Harley Davidson Softail Delux FLSTN BIKE 2011-2015. Electrical Diagnostics — page 3
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Table 2-1. Diagnostic Trouble Codes (DTCs) and Fault Conditions Priority Table
DTC
PRIORITY
FAULT CONDITION
SOLUTION
ORDER
C1184
23
VIN
does not match ABS ECU
7.10 DTC C1158, C1178, C1184
calibration
C1192
109
Front actuator circuit high
7.11 DTC C1192, C1193
C1193
101
Front actuator motor stalled
7.11 DTC C1192, C1193
C1206
129
Front wheel speed sensor
7.4 DTC C1025, C1032, C1206
frequency out of range
C1208
130
Rear
wheel speed sensor fre-
7.5 DTC C1027, C1034, C1208
quency out of range
C1212
122
Front
or rear brake not applied
7.12 DTC C1212
on decel
C1222
16
ABS
voltage low - terminal 11
3.7 DTC C0562, C0563, C1222, C1223
C1223
17
ABS
voltage low - terminal 20
3.7 DTC C0562, C0563, C1222, C1223
C1224
105
Front actuator power shorted
7.2 DTC C1018, C1041, C1042, C1044, C1224, C1225
high
C1225
106
Rear actuator power shorted
7.2 DTC C1018, C1041, C1042, C1044, C1224, C1225
high
C1561
111
Front apply solenoid circuit
7.13 DTC C1561, C1562, C1563, C1564, C1565
open or high resistance
C1562
113
Front apply solenoid circuit
7.13 DTC C1561, C1562, C1563, C1564, C1565
shorted low
C1563
115
Front solenoid circuit shorted
7.13 DTC C1561, C1562, C1563, C1564, C1565
high
C1564
117
Front release solenoid circuit
7.13 DTC C1561, C1562, C1563, C1564, C1565
open or high resistance
C1565
119
Front release solenoid circuit
7.13 DTC C1561, C1562, C1563, C1564, C1565
shorted low
C1567
112
Rear apply solenoid circuit
7.14 DTC C1567, C1568, C1571, C1572, C1573
open or high resistance
C1568
114
Rear apply solenoid circuit
7.14 DTC C1567, C1568, C1571, C1572, C1573
shorted low
C1571
116
Rear solenoid circuit shorted
7.14 DTC C1567, C1568, C1571, C1572, C1573
high
C1572
118
Rear release solenoid circuit
7.14 DTC C1567, C1568, C1571, C1572, C1573
open or high resistance
C1573
120
Rear release solenoid circuit
7.14 DTC C1567, C1568, C1571, C1572, C1573
shorted low
P0031
82
Front HO2 heater low/open
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
P0151, P0152, P0154
P0032
83
Front HO2 heater
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
shorted/high
P0151, P0152, P0154
P0051
84
Rear HO2 heater low/open
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
P0151, P0152, P0154
P0052
85
Rear HO2 heater shorted/high
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
P0151, P0152, P0154
P0107
58
MAP sensor failed low/open
6.6 DTC P0107, P0108
P0108
59
MAP sensor failed high/open
6.6 DTC P0107, P0108
port
P0112
62
Intake air temp sensor
6.7 DTC P0112, P0113
low/shorted
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Table 2-1. Diagnostic Trouble Codes (DTCs) and Fault Conditions Priority Table
DTC
PRIORITY
FAULT CONDITION
SOLUTION
ORDER
P0113
63
Intake air temp sensor
6.7 DTC P0112, P0113
high/open
P0117
60
Engine temp sensor shorted
6.8 DTC P0117, P0118
low
P0118
61
Engine temp sensor
6.8 DTC P0117, P0118
high/open
P0122
44
Throttle position sensor
6.9 DTC P0122, P0123
low/open
P0123
45
Throttle position sensor high
6.9 DTC P0122, P0123
P0131
86
Oxygen sensor low/engine
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
lean (front)
P0151, P0152, P0154
P0132
88
Engine running rich (front)
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
P0151, P0152, P0154
P0134
90
Oxygen sensor high/open
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
(front)
P0151, P0152, P0154
P0151
87
Oxygen sensor low/engine
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
lean (rear)
P0151, P0152, P0154
P0152
89
Engine running rich (rear)
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
P0151, P0152, P0154
P0154
91
Oxygen sensor high/open
6.10 DTC P0031, P0032, P0051, P0052, P0131, P0132, P0134,
(rear)
P0151, P0152, P0154
P0261
54
Fuel injector low/open (front)
6.11 DTC P0261, P0262, P0264, P0265
P0262
55
Fuel injector high/shorted
6.11 DTC P0261, P0262, P0264, P0265
(front)
P0264
56
Fuel injector low/open (rear)
6.11 DTC P0261, P0262, P0264, P0265
P0265
57
Fuel injector high/shorted
6.11 DTC P0261, P0262, P0264, P0265
(rear)
P0371
42
Crank position sensor too
6.12 DTC P0371, P0372, P0374
many pulses
P0372
43
Crank
position sensor too few
6.12 DTC P0371, P0372, P0374
pulses
P0374
41
Crank position sensor no
6.12 DTC P0371, P0372, P0374
pulses
P0444
74
Purge solenoid low/open
6.13 DTC P0444, P0445
P0445
75
Purge solenoid shorted/high
6.13 DTC P0444, P0445
P0502
70
Vehicle speed failed low
6.14 DTC P0502, P0503
P0503
71
Vehicle speed failed high
6.14 DTC P0502, P0503
P0506
76
Idle speed control - rpm too
6.15 DTC P0506, P0507
low
P0507
77
Idle speed control - rpm too
6.15 DTC P0506, P0507
high
P0562
64
ECM voltage low
3.8 DTC P0562
P0603
12
ECM
EEPROM memory error
6.16 DTC P0603, P0605
P0605
11
ECM FLASH memory error
6.16 DTC P0603, P0605
P0641
40
5V
Vref out of range
6.17 DTC P0641
P0661
80
Intake solenoid low/open
6.18 DTC P0661, P0662
P0662
81
Intake solenoid shorted/high
6.18 DTC P0661, P0662
P1009
13
Incorrect password
6.19 DTC P1009
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Table 2-1. Diagnostic Trouble Codes (DTCs) and Fault Conditions Priority Table
DTC
PRIORITY
FAULT CONDITION
SOLUTION
ORDER
P1353
72
No combustion detected
6.20 DTC P1353, P1356
(front)
P1356
73
No
combustion detected (rear)
6.20 DTC P1353, P1356
P1475
78
Exhaust actuator position
6.21 DTC P1475, P1478
error
P1478
79
Exhaust
actuator shorted/high
6.21 DTC P1475, P1478
P1501
92
JSS sensor low
6.22 DTC P1501, P1502
P1502
93
JSS sensor high/open
6.22 DTC P1501, P1502
P1632
179
Odometer learned up
6.23 DTC P1632
P1655
94
ACR solenoid low/open
6.24 DTC P1655, P1656
P1656
95
ACR solenoid high
6.24 DTC P1655, P1656
P2300
46
Ignition coil driver low/open
6.25 DTC P2300, P2301, P2303, P2304
(front)
P2301
47
Ignition coil driver
6.25 DTC P2300, P2301, P2303, P2304
high/shorted (front)
P2303
48
Ignition coil driver low/open
6.25 DTC P2300, P2301, P2303, P2304
(rear)
P2304
49
Ignition coil driver
6.25 DTC P2300, P2301, P2303, P2304
high/shorted (rear)
U0001
1
CAN BUS fault
2.3 ODOMETER SELF-DIAGNOSTIC INOPERATIVE, DTC U0001,
U0011, B2274
U0011
2
CAN BUS low shorted to CAN
2.3 ODOMETER SELF-DIAGNOSTIC INOPERATIVE, DTC U0001,
BUS high
U0011, B2274
U0100
4
Lost communication with ECM
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141,
U0142, U0156
U0121
8
Lost communication with ABS
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141,
U0142, U0156
U0140
3
Lost communication with BCM
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141,
U0142, U0156
U0141
6
Lost communication with
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141,
LHCM
U0142, U0156
U0142
5
Lost communication with
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141,
RHCM
U0142, U0156
U0156
7
Lost communication with
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141,
speedometer
U0142, U0156
DTCs, use a computer-based diagnostic package called
CODE TYPES
DIGITAL TECHNICIAN II (Part No. HD-48650).
