Harley Davidson 2008 Touring Models. Electrical Diagnostics Manual — page 3
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AC Output Check
ed02029
1. See Figure 1-18. Test AC output.
a. Disconnect voltage regulator connector from alternator
stator wiring.
b. Connect an AC voltmeter across stator connector
sockets 1-2.
c. Run the engine at 2000 RPM. The AC output should
be 32-46 volts AC (approximately 16-23 per 1000
RPM).
d. Repeat test across stator sockets 2-3 and 3-1.
2. Compare test results to specifications.
a. If the output is below specifications, charging problem
could be a faulty rotor or stator.
b. If output is within spec, charging problem might be
faulty regulator. Replace as required.
3. Check the output again as previously described under
Current and Voltage Output Test.
Figure 1-18. Check Stator AC Voltage Output (Typical)
2008 Touring Diagnostics: Starting / Charging 1-25
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BATTERY TESTING
1.8
See Figure 1-19. The analyzer printer will provide you with a
GENERAL
printout including one of six possible test results:
Three different procedures may be performed to provide a
•
GOOD BATTERY - Return the battery to service.
good indicator of battery condition: a voltage test, a conduct-
ance test, or a load test.
•
GOOD-RECHARGE - Fully charge the battery and return
to service.
A battery may be tested, whether fully charged or not, via
conductance test. In order to perform a load test, however, the
•
CHARGE & RETEST - Fully charge the battery and retest.
battery must be fully charged.
•
REPLACE BATTERY - Replace the battery.
VOLTMETER TEST
•
BAD CELL-REPLACE - Replace the battery and retest.
The voltmeter test provides a general indicator of battery state
•
BATTERY NOISE - Remove surface charge from battery
of charge or condition. Check the voltage of the battery to verify
and retest.
that it is in a 100% fully charged condition. Refer to Table 1-5.
If the open circuit (disconnected) voltage reading is below
NOTES
12.6V, charge the battery and then recheck the voltage after
•
A REPLACE BATTERY test result may also mean a poor
the battery has set for one to two hours. If the voltage reading
connection between the battery cables and the vehicle.
is 12.7V or above, perform the LOAD TEST described in this
After disconnecting the battery cables from the battery,
section.
retest the battery using the out-of-vehicle test before
replacing.
Table 1-5. Voltmeter Test For Battery Charge Conditions
•
Connect the tester directly to the lead terminals of the
VOLTAGE (OCV)
STATE OF CHARGE
battery, and not the bolts.
12.7
100%
12.6
75%
ed02811
12.3
50%
12.0
25%
11.8
0%
CONDUCTANCE TEST
PART NUMBER
TOOL NAME
HD-48053
ADVANCED BATTERY CONDUCT-
ANCE AND ELECTRICAL SYSTEM
ANALYZER
Test the battery using the ADVANCED BATTERY CONDUCT-
ANCE AND ELECTRICAL SYSTEM ANALYZER (Part No. HD-
48053). Perform a battery test as follows:
Figure 1-19. Battery Test Results Printout
1. Connect the HD-48053 analyzer leads to the vehicle bat-
tery lead terminal, not to bolt or wire terminal.
NOTE
LOAD TEST
Connect the tester directly to the lead terminals of the battery,
To load test the battery, proceed as follows:
and not the bolts.
2. Follow the instructions in the analyzer instruction manual
to perform a battery test.
Disconnect negative (-) battery cable first. If positive (+)
The test results will include a decision on the battery condition
cable should contact ground with negative (-) cable con-
and the measured state of charge.
nected, the resulting sparks can cause a battery explosion,
which could result in death or serious injury. (00049a)
1. Remove battery from motorcycle.
2. Always fully charge the battery before testing or test
readings will be incorrect. Load testing a discharged bat-
tery can also result in permanent battery damage.
3. After charging, allow battery to stand for at least one hour
before testing.
1-26 2008 Touring Diagnostics: Starting / Charging
HOME
6. Install the battery in the motorcycle.
Turn battery load tester OFF before connecting tester
ed02876
cables to battery terminals. Connecting tester cables with
load tester ON can cause a spark and battery explosion,
which could result in death or serious injury. (00252a)
1
4. See Figure 1-20. Connect tester leads to battery posts
and place induction pickup over negative (black) cable.
NOTE
To avoid load tester and/or battery damage, do not leave the
load tester switch turned ON for more than 20 seconds.
5. Refer to Table 1-6. Load battery at 50% of CCA rating
using the load tester. Voltage reading after 15 seconds
should be 9.6V or more at 70° F (21° C).
