Harley Davidson 2005 touring models. Service repair manual — page 52
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Test 5.20 (Part 2 of 2)
IAT SENSOR: DTC P0112, P0113
Continued from
Test 5.20 (Part 1 of 2).
Disconnect IAT sensor connector [89B] and
examine for damage. Connector OK?
YES
NO
Using a DVOM, measure the resistance
Repair
between IAT sensor connector [89B]
connector.
Terminal A and ECM terminal 7 on Breakout
Box. Resistance less than 1.0 ohm?
2
YES
NO
Using a DVOM, measure the resistance
Examine Lt GN/Y wire in
between IAT sensor connector [89B]
harness for open circuit
Terminal B and ECM terminal 26 on Break-
and repair.
2
out Box. Resistance less than 1.0 ohm?
YES
NO
Using a DVOM, measure the resistance
Examine BK/W wire in
between ECM terminal 7 and terminal 26 on
harness for open circuit
Breakout Box. Resistance greater
and repair.
than 1.0 megohm?
YES
NO
Using a DVOM, measure the resistance
Examine Lt GN/Y and
between ECM terminal 7 on Breakout Box
BK/W wires in harness
and ground. Resistance greater
for short between these
than 1.0 megohm?
two circuits and repair.
YES
NO
Remove IAT sensor and measure resistance
Examine harness for
across the terminals of the IAT sensor
short to ground and
3
directly. Again, with sensor at room tempera-
repair.
ture 60-90° F or 16-32° C), is resistance
between 2.0k ohms and 5.0k ohms?
At some point in the flow chart you
may be instructed to jump directly
to a the box with the bold asterisk.
YES
NO
Disregard the asterisk (but not the
instruction box) if your normal pro-
gression through the chart brings
Perform 5.8 WIGGLE TEST on steps
Replace
you to this location.
4
marked with a BOLD ASTERISK above to
IAT sensor.
locate intermittents. Repair as necessary.
Clear codes using speedometer self diagnostics.
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
Confirm proper operation with no check engine
lamp.
5-76
2005 Touring: Engine Management (EFI)
HOME
DTC P0117, P0118
5.21
GENERAL
DIAGNOSTICS
ET Sensor
Diagnostic Tips
The ECM supplies and monitors a voltage signal (terminal 6)
● Once the engine is started, the ET voltage should rise
to one side of the engine temperature sensor (ET sensor).
steadily.
The other side of the ET sensor is connected to a common
sensor ground (terminal 26) of the ECM.
● An intermittent may be caused by a poor connection,
The ET sensor is a thermistor device, which means that at a
rubbed through wire insulation or a wire broken inside
specific temperature it will have a specific resistance across
the insulation.
its terminals. As this resistance varies, so does the voltage
Check the following conditions:
(terminal 6).
● At high temperatures, the resistance of the sensor is very
● Poor connection: Inspect ECM and harness connector
low, which effectively lowers the signal voltage on termi-
[78] for backed out terminals, improper mating, broken
nal 6.
locks, improperly formed or damaged terminals, poor ter-
minal-to-wire connection and damaged harness.
● At low temperatures, the resistance is very high, allowing
the voltage to rise close to 5 volts.
● Perform 5.8 WIGGLE TEST to locate intermittents: If
The ECM monitors this voltage to compensate for various
connections and harness check out OK, use a DVOM to
operating conditions. The ECM also uses the sensor input as
check the engine temperature sensor voltage reading
a reference for determining IAC pintle position.
while moving related connectors and wiring harness. If
the failure is induced, the engine temperature sensor
voltage reading will change.
Table 5-31. Code Description
● Shifted sensor: Refer to Table 5-32. This table may be
DTC
DESCRIPTION
used to test the engine temperature sensor at various
temperature levels in order to evaluate the possibility of a
P0117
ET sensor voltage low
shifted
(out-of-calibration) sensor which may result in
P0118
ET sensor open/high
driveability problems.
NOTE
Table 5-32. ET Sensor Table
All voltage and resistance values are approximate (±20%).