PART NUMBER
TOOL NAME
•
Current DTCs reside in the memory of the ECM, BCM,
instruments or ABS module (if equipped) until the DTC is
HD-48650
DIGITAL TECHNICIAN II
resolved.
There are two types of DTCs: current and historic. If a DTC is
•
DTCs are designated by a P, C, B or U depending on the
stored, it can be read using either a computer-based diagnostic
type of code and what module sets them. The ECM sets
package called DIGITAL TECHNICIAN II (Part No. HD-48650)
"P" codes to indicate issues monitored by the ECM. The
or odometer self-diagnostics.
ABS module sets "C" codes indicating an issue with the
ABS on the vehicle. The instruments or BCM can all set
NOTES
"B" codes. All the modules set "U" codes when there is
•
Odometer self-diagnostics will display both current and
historic DTCs. To differentiate between current and historic
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an issue causing the modules not to communicate prop-
SECURITY LAMP
erly.
The security lamp functions in the same manner as the check
•
A historic DTC can be cleared by use of the odometer self-
engine lamp, except that it is controlled by the BCM. The
diagnostics or after a total of 20 error free ignition cycles
security lamp will be turned on when current codes are present
(start and run cycle) have elapsed.
in the BCM.
Current
CHECK ENGINE LAMP
Current DTCs are those which presently disrupt motorcycle
To diagnose ECM system problems, start by observing the
operation and are set during the current ignition cycle. Verify
behavior of the check engine lamp.
DTCs are current by clearing the DTC and then operating the
vehicle under the conditions for setting the DTC. To determine
NOTES
current DTCs are present, clear the DTCs and operate the
•
"IGN ON" means that the engine stop switch is set to RUN
vehicle within the parameters for setting the DTC. See the
(although the engine is not running).
appropriate diagnostic procedures for solutions.
•
When the IGN is turned ON, the check engine lamp will
Historic
illuminate for approximately four seconds and then turn
off.
If a particular problem happens to resolve itself, the active
status problem is dropped and it becomes a historic DTC rather
•
If the check engine lamp is not illuminated at IGN ON or
than a current DTC. DTCs will also lose their current status
if it fails to turn off after the initial four-second period, then
when the ignition is turned off. If the problem still exists when
refer to Table 2-1.
the ignition is turned on the code will show as current.
1.
See Figure 2-1. After the check engine lamp turns off fol-
Historic DTCs are stored for 20 ignition cycles after any DTC
lowing the first four second illumination period, one of two
was last set as current to assist in the diagnosis of intermittent
events may occur.
faults. On the 20th error free cycle, the DTC will clear itself.
a. The lamp remains off. This indicates there are no
It is important to note that historic DTCs will exist whenever
current fault conditions or stored DTCs currently
the system indicates the existence of a current fault. See
detected by the ECM.
2.1 INITIAL DIAGNOSTICS, Multiple Trouble Codes if multiple
b. If the lamp illuminates again and remains illuminated,
DTCs are found.
a current DTC exists.
Diagnostic procedures are designed for use with current DTCs.
As a result, they frequently suggest part replacement. When
2.
The check engine lamp may not illuminate for less than 4
diagnosing a historic DTC, the procedures can be helpful but
seconds under the following conditions:
should not lead to part replacement without verification that
a. IGN OFF/ON within 5 seconds.
the part is faulty.
b. Trip switch activated, then IGN ON within 5 seconds.
MULTIPLE TROUBLE CODES
c. Run/stop switch cycled, then IGN ON within
5
All DTCs are assigned a priority number to determine the order
seconds.
in which they should be diagnosed. In the event there are
d. Security armed vehicles that are moved, then IGN
multiple DTCs present, always diagnose the highest priority
ON, or IGN ON and FOB response is not immediately
first. Refer to Table 2-1.
received (interference).
After a repair is completed, restore connections, clear DTCs
Current DTC notification is not affected by above condi-
and start vehicle. Perform the odometer self-diagnostics test
tions.
to verify repair and that all DTCs have been cleared. If any
DTCs are still present, refer to Table 2-1.
3.
See 2.1 INITIAL DIAGNOSTICS, Code Types for a com-
plete description of DTC formats.
CLEARING DTCS
NOTE
Clear DTCs after any diagnostic or repair procedure. The
odometer is capable of displaying and clearing ECM, BCM,
Some DTCs can only be fully diagnosed during actuation. For
speedometer, tachometer and ABS DTCs. Once the DTCs are
example, a problem with the ignition coil will be considered a
cleared perform a road test to verify DTCs do not return. It is
current fault even after the problem is corrected. The ECM will
important to perform a road test and not simply start the
not know of its resolution until after the coil is exercised by the
motorcycle since some DTCs may require vehicle speed or
vehicle start sequence. In this manner, there may sometimes
other inputs in order to validate repair.
be a false indication of the current DTC.
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ed03174
O
ON
4 Sec.
Lamp OFF: No Current DTCs
OFF
Ignition ON
ON
Lamp OFF: No Current DTCs
OFF
10 mph (16 km/h)
Ignition ON
Lamp Remains ON: Current DTC*
O
ON
4 Sec.
OFF
4 Sec.
Ignition ON
Lamp Remains ON: Current DTC*
ON
OFF
Ignition ON
* Historic DTCs May Also Exist
Figure 2-1. Check Engine Lamp and Security Lamp Operation
is not a normal characteristic of the system. Refer to Table 2-2
SYMPTOMS
for a list of symptoms.