2
Turn battery load tester OFF before disconnecting tester
cables to battery terminals. Disconnecting tester cables
with load tester ON can cause a spark and battery explo-
sion, which could result in death or serious injury. (00253a)
3
1. Load tester
Connect positive (+) battery cable first. If positive (+) cable
2. Induction pickup
should contact ground with negative (-) cable connected,
3. Battery
the resulting sparks can cause a battery explosion, which
could result in death or serious injury. (00068a)
Figure 1-20. Load Test Battery
Table 1-6. Battery Load Test
Do not over-tighten bolts on battery terminals. Use
recommended torque values. Over-tightening battery ter-
COLD CRANKING
100%
50%
minal bolts could result in damage to battery terminals.
AMPERAGE (CCA)
(00216a)
T
ouring models
300
150
2008 Touring Diagnostics: Starting / Charging 1-27
NOTES
1-28 2008 Touring Diagnostics: Starting / Charging
TABLE OF CONTENTS
SUBJECT
PAGE NO.
2.1 CHECKING FOR DIAGNOSTIC TROUBLE CODES
2-1
2.2 INITIAL DIAGNOSTIC CHECK: SPEEDOMETER
2-4
2.3 SPEEDOMETER SELF DIAGNOSTICS
2-11
2.4 SPEEDOMETER/TACHOMETER
2-13
2.5 BREAKOUT BOX: SPEEDOMETER/TACHOMETER
2-16
2.6 FUEL GAUGE
2-17
2.7 OIL, AIR AND VOLTMETER GAUGES
2-18
2.8 INDICATOR LIGHTS: ALL
2-20
2.9 DTC B1004, B1005
2-24
2.10 DTC B1006, B1007
2-28
2.11 DTC B1008
2-30
2.12 DTC U1016
2-32
2.13 DTC U1064, U1255
2-37
2.14 DTC U1300, U1301 OR BUS ER
2-42
HOME
CHECKING
FOR DIAGNOSTIC TROUBLE CODES
2.1
1. See Figure 2-3. After the check engine lamp turns off fol-
CHECK ENGINE LAMP
lowing the first four-second illumination period, one of
See Figure 2-1. To diagnose Electronic Control Module (ECM)
three events may occur:
system problems, begin by observing the behavior of the check
a. The lamp remains off. This indicates there are no
engine lamp (1).
current fault conditions or stored DTCs currently
NOTES
detected by the ECM.
•
See Figure 2-2. "Key ON" means that the Ignition Switch
b. The lamp remains off for only four seconds and then
is turned to IGNITION and the Engine Stop Switch is set
illuminates for an eight-second period. This indicates
to RUN (although the engine is not running).
a DTC is stored, but no current DTC exists.
•
When the Ignition Switch is turned to IGNITION, the check
c. The lamp remains on beyond the eight-second period.
engine lamp will illuminate for approximately four seconds
This indicates a current DTC exists.
and then turn off.
2. See
2.1 CHECKING FOR DIAGNOSTIC TROUBLE
•
If the check engine lamp is not illuminated at Ignition ON,
CODES, Code Types which follows for a complete
the problem is likely to be an instrument failure. See
description of DTC formats.
2.2 INITIAL DIAGNOSTIC CHECK: SPEEDOMETER.
•
If the check engine lamp illuminates late
(after
20
NOTE
seconds), the problem is most likely a serial data bus
Some DTCs can only be fully diagnosed during actuation. For
failure. Test for Diagnostic Trouble Codes (DTCs) using
example, a problem with the ignition coil will be considered a
speedometer self diagnostics. See
2.2 INITIAL DIA-
current fault even after the problem is corrected, since the ECM
GNOSTIC CHECK: SPEEDOMETER.
will not know of its resolution until after the coil is exercised by
the vehicle start sequence. In this manner, there may some-
•
If the check engine lamp fails to turn off after the initial
times be a false indication of the current DTC.
four-second period, see
2.2 INITIAL DIAGNOSTIC
CHECK: SPEEDOMETER.
ed01553
8
3
1
2
11
1
11
60
40
50
70
30
50
40
80
30
90
20
60
MPH
RPM x100
20
100
10
70
10
110
0
120
0
80
9
IF
D
D
7
7
2
6
10
9
8
5
4
10
4
5
6
FLHT, FLTR & FLHX
FLHR
1.
Speedometer
7. Check engine lamp
2.
Security lamp (key icon)
8. Battery discharge lamp
3.
Tachometer
9. Sixth gear lamp
4.
Cruise lamp
10. ABS lamp
5.
Odometer/trip odometer/clock
11. Pursuit lamp
6.
Low fuel warning lamp
Figure 2-1. Speedometer
2008 Touring Diagnostics: Instruments 2-1
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1
2
3
1. All except FLHR models
2. All FLHR models (cover shown closed)
3. All FLHR models (cover shown open)
Figure 2-2. Ignition Switch (FLHX, FLHT/C/U, FLTR)
1. See Figure 2-3. After the security lamp turns off following
SECURITY LAMP
the first four-second illumination period, one of three
To diagnose TSM/HFSM system problems, begin by observing
events may occur:
the behavior of the security lamp.
a. The lamp remains off. This indicates there are no
NOTES
current fault conditions or stored DTCs currently
detected by the HFSM.