Measure ET sensor resistance between ECM Terminal 6 and
TEMP °C
RESISTANCE
VOLTAGE
TEMP °F
system ground (ECM Terminal 26).
-20
28144
4.4
-4
Diagnostic Notes
-10
15873
4.0
14
0
9255
3.5
32
The reference numbers below correlate with the circled num-
bers on the Test 5.21 flow charts.
10
5571
3.0
50
20
3457
2.4
68
1. Connect BREAKOUT BOX (Part No. HD-43876) to EFI
wire harness only (leave ECM disconnected). See 5.7
25
2750
2.1
77
BREAKOUT BOX: EFI.
30
2205
1.8
86
2. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
40
1442
1.3 or 4.1*
104
41404A), gray pin probes and patch cords.
50
965
1.0 or 3.7*
122
3. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
60
661
3.3
140
41404A), gray socket probes and patch cords.
70
462
2.9
158
4. Replace ET sensor. See Touring Service Manual.
80
329
2.5
176
90
238
2.1
194
100
175
1.7
212
* Between 40-50°C the ECM changes scaling. Voltages for ECT
sensor will shift scales in that range. This provides proper sensor res-
olution for all temperatures.
2005 Touring: Engine Management (EFI)
5-77
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f1743s9s
ET
Sensor
A
B
[90A]
[90B]
A
B
To TP, IAT &
MAP Sensors
[78B]
6
26
[78A]
ECM
Figure 5-48. ET Sensor Circuit
Table 5-33. Wire Harness Connectors in Figure 5-48.
NO.
DESCRIPTION
TYPE
LOCATION
[78]
ECM
36-Place Packard
Under Right Side Cover
[90]
ET Sensor
2-Place Packard
Back of Front Cylinder (Left Side)
5-78
2005 Touring: Engine Management (EFI)
HOME
Test 5.21 (Part 1 of 2)
ET SENSOR: DTC P0117, P0118
Connect Breakout Box to connector [78B]
leaving ECM disconnected. With engine at
room temperature (60-90° F or 16-32° C),
1
use a DVOM to measure resistance across
terminals 6 and 26 on Breakout Box. If
engine is warm, refer to Table 5-32. Resis-
tance between 2.0k ohms and 5.0k ohms?
YES
NO
Connect ECM to Breakout Box.
Perform 5.8 WIGGLE TEST to check for
STOP
intermittents. Intermittents present?
Go to Test 5.21 (Part 2 of 2).
YES
NO
While wiggling harness, perform
Disconnect ET sensor connector [90].
steps marked by BOLD ASTER-
Turn ignition ON. Using a DVOM, mea-
ISKS under Test 5.21 (Part 2 of 2).
sure the voltage between
Repair as necessary.
terminal 6 (positive) and
terminal 26 (negative) on Breakout Box.
Voltage approximately 5 volts?
YES
NO.
NO.
Less than
Greater than
4.7 volts.
5.3 volts.
Replace ET sensor, clear codes and
road test. Did check engine lamp illu-
With ET sensor disconnected,
Unplug ECM leaving Breakout Box
minate and set DTC P0117 or
disconnect ECM connector [78B].
connected at vehicle harness.
P0118?
Measure resistance between
Measure voltage between
terminal 6 and terminals 10 or 28.
terminal 6 and terminals 10 or 28.
Resistance less than 1 megohm?
Voltage 0 volts?
YES
NO
YES
NO
YES
NO
Install original
System
Repair short to
Replace ECM.
Replace ECM.
Examine ET sig-
ET sensor,
OK.
ground on
Reprogram and
Reprogram and
nal wire (PK/Y) for
replace ECM, perform
PK/Y wire.
learn password.
learn password.
short to voltage
password learning
and repair.
and road test.
At some point in the flow chart you
may be instructed to jump directly
to a the box with the bold asterisk.
Disregard the asterisk (but not the
Clear codes using speedometer self diagnostics.
instruction box) if your normal pro-
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
gression through the chart brings
Confirm proper operation with no check engine
you to this location.
lamp.