If no DTCs are present but there is a symptom or concern
indicating a malfunction, address and repair the symptom if it
Table 2-2. Symptom Table
SYMPTOM
DIAGNOSTIC PROCEDURE
ABS indicator always on or inoperative
7.15 ABS INDICATOR ALWAYS ON OR INOPERATIVE
Any hand control switch inoperative
5.9 DTC B1103, B1153, B2210, B2212, B2250, B2251, B2252, B2253, B2254, B2260,
B2261, B2262, B2263, B2270
Auxiliary
lamps/running lamps inoperative
5.10 RUNNING LAMPS: DTC B2107, B2108, B2109, B2166, B2168, B2169
Battery runs down during use
3.6 CHARGING SYSTEM
Charging system inoperative
3.6 CHARGING SYSTEM
Engine cranks, but will not start
6.26 ENGINE CRANKS, BUT WILL NOT START
Fuel gauge inaccurate, no DTCs
4.6 GAUGES
Hand control switch inoperative
5.9 DTC B1103, B1153, B2210, B2212, B2250, B2251, B2252, B2253, B2254, B2260,
B2261, B2262, B2263, B2270
Hesitation, loss of power
6.27 HESITATION, LOSS OF POWER
High beam indicator inoperative
4.5 INDICATOR LAMPS
Left hand controls inoperative
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141, U0142, U0156
Low battery after extended IGN OFF
3.6 CHARGING SYSTEM
Low fuel lamp always on
4.5 INDICATOR LAMPS
Low fuel lamp flashes at steady rate
Fuel sender DTC set. See 2.1 INITIAL DIAGNOSTICS.
Low fuel lamp inoperative
4.5 INDICATOR LAMPS
Low or no charging
3.6 CHARGING SYSTEM
Neutral lamp inoperative
4.5 INDICATOR LAMPS
Misfire at idle or under load
6.29 MISFIRE AT IDLE OR UNDER LOAD
Odometer displays "DIAG" at IGN ON
4.3 TRIP ODOMETER FUNCTIONS INOPERATIVE, DTC B2255
Odometer self-diagnostics inoperative
2.3 ODOMETER SELF-DIAGNOSTIC INOPERATIVE, DTC U0001, U0011, B2274
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Table 2-2. Symptom Table
SYMPTOM
DIAGNOSTIC PROCEDURE
Oil pressure lamp always on
4.5 INDICATOR LAMPS
Oil pressure lamp inoperative
4.5 INDICATOR LAMPS
Overcharging
3.6 CHARGING SYSTEM
P&A battery power inoperative
5.1 ACCESSORIES: DTC B2112, B2113, B2114
Running lamps inoperative
5.10 RUNNING LAMPS: DTC B2107, B2108, B2109, B2166, B2168, B2169
Security lamp inoperative
5.11 SECURITY SYSTEM
Speedometer inoperative
4.1 INSTRUMENTS
Starter does not spin
3.2 STARTING SYSTEM
Starter solenoid clicks
3.2 STARTING SYSTEM
Starter spins, but does not engage
3.2 STARTING SYSTEM
Starter stalls or spins too slowly
3.2 STARTING SYSTEM
Starts, then stalls
6.28 STARTS, THEN STALLS
T
rip odometer reset switch inoperative
4.3 TRIP ODOMETER FUNCTIONS INOPERATIVE, DTC B2255
T
rip switch functions will not enter self-
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141, U0142, U0156
diagnostics
T
urn signal indicator inoperative
4.5 INDICATOR LAMPS
Vehicle power inoperative
2.4 NO VEHICLE POWER OR DTC U0100, U0121, U0140, U0141, U0142, U0156
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SERIAL DATA COMMUNICATION
2.2
DESCRIPTION AND OPERATION
ed03462
PART NUMBER
TOOL NAME
3
2
4
5
7
6
1
HD-48650
DIGITAL TECHNICIAN II
CAN bus circuits are used by modules and diagnostic tools to
8
share information.
ed03311
1
4
2
3
9
11
10
1. ECM
1. BCM [242]
2. ECM [78-2]
2. ABS ECU [166]
3. ECM [78-1]
3. Rear WSS [168]
4. Purge solenoid [95] (back side of purge
4. Rear tire
solenoid)
Figure 2-2. ABS [166]: Except FXSB
5. Security siren
6. BCM
7. BCM [242] (back side of BCM)
8. Security siren [142]
9. Rear WSS [168]
10. ABS [166]
11. ABS ECU
Figure 2-3. Electrical Panel: FXSB
ed03469
3
3
1
2
1. ECM [78-1]
2. ECM [78-2]
3. Retaining clips
Figure 2-4. ECM [78-1] and [78-2]: Except FXSB
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The speedometer, ECM, BCM, hand controls and ABS (if
nication malfunction, this redundant circuit is used to keep the
equipped) all communicate on the CAN bus. The CAN commu-
engine from shutting off until the switch is turned off.
nication uses a (W/BK) and (W/R) wire in a twisted pair that
The hand controls also control the turn signals and running
runs to all the modules and is used to transfer data from one
lights (DOM) on vehicles where the front turn signals are wired
module to the other. This also runs to the DLC [91] and is used
to the hand controls.
to communicate with the modules using DIGITAL TECHNICIAN
II (Part No. HD-48650).
Data Link Connector (DLC)
COMPONENTS
The DLC is located under the seat. The DLC is used to connect
the DIGITAL TECHNICIAN II (Part No. HD-48650) to the
motorcycle.
PART NUMBER
TOOL NAME
HD-48650
DIGITAL TECHNICIAN II
COMMUNICATION DTCS AND ERROR
MESSAGES
Electronic Control Module (ECM)
There are several DTCs that may set due to an issue with the
See Figure 2-4. The ECM is located under the seat, except on
CAN bus communication. Different DTCs are set by different
some models it is located on the electrical panel behind the
modules. If a module loses communication with the rest of the
fender extension. The ECM monitors the engine sensors to
system it will set DTC U0001, but the DTC can not be retrieved
enhance performance and driveability. This is done by adjusting
until the CAN lines to that module are restored. If a module
the fuel and spark delivery based on the information provided
goes OFF line due to loss of PWR or GND or a loss of commu-
by the sensors.
nication to that module, the module will not set a code, but the
other modules will set DTCs indicating they are not able to
Speedometer
communicate with it. When the speedometer recognizes a
The speedometer contains part of the indicator and warning
problem on the CAN bus it may display "BUS Err" on the odo-
lamps for the motorcycle. It uses the CAN communication to
meter.
receive information from the other modules to know which
"VINERR" may also be displayed in the odometer if the
lamps to illuminate at any given time. Vehicle speed is also
speedometer and ECM are not seeing the same VIN in both
sent to the speedometer over the CAN bus. The LEDs in the
modules. This will usually occur after replacing one of the two
indicator bar are directly wired to the speedometer. The
modules. The two modules must have the VINs match before
speedometer turns the indicators on and off based off com-
they can share odometer mileage. Both the ECM and
mands from the BCM over the CAN bus.
speedometer retain the odometer value. If the speedometer is
replaced, it will display the odometer value stored in the ECM.
BCM
The replacement speedometer will become locked to the ECM
See Figure 2-2. The BCM is located on the electrical panel
after 31.1 miles (50 km) have been accumulated. The trip B
behind the fender extension. The BCM supplies ignition and
odometer will display the countdown mileage. Once the
accessory power to most of the vehicle and controls the power
countdown reaches zero, the speedometer is locked to the
mode of the electrical system. It controls the lighting along with
ECM. If installed on another vehicle, the odometer will display
other functions on the vehicle by using the switches as inputs
"VINERR". If the speedometer is removed from the vehicle
and the power circuits for the lights as outputs. The BCM is
before the countdown reaches zero, it has not been locked to
also connected to the CAN bus and shares information with
the ECM. This mileage countdown allows for a road test to
the other modules on the vehicle.
verify that speedometer replacement was the proper repair.