•
To provide an indication of HFSM DTCs, the security lamp
is enabled on HFSM models.
b. The lamp stays off for only four seconds and then
comes back on for an eight-second period. This
•
See Figure 2-2. "Key ON" means that the ignition switch
indicates a DTC is stored, but no current DTC exists.
is turned to IGNITION and the engine stop switch is set
to RUN (although the engine is not running).
c. The lamp remains on beyond the eight-second period.
This indicates a current DTC exists.
•
When the ignition switch is turned to IGNITION, the check
engine lamp will illuminate for approximately four seconds
2. See
2.1 CHECKING FOR DIAGNOSTIC TROUBLE
and then turn off.
CODES, Code Types which follows for a complete
•
If the check engine lamp is not illuminated at IGNITION
description of DTC formats.
ON, the problem is likely to be an instrument failure. See
2.2 INITIAL DIAGNOSTIC CHECK: SPEEDOMETER.
NOTE
Some DTCs can only be fully diagnosed during actuation. For
•
If the check engine lamp illuminates late
(after
20
example, a problem with the turn signals will be considered a
seconds), See
2.2 INITIAL DIAGNOSTIC CHECK:
current fault even after the problem is corrected, since the
SPEEDOMETER.
TSM/HFSM will not know of its resolution until after the turn
•
If the security lamp fails to turn OFF after the initial four-
signals are activated. In this manner, there may sometimes be
second period, a problem exists in the instrumentation.
a false indication of the current DTC.
See 2.2 INITIAL DIAGNOSTIC CHECK: SPEEDOMETER.
2-2 2008 Touring Diagnostics: Instruments
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ed01046
ON
4 Sec.
A
Lamp OFF: No Current or Historic DTCs
OFF
Key On
Lamp ON 8 Seconds:
Only Historic DTCs Exist
ON
4 Sec.
8 Sec.
B
Lamp OFF
OFF
4 Sec.
Key On
Lamp Remains ON: Current DTC*
ON
4 Sec.
C
OFF
4 Sec.
Key On
* Historic DTCs May Also Exist
Figure 2-3. Check Engine and Security Lamp Operation
It is important to note that historic DTCs may also be present
CODE TYPES
whenever the system indicates the existence of a current fault.
PART NUMBER
TOOL NAME
See 2.1 CHECKING FOR DIAGNOSTIC TROUBLE CODES,
Multiple Diagnostic Trouble Codes if multiple DTCs are found.
HD-44750
DIGITAL TECHNICIAN
Diagnostic charts are designed for use with current DTCs and
There are two types of DTCs: current and historic. If a DTC is
as a result they frequently suggest wire repair or part replace-
stored, it can be read using DIGITAL TECHNICIAN (Part
ment.
No. HD-44750) or speedometer self diagnostics. See
2.3 SPEEDOMETER SELF DIAGNOSTICS.
RETRIEVING DIAGNOSTIC TROUBLE
All DTCs reside in the memory of the ECM, TSM/TSSM/HFSM,
CODES
speedometer or tachometer until the code is cleared.
PART NUMBER
TOOL NAME
Current
HD-44750
DIGITAL TECHNICIAN
Current DTCs are those which presently disrupt motorcycle
The engine management system provides two levels of dia-
operation. See the appropriate flow charts for solutions.
gnostics.
Historic
•
The most sophisticated mode employs DIGITAL TECHNI-
If a particular problem happens to resolve itself, the active
CIAN (Part No. HD-44750), a computer-based diagnostic
status problem is dropped and it becomes a historic fault rather
package.
than a current fault. Historic DTCs are stored for a length of
•
The second mode requires using the speedometer self
time to assist in the diagnosis of intermittent faults.
diagnostics. See
2.3 SPEEDOMETER SELF DIA-
Historic DTCs are cleared after a total of 50 trips has elapsed.
GNOSTICS.
A trip consists of a start and run cycle. After the 50 trip retention
MULTIPLE DIAGNOSTIC TROUBLE CODES
period, the historic DTC is automatically erased from memory
providing no subsequent faults of the same type are detected
While it is possible for more than one fault to occur and set
in that period.
more than one DTC, there are several conditions which may
result in one fault setting multiple DTCs. For example, serial
DTCs can only be identified as historic using DIGITAL TECH-
data DTCs (DTC U1016, U1064, U1097, U1300 and U1301)
NICIAN (Part No. HD-44750), a computer-based diagnostic
may be accompanied by other DTCs. Always correct the serial
package.
data DTCs before resolving other DTCs.