ABS Module
Diagnostic Tips
See Figure 2-2. The ABS ECU is located on the electrical panel
Modules must have power and be grounded in order to com-
behind the fender extension. The ECU receives input from the
municate. Therefore, when checking any communication DTC
front and rear WSS, and controls the front and rear HCUs
be sure to check the power and ground connections on the
accordingly. The ABS ECU communicates over the CAN bus
suspected module. Bus Err may show on the odometer if the
to the speedometer to control the ABS indicator.
following are present:
Hand Control Modules
•
CAN wires shorted together.
The left and right hand control modules control all the switches
•
CAN wire shorted to PWR or GND.
and controls on the handlebars. The engine stop switch has a
•
CAN transceiver on some module failed shorted.
redundant wire directly to the BCM. In the event of a commu-
•
Non-compliant module connected to the CAN bus.
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ODOMETER SELF-DIAGNOSTIC INOPERATIVE,
DTC U0001, U0011, B2274
2.3
DESCRIPTION AND OPERATION
Diagnostic Tips
The speedometer does not have an ignition input. Instead, it
PART NUMBER
TOOL NAME
receives a message over the CAN bus, indicating the IGN is
HD-48650
DIGITAL TECHNICIAN II
ON. Also, the trip odometer reset switch is a CAN communica-
tion to the speedometer. Therefore, CAN bus errors can cause
the odometer self-diagnostics to be completely inoperative or
CAN communication uses a set of wires in a twisted pair. These
to only partially function. The speedometer backlighting may
two wires are designated as CAN low and CAN high circuits.
not function along with the hand control switches and the
Both circuits are connected to the ECM, BCM, instruments,
indicators. The odometer may read "BUS Err" in this condition,
both hand control modules and the ABS module (if equipped).
prior to the odometer becoming inoperative.
The ECM and the right hand control module contain 120 Ohm
terminating resistors. Typical resistance between the two cir-
NOTE
cuits is approximately 60 Ohms.
If DIGITAL TECHNICIAN II (Part No. HD-48650) is connected
•
DTC U0001 indicates there is a fault on the CAN bus cir-
to the DLC [91] and communicating with the vehicle, then the
cuits. This code can be set by the ECM, BCM, instruments
odometer self-diagnostics will not function properly. Disconnect
and ABS module (if equipped). This code is usually
DIGITAL TECHNICIAN II (Part No. HD-48650) before entering
accompanied by other "U" codes, due to it causing a loss
odometer self-diagnostics.
of communication between the modules on the CAN bus.
The BCM supplies power to several systems on the vehicle.
•
DTC U0011 indicates the high and low CAN circuits are
When testing for a short to voltage, perform all tests before
shorted together. This fault will be accompanied by other
disconnecting the BCM to keep from powering down systems
"U" codes and may cause the odometer display not to
on the vehicle. If the short to voltage goes away when the BCM
function.
is disconnected, test for continuity between the circuit in
question and BCM [242B] terminals F4, J3, L3, L4 and M2 to
•
DTC B2274 indicates there is a fault with the battery fuse
verify the tested circuit is not shorted to one of these circuits.
or the (R/O) wire.
If continuity is present, repair short to circuit instead of replacing
the BCM.
NOTE
Always start from 2.1 INITIAL DIAGNOSTICS before pro-
Connector Information
ceeding with this test.
For additional information about the connectors in the following
diagram(s) and diagnostic procedure(s), including the color of
Table 2-3. Code Description
the harness test kit terminal probes, see B.1 CONNECTORS.
DTC
DESCRIPTION
U0001
CAN bus fault
U0011
CAN bus low shorted to CAN bus high
B2274
Constant battery line fault
2-14 2013 Softail Diagnostics: Initial Diagnostics and Serial Data
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em01517
Left
Right
Hand
Hand
Controls
Controls
[24B] [24A]
[22A-1] [22B-1]
R/O
1
1
R/O
R/O
1
1
R/O
BK
2
2
BK/GN
BK/GN
2
2
BK
W/R
3
3
W/R
W/R
3
3
W/R
W/BK
4
4
W/BK
W/BK
4
4
W/BK
[242B] [242A]
[78A-1] [78B-1]
W/BE
C3
C3
Ignition Switch Input
CAN Low
13
13
W/BK
W/BK
E2
E2
CAN Low
CAN High
14
14
W/R
W/R
D2
D2
CAN High
Ground
10
10
BK/GN
BK/GN
G4
G4
Ground
BCM
ECM
Ground
10
10
BK/GN
R/GN
L3
L3
System Power
Battery Fuse
18
18
R/O
R
1
1
Battery Fuse
System Power
16
16
R/GN
[259B] [259A]
[78A-2] [78B-2]
W/R
1
Main
R/GN
DLC
Wiring
W/BK
3
[91A]
[20A] [20B]
[39B] [39A]
W/R
1
1
W/R
W/R
2
2
CAN High
W/BK
3
3
W/BK
W/BK
8
8
CAN Low
[166A] [166B]
BK/GN
2
2
BK/GN
BK/GN
7
7
Ground
CAN High
18
18
W/R
R/O
6
6
R/O
R/O
5
5
Battery Fuse
CAN Low
19
19
W/BK
Speedometer
ABS
Battery Power
20
20
R
W/BE
5
5
W/BE
Battery Power
11
11
R
(Except
Ground
6
6
[33B] [33A]
BK
FXS/B)
BK/GN
Ground
Ignition
BK/GN
Switch
W/BE
BCM Input
GND 2
W/BE
[33B] [33A]
BK/GN
BK/GN
1
1
Ground
Ignition
(FXS/B)
Switch
W/BE
W/BE
2
2
BCM Input
GND 1
Battery
Power
Battery
Fuse
Figure 2-5. CAN Bus Circuit
2013 Softail Diagnostics: Initial Diagnostics and Serial Data 2-15
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ODOMETER SELF-DIAGNOSTIC
4. LHCM Test
INOPERATIVE, DTC U0001, U0011, B2274
1. Disconnect LHCM [24].
2. Is resistance between [91A] terminals 1 and 3 less than
PART NUMBER
TOOL NAME
50 Ohms?
HD-41404
HARNESS CONNECTOR TEST KIT
a. Yes. Go to Test 5.
HD-42682
BREAKOUT BOX
b. No. Replace LHCM.
HD-46601
BREAKOUT BOX ADAPTERS
5. RHCM Test
HD-48642
BREAKOUT BOX
HD-50390-1
BREAKOUT BOX
1. Disconnect RHCM [22-1].
HD-50390-2
BCM CABLE
2. Is resistance between [91A] terminals 1 and 3 less than
50 Ohms?
HD-50390-2-P
BCM OVERLAY
a. Yes, with tachometer. Go to Test 6.
HD-50390-4
ECM CABLE
b. Yes, without tachometer. Go to Test 7.
HD-50390-4-P
ECM OVERLAY
c. No. Replace RHCM.
Table 2-4. Odometer Self-Diagnostic Inoperative, DTC
6. Tachometer Test
U0001, U0011, B2274 Diagnostic Faults
1. Disconnect tachometer [108].
POSSIBLE CAUSES
2. Is resistance between [91A] terminals 1 and 3 less than
Blown battery fuse
50 Ohms?
Open battery power circuit
a. Yes. Go to Test 7.
Short between CAN low and high circuits
b. No. Replace tachometer.
Open in CAN high circuit
7. BCM Test
Open in CAN low circuit
1. Disconnect BCM [242].
Short to ground on CAN high circuit
Short to ground on CAN low circuit
2. Is resistance between [91A] terminals 1 and 3 less than
50 Ohms?
Short to voltage on CAN high circuit
a. Yes, with ABS. Go to Test 8.
Short to voltage on CAN low circuit
b. Yes, without ABS. Repair short between high and
1. CAN Bus Shorted Together Test
low speed CAN circuits.
1. Turn IGN OFF.
c. No. Replace BCM.
2. Using HARNESS CONNECTOR TEST KIT (Part No. HD-
8. ABS Test
41404), test resistance between DLC [91A] terminals 1
and 3.
1. Disconnect ABS module [166].
3. Is resistance less than 50 Ohms?
2. Is resistance between [91A] terminals 1 and 3 less than
a. Yes. Go to Test 2.
50 Ohms?
a. Yes. Repair short between high and low speed CAN
b. No. Go to Test 9.
circuits.
2. Speedometer Test
b. No. Replace ABS module.
1. Disconnect speedometer [39].
9. CAN High Circuit Short to Voltage Test
2. Is resistance between [91A] terminals 1 and 3 less than
1. Turn IGN ON.
50 Ohms?
a. Yes. Go to Test 3.
2. Test voltage between [91A] terminal 1 and ground.
b. No. Replace speedometer.
3. Is voltage greater than 4V?
a. Yes. Go to Test 10.
3. ECM Test
b. No. Go to Test 18.
1. Disconnect ECM [78B-1].
10. Speedometer Test
2. Is resistance between [91A] terminals 1 and 3 less than
50 Ohms?
1. Turn IGN OFF.
a. Yes. Go to Test 4.
2. Disconnect speedometer [39].
b. No. Replace ECM.
2-16 2013 Softail Diagnostics: Initial Diagnostics and Serial Data
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3. Turn IGN ON.
4. Is voltage between [91A] terminals 1 and ground greater
than 4V?
4. Is voltage between [91A] terminal 1 and ground greater
a. Yes. Go to Test 16.
than 4V?
a. Yes. Go to Test 11.
b. No. Replace tachometer.
b. No. Replace speedometer.
16. BCM Test
11. ECM Test
1. Disconnect BCM power [259].
1. Turn IGN OFF.
2. Disconnect BCM [242].
2. Disconnect ECM [78B-1].
3. Is voltage between [91A] terminal 1 and ground greater
than 4V?
3. Turn IGN ON.
a. Yes. Repair short to voltage in (W/R) wire.
4. Is voltage between [91A] terminal 1 and ground greater
b. No. Go to Test 17.
than 4V?
a. Yes. Go to Test 12.
17. CAN Low Circuit Short to Voltage Test
b. No. Replace ECM.
1. Test voltage between [91A] terminal 3 and ground.
12. LHCM Test
2. Is voltage present?
a. Yes. Repair short to voltage in (W/BK) wire.
1. Turn IGN OFF.
b. No. Replace BCM.
2. Disconnect LHCM [24].
3. Turn IGN ON.
18. CAN High Circuit Short to Ground Test
4. Is voltage between [91A] terminal 1 and ground greater
1. Turn IGN OFF.
than 4V?
2. Test resistance between [91A] terminal 1 and ground.
a. Yes, with ABS. Go to Test 13.
3. Is resistance less than 1000 Ohms?
b. Yes, without ABS. Go to Test 14.
a. Yes. Go to Test 19.
c. No. Replace LHCM.
b. No. Go to Test 26.
13. ABS Test
19. Speedometer Test
1. Turn IGN OFF.
1. Disconnect speedometer [39].
2. Disconnect ABS module [166].
2. Is resistance between [91A] terminal 1 and ground less
3. Turn IGN ON.
than 1000 Ohms?
4. Is voltage between [91A] terminal 1 and ground greater
a. Yes. Go to Test 20.
than 4V?
b. No. Replace speedometer.
a. Yes. Go to Test 14.
20. ECM Test
b. No. Replace ABS module.
1. Disconnect ECM [78B-1].
14. RHCM Test
2. Is resistance between [91A] terminal 1 and ground less
1. Turn IGN OFF.
than 1000 Ohms?
2. Disconnect RHCM [22-1].
a. Yes. Go to Test 21.
3. Turn IGN ON.
b. No. Replace ECM.
4. Is voltage between [91A] terminal 1 and ground greater
21. LHCM Test
than 4V?
1. Disconnect LHCM [24].
a. Yes, with tachometer. Go to Test 15.
2. Is resistance between [91A] terminal 1 and ground less
b. Yes, without tachometer. Go to Test 16.
than 1000 Ohms?
c. No. Replace RHCM.
a. Yes. Go to Test 22.
15. Tachometer Test
b. No. Replace LHCM.
1. Turn IGN OFF.
22. RHCM Test
2. Disconnect tachometer [108].
1. Disconnect RHCM [22-1].
3. Turn IGN ON.
2013 Softail Diagnostics: Initial Diagnostics and Serial Data 2-17
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2. Is resistance between [91A] terminal 1 and ground less
29. LHCM Test
than 1000 Ohms?
1. Disconnect LHCM [24].
a. Yes, with tachometer. Go to Test 23.
2. Is resistance between [91A] terminal 3 and ground less
b. Yes, without tachometer. Go to Test 24.
than 1000 Ohms?
c. No. Replace RHCM.
a. Yes. Go to Test 30.
b. No. Replace LHCM.
23. Tachometer Test
1. Disconnect tachometer [108].
30. RHCM Test
2. Is resistance between [91A] terminals 1 and ground less
1. Disconnect RHCM [22-1].
than 1000 Ohms?
2. Is resistance between [91A] terminal 3 and ground less
a. Yes. Go to Test 24.
than 1000 Ohms?
b. No. Replace tachometer.
a. Yes, with tachometer. Go to Test 31.
b. Yes, without tachometer. Go to Test 32.
24. BCM Test
c. No. Replace RHCM.
1. Disconnect BCM [242].
2. Is resistance between [91A] terminal 1 and ground less
31. Tachometer Test
than 1000 Ohms?
1. Disconnect tachometer [108].
a. Yes, with ABS. Go to Test 25.
2. Is resistance between [91A] terminals 3 and ground less
b. Yes, without ABS. Repair short to ground in (W/R)
than 1000 Ohms?
wire.
a. Yes. Go to Test 32.
c. No. Replace BCM.
b. No. Replace tachometer.
25. ABS Test
32. BCM Test
1. Disconnect ABS module [166].
1. Disconnect BCM [242].
2. Is resistance between [91A] terminal 1 and ground less
2. Is resistance between [91A] terminal 3 and ground less
than 1000 Ohms?
than 1000 Ohms?
a. Yes. Repair short to ground in (W/R) wire.
a. Yes, with ABS. Go to Test 33.
b. No. Replace ABS module.
b. Yes, without ABS. Repair short to ground in (W/BK)
wire.
26. CAN Low Circuit Short to Ground Test
c. No. Replace BCM.
1. Test resistance between [91A] terminal 3 and ground.
2. Is resistance less than 1000 Ohms?
33. ABS Test
a. Yes. Go to Test 27.
1. Disconnect ABS module [166].
b. No. Go to Test 34.
2. Is resistance between [91A] terminal 3 and ground less
than 1000 Ohms?