For proper resolution of multiple DTCs, refer to Table 2-2.
2008 Touring Diagnostics: Instruments 2-3
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INITIAL DIAGNOSTIC CHECK:
SPEEDOMETER
2.2
and security lamp will illuminate for four seconds and then
GENERAL
(if parameters are normal) will go out.
•
Constant power is supplied to the speedometer through
•
To locate faulty circuits or other system problems, follow
terminal "5" of connector [39]. The speedometer turns on
the diagnostic flow charts and tests in this section. For a
when power is applied to terminal "1". The speedometer
systematic approach, always begin with 2.2 INITIAL DIA-
proceeds through an initialization sequence every time
GNOSTIC CHECK: SPEEDOMETER, Initial Diagnostics
power is removed and re-applied to terminal "6". The vis-
which follows. Read the general information and then work
ible part of this sequence is the check engine lamp (in
your way through the flow chart box by box.
"run" mode), security lamp, backlighting, odometer and
fuel level. Upon IGNITION ON, the check engine lamp
•
Loss of power on any of the four power inputs will change
speedometer behavior. Refer to Table 2-1.
Table 2-1. Speedometer Function Chart - Loss of Input
Terminal 5
Terminal 1 (IGN)
Terminal 6 (ACC)
Terminal 7 (GRD)
Terminal 8 and 11
(Constant)
(Trip Odometer
Reset Switch)
•
Security lamp
•
Will not "WOW".
•
Display will be
•
Display completely
•
No trip odometer
glows
dimly
•
Turn signals still functional.
non-functional in
non-functional.
reset switch func-
during 4-second
•
Speedometer will indicate
accessory and
•
Diagnostic absent.
tion.
bulb check.
vehicle speed (zero).
ignition modes.
•
Will not "WOW".
•
Security lamp still functions.
•
Security lamp
•
Check engine lamp and battery
still performs 4-
lamp non-functional.
second
bulb
•
Diagnostics absent.
check in ignition
mode.
Diagnostic Notes
INITIAL DIAGNOSTICS
If a numbered circle appears adjacent to a flow chart box, more
PART NUMBER
TOOL NAME
information is offered in the diagnostic notes. Many diagnostic
HD-42682
BREAKOUT BOX
notes contain supplemental information, descriptions of various
diagnostic tools or references to other parts of the manual
HD-46601
INSTRUMENT HARNESS ADAPTERS
where information on the location and removal of components
may be obtained.
Diagnostic Tips
•
If Speedometer reads "BUS Er" with the ignition switch
Circuit Diagram/Wire Harness Connector
turned to IGNITION (engine stop switch at RUN with the
Table
engine off), check data bus for an open or short to ground
When working through a flow chart, refer to the illustrations,
between data link connector [91A] terminal "3" and ECM
the associated circuit diagram and the wire harness connector
connector [78B] terminal "69", TSM/TSSM/HFSM con-
table as necessary. The wire harness connector table for each
nector [30B] terminal "3", speedometer connector [39B]
circuit diagram identifies the connector number, description,
terminal "2" or tachometer (if equipped) connector [108B]
type and general location.
terminal "2".
In order to perform most diagnostic routines, a Breakout Box
•
Check for an open data test terminal between data link
and a DVOM are required. See
2.5 BREAKOUT BOX:
connector [91A] terminal "3" and TSM/TSSM/HFSM con-
SPEEDOMETER/TACHOMETER.
nector [30B] terminal "3". With ignition switch turned to
IGNITION, serial data bus voltage should be typically 0.6-
To perform the circuit checks with any degree of efficiency, a
0.8 volts. The range of acceptable voltage is greater than
familiarity with the various wire connectors is also necessary.
0 and less than 7.0 volts.
•
To identify intermittents, wiggle instrument and/or vehicle
harness while performing steps in the Diagnostic Check
charts.
Diagnostic Notes
The reference number below correlates with the circled number
on the initial diagnostic check flow charts.
2-4 2008 Touring Diagnostics: Instruments
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1. Connect BREAKOUT BOX (Part No. HD-42682) and
All Speedometer diagnostic trouble codes are listed in
INSTRUMENT HARNESS ADAPTERS (Part No. HD- Table 2-2.
46601) between wire harness and speedometer.
Table 2-2. Speedometer/Tachometer Diagnostic Trouble Codes (DTC) Priority Chart
DTC
PRI-
FAULT CONDITION
SOLUTION
MODULE
ORITY
"BUS Er"
1
Serial data bus shorted low/open/high
2.14 DTC U1300, U1301 OR BUS ER
Speedometer/tacho-
meter
U1300
2
Serial data low
2.14 DTC U1300, U1301 OR BUS ER
Speedometer/tacho-
meter
U1301
3
Serial data high
2.14 DTC U1300, U1301 OR BUS ER
Speedometer/tacho-
meter
U1016
4
Loss of ECM serial data
2.12 DTC U1016
Speedometer/tacho-
meter
U1064
5
Loss of
TSM/TSSM/HFSM serial data.