27. Speedometer Test
a. Yes. Repair short to ground in (W/BK) wire.
1. Disconnect speedometer [39].
b. No. Replace ABS module.
2. Is resistance between [91A] terminal 3 and ground less
than 1000 Ohms?
34. CAN Low Circuit Resistance to ECM Test
a. Yes. Go to Test 28.
1. Disconnect ECM [78].
b. No. Replace speedometer.
2. Connect BREAKOUT BOX (Part No. HD-50390-1) and
ECM CABLE (Part No. HD-50390-4) to wiring harness
28. ECM Test
[78B-1], leaving [78A] disconnected.
1. Disconnect ECM [78B-1].
3. Verify ECM OVERLAY (Part No. HD-50390-4-P) is in
2. Is resistance between [91A] terminal 3 and ground less
position on BOB.
than 1000 Ohms?
4. Test resistance between [91A] terminal 3 (W/BK) wire and
a. Yes. Go to Test 29.
BOB terminal 13.
b. No. Replace ECM.
NOTE
When measuring resistance (Ohms), compensate for test lead
resistance before performing the measurement. Select the
Ohms position and touch the test leads together. Refer to the
2-18 2013 Softail Diagnostics: Initial Diagnostics and Serial Data
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multimeter user's manual to either zero the display or manually
4. Is resistance greater than 0.5 Ohm?
subtract the test lead resistance from the measured circuit's
a. Yes. Repair (W/BK) wire between [91A] terminal 3
value.
and [166B] terminal 19.
5. Is resistance greater than 0.5 Ohm?
b. No. Go to Test 39.
a. Yes. Repair (W/BK) wire between [91A] terminal 3
and [78B-1] terminal 13.
39. CAN High Circuit Resistance to ABS
b. No. Go to Test 35.
Module Test
1. Test resistance between [91A] terminal 1 (W/R) wire and
35. CAN High Circuit Resistance to ECM
BOB terminal 18.
Test
2. Is resistance greater than 0.5 Ohm?
1. Test resistance between [91A] terminal 1 (W/R) wire and
a. Yes. Repair (W/R) wire between [91A] terminal 1 and
BOB terminal 14.
[166B] terminal 18.
2. Is resistance greater than 0.5 Ohm?
b. No, with tachometer. Go to Test 40.
a. Yes. Repair (W/R) wire between [91A] terminal 1 and
c. No, without tachometer. Go to Test 42.
[78B-1] terminal 14.
b. No. Go to Test 36.
40. CAN Low Circuit Resistance to
Tachometer Test
36. CAN Low Circuit Resistance to BCM Test
1. Remove cables and ABS BOB, connect ABS module.
1. Remove cables and ECM BOB, connect ECM.
2. Disconnect tachometer [108].
2. Disconnect BCM [242].
3. Connect BREAKOUT BOX (Part No. HD-42682) and
3. Connect BREAKOUT BOX (Part No. HD-50390-1) and
BREAKOUT BOX ADAPTERS (Part No. HD-46601) to
BCM CABLE (Part No. HD-50390-2) to wiring harness
wiring harness [108B], leaving [108A] disconnected, test
[242B], leaving [242A] disconnected,
resistance between [91A] terminal 3 (W/BK) wire and BOB
4. Verify BCM OVERLAY (Part No. HD-50390-2-P) is in
terminal 8.
position on BOB.
4. Is resistance greater than 0.5 Ohm?
5. Test resistance between [91A] terminal 3 (W/BK) wire and
a. Yes. Repair (W/BK) wire between [91A] terminal 3
BOB terminal E2.
and [108B] terminal 8.
6. Is resistance greater than 0.5 Ohm?
b. No. Go to Test 41.
a. Yes. Repair (W/BK) wire between [91A] terminal 3
and [242B] terminal E2.
41. CAN High Circuit Resistance to
Tachometer Test
b. No. Go to Test 37.
1. Test resistance between [91A] terminal 1 (W/R) wire and
37. CAN High Circuit Resistance to BCM
BOB terminal 2.
Test
2. Is resistance greater than 0.5 Ohm?
1. Test resistance between [91A] terminal 1 (W/R) wire and
a. Yes. Repair (W/R) wire between [91A] terminal 1 and
BOB terminal D2.
[108B] terminal 2.
2. Is resistance greater than 0.5 Ohm?
b. No. Go to Test 42.
a. Yes. Repair (W/R) wire between [91A] terminal 1 and
[242B] terminal D2.
42. CAN Low Circuit Resistance to
Speedometer Test
b. No, with ABS. Go to Test 38.
1. Remove cables and ABS BOB, connect ABS module.
c. No, without ABS. Go to Test 40.
2. Remove tachometer BOB, connect tachometer.
38. CAN Low Circuit Resistance to ABS
3. Disconnect speedometer [39].
Module Test
4. Connect BREAKOUT BOX (Part No. HD-42682) and
1. Remove cables and BCM BOB, connect BCM.
BREAKOUT BOX ADAPTERS (Part No. HD-46601) to
wiring harness [39B], leaving [39A] disconnected, test
2. Disconnect ABS module [166].
resistance between [91A] terminal 3 (W/BK) wire and BOB
3. Connect BREAKOUT BOX (Part No. HD-48642) to wiring
terminal 8.
harness [166B], leaving [166A] disconnected, test resist-
ance between [91A] terminal 3 (W/BK) wire and BOB ter-
minal 19.
2013 Softail Diagnostics: Initial Diagnostics and Serial Data 2-19
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5. Is resistance greater than 0.5 Ohm?
44. Speedometer Power Test
a. Yes. Repair (W/BK) wire between [91A] terminal 3
1. Test voltage between BOB terminal 5 and ground.
and [108B] terminal 8.
2. Is battery voltage present?
b. No. Go to Test 43.
a. Yes. Go to Test 37.
43. CAN High Circuit Resistance to
b. No. Repair open in (R/O) wire.
Speedometer Test
45. Speedometer Ground Test
1. Test resistance between [91A] terminal 1 (W/R) wire and
BOB terminal 2.
1. Test voltage between BOB terminals 5 and 7.
2. Is resistance greater than 0.5 Ohm?
2. Is battery voltage present?
a. Yes. Repair (W/R) wire between [91A] terminal 1 and
a. Yes, speedometer setting code. Replace speedo-
[39B] terminal 2.
meter.
b. No. Go to Test 44.
b. Yes, ECM setting code. Replace ECM.
c. No. Repair open in (BK/GN) wire.
2-20 2013 Softail Diagnostics: Initial Diagnostics and Serial Data
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NO VEHICLE POWER OR DTC U0100, U0121,
U0140, U0141, U0142, U0156
2.4
DESCRIPTION AND OPERATION
Diagnostic Tips
Modules must have power in order to communicate on the
PART NUMBER
TOOL NAME
CAN bus. It is important to check for good power and ground
HD-48650
DIGITAL TECHNICIAN II
on any module that is not communicating effectively on the
CAN bus network. At least two modules will set a lost commu-
nication DTC when one module has lost the ability to commu-
The CAN bus circuit provides a means for the ECM, speedo-
nicate on the CAN bus. When two or more modules are setting
meter, BCM, hand control modules and the ABS module (if
the same U-code this indicates a problem with the device the
equipped) to communicate their current status. When all
code is set against. If two or more modules are intermittently
operating parameters on the CAN bus are within specifications,
setting the same U-code, it indicates an intermittent problem
a state of health message is sent between the components.
with the device the code is set against or intermittent CAN,
The CAN bus is made up of two circuits. The (W/R) is the CAN
power or ground wires to the device. See 1.3 DIAGNOSTICS
bus high circuit and the (W/BK) is the CAN bus low circuit. Both
AND TROUBLESHOOTING, Wiggle Test to test wiring to the
of these circuits show around 2.5V when measured between
component.
each of the circuits and ground with the IGN ON. These circuits
The BCM supplies power to several systems on the vehicle.
are connected to each module on the CAN bus network. A fault
When testing for a short to voltage, perform all tests before
on either one of these circuits will cause several modules to
disconnecting the BCM to keep from powering down systems
set "U" codes and may cause a complete loss of communica-
on the vehicle. If the short to voltage goes away when the BCM
tion between all modules.
is disconnected, test for continuity between the circuit in
question and BCM [242B] terminals F4, J3, L3, L4 and M2 to
Table 2-5. Code Description
verify the tested circuit is not shorted to one of these circuits.
DTC
DESCRIPTION
If continuity is present, repair shorted circuit instead of replacing
the BCM.
U0100
Lost communication with ECM, set by BCM or
speedometer
Historic U-codes may be found if battery power has been lost
for any reason or if the main or battery fuse have been discon-
U0121
Lost communication with ABS, set by BCM or
nected and reconnected. This may also happen if during dia-
speedometer
gnostics using DIGITAL TECHNICIAN II (Part No. HD-48650).
U0140
Lost communication with BCM, set by speedo-
The diagnostics connector has been disconnected before
meter, ECM or ABS (if equipped)
vehicle has been powered down. This is not an indication of a
U0141
Lost communication with LHCM, set by BCM,
problem and does not cause any loss of functionality.
speedometer or ECM
Connector Information
U0142
Lost communication from RHCM, set by BCM,
For additional information about the connectors in the following
ECM or ABS (if equipped)
diagram(s) and diagnostic procedure(s), including the color of
U0156
Lost communication from speedometer, set by
the harness test kit terminal probes, see B.1 CONNECTORS.
BCM or ECM
2013 Softail Diagnostics: Initial Diagnostics and Serial Data 2-21
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em01517
Left
Right
Hand
Hand
Controls
Controls
[24B] [24A]
[22A-1] [22B-1]
R/O
1
1
R/O
R/O
1
1
R/O
BK
2
2
BK/GN
BK/GN
2
2
BK
W/R
3
3
W/R
W/R
3
3
W/R
W/BK
4
4
W/BK
W/BK
4
4
W/BK
[242B] [242A]
[78A-1] [78B-1]
W/BE
C3
C3
Ignition Switch Input
CAN Low
13
13
W/BK
W/BK
E2
E2
CAN Low
CAN High
14
14
W/R
W/R
D2
D2
CAN High
Ground
10
10
BK/GN
BK/GN
G4
G4
Ground
BCM
ECM
Ground
10
10
BK/GN
R/GN
L3
L3
System Power
Battery Fuse
18
18
R/O
R
1
1
Battery Fuse
System Power
16
16
R/GN
[259B] [259A]
[78A-2] [78B-2]
W/R
1
Main
R/GN
DLC
Wiring
W/BK
3
[91A]
[20A] [20B]
[39B] [39A]
W/R
1
1
W/R
W/R
2
2
CAN High
W/BK
3
3
W/BK
W/BK
8
8
CAN Low
[166A] [166B]
BK/GN
2
2
BK/GN
BK/GN
7
7
Ground
CAN High
18
18
W/R
R/O
6
6
R/O
R/O
5
5
Battery Fuse
CAN Low
19
19
W/BK
Speedometer
ABS
Battery Power
20
20
R
W/BE
5
5
W/BE
Battery Power
11
11
R
(Except
Ground
6
6
[33B] [33A]
BK
FXS/B)
BK/GN
Ground
Ignition
BK/GN
Switch
W/BE
BCM Input
GND 2
W/BE
[33B] [33A]
BK/GN
BK/GN
1
1
Ground
Ignition
(FXS/B)
Switch
W/BE
W/BE
2
2
BCM Input
GND 1
Battery
Power
Battery
Fuse
Figure 2-6. CAN Bus Circuit
2-22 2013 Softail Diagnostics: Initial Diagnostics and Serial Data
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DTC U0100
4. ECM [78-2] Ground Test
1. Test continuity between BOB [78-2] terminal
10 and
PART NUMBER
TOOL NAME
ground.
HD-41404
HARNESS CONNECTOR TEST KIT
2. Is continuity present?
HD-50390-1
BREAKOUT BOX
a. Yes. Go to Test 5.
HD-50390-4
ECM CABLE
b. No. Repair open in (BK/GN) wire.
HD-50390-4-P
ECM OVERLAY
5. CAN High Circuit Continuity Test
1. Test continuity between BOB [78-1] terminal 14 and DLC
Table 2-6. DTC U0100 Diagnostic Faults
[91A] terminal 1.
POSSIBLE CAUSES
2. Is continuity present?
Open in CAN high circuit to the ECM
a. Yes. Go to Test 6.
Open in CAN low circuit to the ECM
b. No. Repair open in (W/R) wire.
Open in ECM system power circuit
Open in ECM ground circuit
6. CAN Low Circuit Continuity Test
1. Test continuity between BOB [78-1] terminal 13 and [91A]
1. Module Test
terminal 3.
1. View odometer.
2. Is continuity present?
2. Is only the BCM setting DTC?
a. Yes. Replace ECM.
a. Yes. Go to Test 10.
b. No. Repair open in (W/BK) wire.
b. No, ABS module only. Go to Test 7.
7. Verify ABS Module Test
c. No, speedometer only. Go to Test 8.
1. Turn IGN OFF.
d. No, tachometer only. Go to Test 9.
2. Replace ABS module with a known good ABS module.
e. No, multiple modules. Go to Test 2.
3. Turn IGN ON.
2. System Power Test
4. Attempt to start vehicle.
1. Turn IGN OFF.
5. Check DTC.
2. Connect BREAKOUT BOX (Part No. HD-50390-1) and
6. Is DTC U0100 present?
ECM CABLE (Part No. HD-50390-4) to wiring harness
a. Yes. Check vehicle for any accessories connected
connectors [78B-1] and [78B-2], leaving [78A] discon-
to the CAN bus.
nected. See 1.2 DIAGNOSTIC TOOLS.
b. No. Replace ECM.
3. Verify ECM OVERLAY (Part No. HD-50390-4-P) is in
position on BOB.
8. Verify Speedometer Test
4. Turn IGN ON.
1. Turn IGN OFF.
5. Using the HARNESS CONNECTOR TEST KIT (Part
2. Replace speedometer with a known good speedometer.
No. HD-41404), test for voltage between BOB [78-2] ter-
minal 16 and ground.
3. Turn IGN ON.
6. Is battery voltage present?
4. Attempt to start vehicle.
a. Yes. Go to Test 3.
5. Check DTC.
b. No. Repair open in (R/GN) wire.
6. Is DTC U0100 present?
a. Yes. Check vehicle for any accessories connected
3. ECM [78-1] Ground Test
to the CAN bus.