2.13 DTC U1064, U1255
Speedometer/tacho-
meter
U1255
6
Missing response from other module
2.13 DTC U1064, U1255
Speedometer/tacho-
(TSM/TSSM/HFSM and/or ECM) at startup
meter
B1007
7
Ignition line overvoltage
2.10 DTC B1006, B1007
Speedometer/tacho-
meter
B1006
8
Accessory line overvoltage
2.10 DTC B1006, B1007
Speedometer/tacho-
meter
B1008
9
Reset switch closed
2.11 DTC B1008
Speedometer
B1004
10
Fuel level sending unit low
2.9 DTC B1004, B1005
Speedometer
B1005
11
Fuel level sending unit high/open
2.9 DTC B1004, B1005
Speedometer
(TSM), Turn Signal Security Module (TSSM) or Hands-Free
Other Diagnostic Trouble Codes
Security Module (HFSM).
See 3.10 INITIAL DIAGNOSTIC CHECK: TSM/HFSM for any
See 4.5 INITIAL DIAGNOSTIC CHECK: EFI for any diagnostic
diagnostic trouble codes related to the Turn Signal Module
trouble codes related to the Electronic Control Module (ECM).
2008 Touring Diagnostics: Instruments 2-5
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Radio
15A
em01170
[1A] [1B]
Instruments
Fuse
To
O
1
1
O
R/BK
ignition
[27A]
9
switch
Main to interconnect
[27B]
9
harness
LGN/V
13
13
LGN/V
1
2
3
12
[30B]
To
ignition
GY
1
2
3
12
[30A]
fuse
TSM/TSSM/HSFM
1
2
5
7
[39B]
1
2
5
7
[108B]
1
2
5
7
[39A]
1
2
5
7
[108A]
1
BK/GN
2
Speedometer
Tachometer
Data Link
LGN/V
3
Connector
GY
4
[91A]
Main to
[2B]
4
12
interconnect
[2A]
4
12
harness
9
[166B]
9
[166A]
69
[78B]
69
[78A]
ABS
(Optional)
To
battery
fuse
ECM
Figure 2-4. Diagnostic Check: FLHX, FLHT/C/U, FLTR
Table 2-3. Wire Harness Connectors
NO.
DESCRIPTION
MODEL
TYPE
LOCATION
[1]
Main to interconnect har-
FLHT/C
16-place Molex (Black)
Inner fairing - right radio support bracket
ness
FL
TR
16-place Molex (Black)
Inner fairing - below radio (right side)
[2]
Main to interconnect har-
FLHT/C
12-place Molex (Gray)
Inner fairing - left fairing support bracket
ness
FL
TR
12-place Molex (Gray)
Inner fairing - below radio (right side)
[27]
Radio
All
23-place Amp (T
yco)
Inner fairing - back of radio (right side)
[30]
TSM/HFSM
All
12-place Deutsch
Cavity in crossmember at rear of battery
box (under seat)
[39]
Speedometer
FLHT/C
12-place Packard
Inner fairing (back of speedometer)
FL
TR
12-place Packard
Under bezel (back of speedometer)
[78]
Electronic Control Module
All
73-place Packard
Under seat
(ECM)
[91]
Data link connector
All
4-place Deutsch
Under left side cover
2-6 2008 Touring Diagnostics: Instruments
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Table 2-3. Wire Harness Connectors
NO.
DESCRIPTION
MODEL
TYPE
LOCATION
[108]
T
achometer
FLHT/C
12-place Packard
Inner fairing (back of tachometer)
FLTR
12-place Packard
Under bezel (back of tachometer)
[166]
ABS module
All
20-place Molex
Under right side cover
em01171
1
2
3
12
[30B]
1
2
3
12
[30A]
TSM/TSSM/HSFM
To
1
2
5
7
[39B]
ignition
GY
fuse
1
2
5
7
[39A]
Speedometer
1
To
BK/GN
2
BN/GY
battery
15A
Data Link
fuse
Instruments
LGN/V
3
Connector
To
Fuse
GY
4
ignition
O
O
relay
[91A]
9
[166B]
1
2
3
5
[20B]
9
[166A]
69
[78B]
[78A]
69
ABS
(Optional)
ECM
Figure 2-5. Diagnostic Check: FLHR/C/S
2008 Touring Diagnostics: Instruments 2-7
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Table 2-4. Wire Harness Connectors
NO.
DESCRIPTION
TYPE
LOCATION
[20]
Console harness
16-place Molex
Under seat
[30]
TSM/TSSM/HFSM
12-place Deutsch
Cavity in crossmember at rear of bat-
tery box (under seat)
[39]
Speedometer
12-place Mini-Deutsch
Under console (back of speedometer)
[78]
Electronic Control Module (ECM)
73-place Packard
Under seat
[91]
Data link connector
4-place Deutsch
Under left side cover
[166]
ABS module
20-place Molex
Under right side cover
2-8 2008 Touring Diagnostics: Instruments
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Diagnostic Check (Part 1 of 2)
Does Engine
start?
NO
NO
YES
YES
Starts, then stalls.
Cranks, but will not start.
Engine will not crank.
Starts and runs.
Check for DTCs. See
Section 2.3
See Section 4.10 ENGINE
See Section 4.12 STARTS,
See Section 1.2 STARTING
SPEEDOMETER
CRANKS, BUT WILL NOT
THEN STALLS.
SYSTEM DIAGNOSIS.
SELF DIAGNOSTICS
START.
Codes found?
YES
NO
Unable to enter diagnostic mode.
With Ignition Switch OFF, press and
Refer to applicable DTC priority chart.
release Trip Odometer Reset Switch.
Codes are listed by priority.
Does odometer display appear with
display backlighting?
NO
YES
Check for continuity to Ground on terminal “7” of
1
Speedometer. Wiggle harness during continuity check.
STOP
Continuity present?
YES
Go to Diagnostic
NO
Check (Part 2 of 2).
Check for battery voltage at
terminal “5” of Speedometer
Locate and repair open
while wiggling harness.
between terminal “7”
Battery voltage continuously
and Ground.
present?
YES
NO
With connector [39] disconnected from
Speedometer, check continuity (with ignition
switch OFF) between terminals “8” and “11”
Locate and repair open
on Breakout Box.
between terminal “5” and
Continuity present when Trip Odometer Reset
Battery Fuse.
Switch is depressed and infinity when
released?
NO
YES
Replace Trip Odometer
Replace Speedometer.
fc01085_en
Reset Switch.
2008 Touring Diagnostics: Instruments 2-9
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Diagnostic Check (Part 2 of 2)
Continued from Diagnostic Check (Part 1 of 2).
Perform “WOW” test. See Section 2.3 SPEEDOMETER SELF
DIAGNOSTICS.
The following features should be functional:
1) backlight should illuminate
2) needle should sweep its full range of motion
3) LED’s that should illuminate:
• check engine
• battery
• security
• low fuel
• sixth gear
Are all features functional?
YES
NO
With Ignition Switch turned to
Turn Ignition Switch
IGNITION, check for battery voltage
to ACCESS.
at terminal “1” of Breakout Box.
Is backlight present?
Battery voltage present?
YES
NO
YES
NO
Check for battery voltage at
Is Instrument
Is problem intermittent?
Breakout Box terminal “6”.
Replace Speedometer.
Fuse good?
Battery voltage present?
YES
NO
YES
NO
Is Accessory Fuse
Replace Speedometer.
good?
Locate and repair open
Locate and repair
on (O) wire between
source of fault.
terminal “1” of connector
Replace Instrument
[39] and Instrument Fuse.
Fuse.
YES
NO
Locate and repair open on (O/W)
Locate and repair source
wire between terminal “6” of
of fault.
connector [39] and Accessory Fuse.
Replace Accessory Fuse.
YES
YES
NO
Repeat Diagnostic Check
Intermittent vehicle speed
Tachometer Inoperative
while wiggling harnesses.
indication.
(no engine speed).
Intermittent present?
Remove and inspect Vehicle
Speed Sensor (VSS).
See Tachometer
Debris present?
Inoperative (Part 1 of 2).
YES
NO
YES
NO
Locate and repair
No trouble found.
intermittent.
Check for damaged wiring/
loose connection between
Remove debris.
VSS and Electronic Control
Reinstall VSS.
Module (ECM).
Is wiring damage/loose
connection present?
YES
NO
Locate and repair
Replace Speedometer.
source of fault.
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2-10 2008 Touring Diagnostics: Instruments
HOME
SPEEDOMETER SELF DIAGNOSTICS
2.3
is non-functional, see 2.2 INITIAL DIAGNOSTIC CHECK:
GENERAL
SPEEDOMETER.
The speedometer is capable of displaying and clearing
speedometer, tachometer, TSM/TSSM/HFSM, and ECM Dia-
Diagnostic Notes
gnostic Trouble Codes (DTCs) (diagnostic mode).
Each reference number below correlates to a circled number
on the flow chart(s).