1. Turn IGN OFF.
b. No. Replace speedometer.
2. Test continuity between BOB [78-1] terminal
10 and
ground.
9. Verify Tachometer Test
3. Is continuity present?
1. Turn IGN OFF.
a. Yes. Go to Test 4.
2. Replace tachometer with a known good tachometer.
b. No. Repair open in (BK/GN) wire.
3. Turn IGN ON.
4. Attempt to start vehicle.
2013 Softail Diagnostics: Initial Diagnostics and Serial Data 2-23
HOME
5. Check DTC.
3. Is continuity present?
a. Yes. Go to Test 4.
6. Is DTC U0100 present?
a. Yes. Check vehicle for any accessories connected
b. No. Repair open in (W/R) wire.
to the CAN bus.
4. CAN Low Circuit Continuity Test
b. No. Replace tachometer.
1. Test for continuity between BOB terminal 19 and [91A]
10. Verify BCM Test
terminal 3.
1. Replace BCM with a known good BCM.
2. Is continuity present?
a. Yes. Replace the ABS module.
2. Turn IGN ON.
b. No. Repair open in (W/BK) wire.
3. Attempt to start vehicle.
4. Check DTC.
NO VEHICLE POWER: DTC U0140
5. Is DTC U0100 present?
PART NUMBER
TOOL NAME
a. Yes. Check vehicle for any accessories connected
to the CAN bus.
HD-41404
HARNESS CONNECTOR TEST KIT
b. No. Replace BCM.
HD-50390-1
BREAKOUT BOX
HD-50390-2
BCM CABLE
DTC U0121
HD-50390-2-P
BCM OVERLAY
PART NUMBER
TOOL NAME
HD-48642
ABS BREAKOUT BOX
Table 2-8. No Vehicle Power Diagnostic Faults: DTC U0140
POSSIBLE CAUSES
Table 2-7. DTC U0121 Diagnostic Faults
Open in CAN high circuit to the BCM
Open in CAN low circuit to the BCM
POSSIBLE CAUSES
Open in ignition switch circuit
Open in CAN high circuit to the ABS module
Short to ground in ignition switch circuit
Open in CAN low circuit to the ABS module
Short to voltage in ignition switch circuit
Open in ABS system power circuit
Ignition switch malfunction
Open in ABS ground circuit
Open in BCM battery power circuit
1. ABS Voltage Test
Open in BCM ground circuit
1. Turn IGN OFF.
1. Fuse Test
2. Connect ABS BREAKOUT BOX (Part No. HD-48642) to
the wiring harness [166B], leaving the [166A] discon-
1. Verify all fuses are good.
nected. See 1.2 DIAGNOSTIC TOOLS.
2. Are fuses good?
3. Test voltage between BOB terminal 20 and ground.
a. Yes. Go to Test 2.
4. Is battery voltage present?
b. No. Repair fuse.
a. Yes. Go to Test 2.
2. Ignition Switch Ground Test
b. No. Repair open in (R) wire.
1. Turn IGN OFF.
2. ABS Ground Test
2. Disconnect ignition switch [33].
1. Test voltage between BOB terminals 20 and 6.
3. Using the HARNESS CONNECTOR TEST KIT (Part
2. Is battery voltage present?
No. HD-41404), test continuity between [33B] terminal 1
and ground.
a. Yes. Go to Test 3.
4. Is continuity present?
b. No. Repair open in (BK) wire.
a. Yes. Go to Test 3.
3. CAN High Circuit Continuity Test
b. No. Repair open in (BK/GN) ground wire.
1. Turn IGN OFF.
3. Ignition Switch Test
2. Test continuity between BOB terminal 18 and DLC [91A]
terminal 1.
1. Turn IGN ON.
2. Test resistance between [33A] terminals 1 and 2.
2-24 2013 Softail Diagnostics: Initial Diagnostics and Serial Data
HOME
3. Is resistance between 50-500 Ohms?
4. Is continuity present?
a. Yes. Go to Test 4.
a. Yes. Go to Test 9.
b. No. Replace the ignition switch.
b. No. Repair open in (BK/GN) wire.
4. Ignition Switch Accessory Test
9. CAN High Circuit Continuity Test
1. Turn IGN to ACC.
1. Test continuity between BOB terminal D2 and DLC [91A]
terminal 1 (W/R) wire.
2. Test resistance between [33A] terminals 1 and 2.
2. Is continuity present?
3. Is resistance between 400-1900 Ohms?
a. Yes. Go to Test 10.
a. Yes. Go to Test 5.
b. No. Repair open in (W/R) wire.
b. No. Replace ignition switch.
10. CAN Low Circuit Continuity Test
5. Ignition Switch Signal Test
1. Test continuity between BOB terminal E2 and [91A] ter-
1. Turn IGN OFF.
minal 3 (W/BK) wire.
2. Connect BREAKOUT BOX (Part No. HD-50390-1) and
2. Is continuity present?
BCM CABLE (Part No. HD-50390-2) to wire harness
a. Yes. Go to Test 11.
[242B], leaving [242A] disconnected.
b. No. Repair open in (W/BK) wire.
3. Verify BCM OVERLAY (Part No. HD-50390-2-P) is in
position on BOB.
11. BCM Voltage Test
4. Test continuity between [33B] terminal 2 (W/BE) wire and
1. Disconnect BCM power [259B].
BOB terminal C3.
2. Test voltage between [259B] terminal 1 and ground.
5. Is continuity present?
a. Yes. Go to Test 6.
3. Is battery voltage present?
a. Yes. Replace the BCM.
b. No. Repair open in (W/BE) wire.
b. No. Repair open in (R) wire.
6. Switch Signal Short to Ground Test
1. Test continuity between [33B] terminal 2 and ground.
LEFT HAND CONTROLS INOPERATIVE:
DTC U0141
2. Is continuity present?
a. Yes. Repair short to ground in (W/BE) wire.
PART NUMBER
TOOL NAME
b. No. Go to Test 7.
HD-41404
HARNESS CONNECTOR TEST KIT
7. Ignition Switch Signal Short to Voltage
Test
Table 2-9. Left Hand Controls Inoperative, DTC U0141
Diagnostic Faults
1. Disconnect [242B].
POSSIBLE CAUSES
2. Connect [242B] to BOB.
Open in CAN high circuit to the LHCM
3. Turn IGN ON.
Open in CAN low circuit to the LHCM
4. Test voltage between [33B] terminal 2 (W/BE) wire and
Open in LHCM battery power circuit
ground.
Open in LHCM ground circuit
5. Is voltage present?
a. Yes. Repair short to voltage in (W/BE) wire.
1. LHCM Voltage Test
b. No. Go to Test 8.
1. With IGN OFF, disconnect LHCM [24A].
2. Using HARNESS CONNECTOR TEST KIT (Part No. HD-
8. BCM Ground Test
41404), test voltage between LHCM [24A] terminal 1 and
1. Turn IGN OFF.
ground.
2. Connect [33].
3. Is battery voltage present?
a. Yes. Go to Test 2.
3. Test continuity between BOB terminal G4 (BK/GN) wire
and ground.
b. No. Repair open in (R/O) wire.
2. LHCM Test
1. Test voltage between [24A] terminals 1 and 2.
2013 Softail Diagnostics: Initial Diagnostics and Serial Data 2-25
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