DIAGNOSTICS
1. To exit diagnostic mode, turn ignition switch OFF.
Diagnostic Tips
2. To clear DTCs for the selected module:
•
For a quick check of speedometer function, a "WOW" test
a. Press and hold the trip odometer reset switch for more
can be performed. Press and hold trip odometer reset
than 5 seconds to display available modules, release.
switch (Figure 2-1), then turn Ignition Switch ON. Release
trip odometer reset switch. Background lighting should
b. Press the trip odometer reset switch to choose the
illuminate, gauge needle should sweep its full range of
module.
motion, and indicator lamps (check engine, low fuel, bat-
tery and security) should illuminate.
c. Press and hold the trip odometer reset switch for more
than 5 seconds to display the DTC, release.
•
If instrument module fails "WOW" test, check for battery,
ground, ignition, trip odometer reset switch and accessory
d. Press and hold the trip odometer reset switch for more
wiring to speedometer. If any feature in the speedometer
than 5 seconds to clear the DTCs for the selected
module.
2008 Touring Diagnostics: Instruments 2-11
HOME
Speedometer Self Diagnostics
While holding Trip Odometer Reset Switch in, turn
1
Ignition Switch to IGNITION.
Make sure Engine Stop Switch is in RUN position.
Release Trip Odometer
Reset Switch.
Does “diag” appear?
YES
NO
Press and release
See 2.2 INITIAL
Trip Odometer
DIAGNOSTIC CHECK:
Reset Switch.
To display DTCs for
SPEEDOMETER.
“PSSPtb” appears?
the Electronic Control
Module (ECM), press
”P” flashing.
and hold Trip
Odometer Reset
Switch for more than 5
To choose Turn Signal
seconds.
Module/Turn Signal
Security Module/
Hands Free Security
Device
Module (TSM/TSSM/
response?
HFSM), press and
NO
release trip odometer
reset switch.
To display DTCs for
TSM/TSSM/HFSM,
“no rsp” displayed.
press and Trip
See applicable code from other
”S” flashing.
modules. Models not equipped
Odometer Reset
with a Tachometer or ABS will
Switch for more than
To choose
display “no rsp” normally.
5 seconds.
Speedometer,
If “no rsp” displayed on
press and release the
Odometer on Tachometer
Trip Odometer Reset
equipped vehicle, see 2.4
Switch.
SPEEDOMETER/
To display DTCs for
TACHOMETER.
Speedometer, press
If “no rsp” displayed on
and hold Trip
YES
Odometer on ABS equipped
”SP” flashing.
Odometer Reset
vehicle, see 6.1 ANTILOCK
Switch for more than
BRAKE SYSTEM (ABS)
5 seconds.
GENERAL INFORMATION.
To choose Tachometer,
DTC
press and release Trip
“none” displayed.
2
Odometer Reset Switch.
displayed.
To display DTCs for
Tachometer, press
and hold Trip
”t” flashing.
Press and release
Odometer Reset
Trip Odometer
Switch for more than
Press and release
To choose Anti-Lock
Reset Switch.
5 seconds.
Trip Odometer
Brake System (ABS),
Are more DTCs
Reset Switch.
press and release Trip
displayed?
Part number of
Odometer Reset
module will be
Switch.
NO
To display DTCs for
displayed.
YES
ABS (if equipped),
press and hold Trip
”b” flashing.
“end” displayed.
Odometer Reset
To clear all DTCs for selected
Switch for more than
module press and hold Trip
5 seconds.
Odometer Reset Switch for more
To choose ECM, press
than 5 seconds.
and release Trip Odometer
If DTCs are not to be cleared,
Reset Switch.
Press and release Trip Odometer
To exit, turn Ignition Switch
Reset Switch. Part number of
to OFF.
module will be displayed.
Press and release Trip Odometer
Reset Switch again to continue to
next module.
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2-12 2008 Touring Diagnostics: Instruments
HOME
SPEEDOMETER/TACHOMETER
2.4
The vehicle speed serial data is also transmitted to the
GENERAL
TSM/TSSM/HFSM for turn signal cancellation.
NOTE
ODOMETER THEORY OF OPERATION
Some icons may illuminate during "WOW" test though the icon
has no functionality on that vehicle.
The odometer mileage is permanently stored and will not be
lost when electrical power is turned off or disconnected. The
The speedometer consists of a speedometer display and sev-
trip odometer reset switch allows switching between the odo-
eral icons. The icons include the sixth gear indicator, check
meter, trip odometer A and trip odometer B displays.
engine, low fuel, battery, security and cruise enabled lamps.
To zero the trip odometer, have the desired trip odometer dis-
Trip Odometer Reset Switch
play visible and press and hold the trip odometer reset switch.
Pressing the trip odometer reset switch provides the following
The trip odometer mileage will be displayed for 2-3 seconds
capabilities:
and then the trip mileage will return to zero miles.
•
Change the odometer display between mileage, trip A and
The odometer can display six numbers to indicate a maximum
trip B values (press and immediately release).
of 999999 miles/kilometers. The trip odometers can display six
numbers with a tenth of a mile accuracy for a maximum of
•
Reset an individual trip odometer (press and hold 2-3
99999.9 miles/kilometers.
seconds).
The speedometer indicates when vehicle is in sixth gear.
•
Gain access to the diagnostic mode, clear DTCs, and exit
Selection of sixth gear is inferred as the system identifies when
diagnostic mode. See 2.3 SPEEDOMETER SELF DIA-
correct RPM and vehicle speed coincide.
GNOSTICS.
Job/Time Code Values
•
Display odometer while ignition switch is OFF. Press and
hold trip odometer reset switch while ignition switch is OFF
Dealership technicians filing warranty claims should use the
and odometer mileage will be displayed.
job/time code values in Digital Technician.
•
On models with dual scale speedometers, toggle between
TACHOMETER THEORY OF OPERATION
miles/kilometers on odometer and trip odometer display.
To toggle display, turn ignition switch ON. Press and hold
The tachometer receives serial data from the ECM. The
trip odometer reset switch while odometer is displayed.
tachometer interprets the serial data and converts it into
Release trip odometer reset switch when change is noted.
tachometer needle movement.
(If trip odometer reset switch is held while trip odometer
DIAGNOSTICS
is displayed, trip odometer will reset.)
PART NUMBER
TOOL NAME
•
The trip odometer reset switch is also used to set or select
the clock located in the odometer. The clock function for
HD-41404-B
HARNESS CONNECTOR TEST KIT
the odometer is not present on vehicles equipped with the
HD-42682
BREAKOUT BOX
Advanced Audio System. Detailed instructions for setting
the clock are located in the Owner's Manual.
HD-46601
INSTRUMENT HARNESS ADAPTERS
SPEEDOMETER THEORY OF OPERATION
Diagnostic Notes
The speedometer circuit consists of a vehicle speed sensor,
Each reference number below correlates to a circled number
the ECM, trip odometer reset switch and the speedometer.
on the flow chart(s).
The vehicle speed sensor is mounted on the rear of the trans-
1. If problems are intermittent, wiggle harness while per-
mission case below the starter motor assembly. The sensor
forming tests.
circuitry is that of a Hall-effect sensor triggered by the gear
teeth of 5th gear on the transmission mainshaft.
2. Connect BREAKOUT BOX (Part No. HD-42682) and
INSTRUMENT HARNESS ADAPTERS (Part No. HD-
The output from the sensor is a series of pulses that are inter-
46601) between wire harness and tachometer.
preted by the ECM circuitry, converted into serial data then
sent to the speedometer to control the position of the speedo-
3. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
meter needle and the odometer liquid crystal display (LCD).
41404-B), black pin probe and patch cord.
2008 Touring Diagnostics: Instruments 2-13
HOME
Tachometer Inoperative (Part 1 of 2)
Perform “WOW” test. See 2.3 SPEEDOMETER
SELF DIAGNOSTICS.
The following features should be functional:
1) backlight should illuminate
2) needle should sweep its full range of motion
1
3) LED’s should illuminate:
• cruise (although not cruise equipped on some models)
• abs (although not abs equipped on some models)
• pursuit (although may not be a police vehicle)
Are all features functional?
YES
NO
Check for battery voltage at
Is problem intermittent?
2
terminal “1” of Breakout Box.
Is battery voltage present?
YES
NO
Repeat Diagnostic
YES
NO
No trouble
Check while wiggling
found.
harnesses.
Check for continuity between
Breakout Box terminal “2” and
Is Instrument
3
terminal “13" of connector [1A].
Fuse good?
Is continuity present?
YES
NO
Locate and repair
Locate and repair
open in (O) wire
source of fault.
YES
NO
between terminal “1”
Replace
of connector [108] and
Instrument Fuse.
Instrument Fuse.
Locate and repair open
STOP
on (LGN/V) wire.
Go to Tachometer
Inoperative (Part 2 of 2).
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2-14 2008 Touring Diagnostics: Instruments
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Tachometer Inoperative (Part 2 of 2)
Continued from Tachometer Inoperative (Part 1 of 2).
Check for continuity to ground on Breakout Box
terminal “7". Wiggle harness during continuity check.
Is continuity present?
YES
NO
Check for battery voltage
Locate and repair open on
at Breakout Box terminal “5”
(BK/GN) wire between
while wiggling harness.
terminal “7" of connector [108]
Is battery voltage
and Ground.
continuously present?
YES
NO
Locate and repair open
Check for battery voltage at
on (BN/GY) wire
Breakout Box terminal “6.”
between terminal “5” of
Is battery voltage present?
connector [108] and
Battery Fuse.
YES
NO
Locate and repair open on (O/W)
Replace Tachometer.
wire between terminal “6” of connector
[108] and Accessory Fuse.
fc01089_en
2008 Touring Diagnostics: Instruments 2-15
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