2005 Touring: Engine Management (EFI)
5-79
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Test 5.21 (Part 2 of 2)
ET SENSOR: DTC P0117, P0118
Continued from
Test 5.21 (Part 1 of 2).
Disconnect ET sensor connector [90B] and
examine for damage. Connector OK?
YES
NO
Using a DVOM, measure the resistance
Repair
between ET sensor connector [90B]
connector.
Terminal A and ECM terminal 6 on Breakout
Box. Resistance less than 1.0 ohm?
2
YES
NO
Using a DVOM, measure the resistance
Examine PK/Y wire in
between ET sensor connector [90B]
harness for open circuit
Terminal B and ECM terminal 26 on Break-
and repair.
2
out Box. Resistance less than 1.0 ohm?
YES
NO
Using a DVOM, measure the resistance
Examine BK/W wire in
between ECM terminal 6 and terminal 26 on
harness for open circuit
Breakout Box. Resistance greater
and repair.
than 1.0 megohm?
YES
NO
Using a DVOM, measure the resistance
Examine PK/Y and
between ECM terminal 6 on Breakout Box
BK/W wires in harness
and ground. Resistance greater
for short between these
than 1.0 megohm?
two circuits and repair.
At some point in the flow chart
you may be instructed to jump
directly to a the box with the bold
asterisk. Disregard the asterisk
(but not the instruction box) if your
YES
NO
normal progression through the
chart brings you to this location.
Remove ET sensor and measure resistance
Examine harness for
3
across the terminals of the ET sensor
short to ground and
directly. Again, with sensor at room tempera-
repair.
ture (60-90° F or 16-32° C), is resistance
between 2.0k ohms and 5.0k ohms?
YES
NO
Perform 5.8 WIGGLE TEST on steps
Replace
4
marked with a BOLD ASTERISK above to
ET sensor.
Clear codes using speedometer self diagnostics.
locate intermittents. Repair as necessary.
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
Confirm proper operation with no check engine
lamp.
5-80
2005 Touring: Engine Management (EFI)
HOME
DTC P0122, P0123
5.22
Check for the following conditions:
GENERAL
● Poor Connection: Inspect ECM and harness connector
[78B] for backed out terminals, improper mating, broken
TP Sensor
locks, improperly formed or damaged terminals, poor ter-
minal-to-wire connection and damaged harness.
The ECM supplies a 5 volt signal (terminal 14) to the throttle
position sensor (TP sensor). The TP sensor sends a signal
●
Perform 5.8 WIGGLE TEST to locate intermittents: If
back to the ECM (terminal 24). The returned signal varies in
connections and harness check out OK, monitor TP sen-
voltage according to throttle position.
sor voltage using a DVOM while moving related connec-
tors and wiring harness. If the failure is induced, the TP
● At idle (closed throttle), the signal is typically in the range
sensor voltage reading will change.
of 0.20-0.80 volts.
● At wide open throttle, the signal is normally 4.0-4.9 volts.
●
TP sensor scaling: Observe the TP sensor voltage dis-
play while opening the throttle with engine stopped and
A code P0122 or P0123 will set if the TP sensor voltage sig-
ignition key ON. Display should vary from closed throttle
nal does not fall within the acceptable range.
TP sensor voltage (when throttle is closed) to greater
than 4.0 volts (when throttle is held wide open). As the
● Check TP sensor voltage reading with DVOM. If TP sen-
sor is equal to or greater than 3.8 volts then the system is
throttle is slowly moved, the voltage should change
gradually without spikes or low voltages being observed.
in
“clear flood” mode and engine will not start. While
spark is present, fuel is shut off. Problem can be
mechanical, such as stuck throttle cables.
Diagnostic Notes
The reference numbers below correlate with the circled num-
Table 5-34. Code Description
bers on the Test 5.22 flow charts.
DTC
DESCRIPTION
1.
Connect a BREAKOUT BOX
(Part No. HD-43876)
between EFI wire harness and ECM before measuring
P0122
TP sensor open/low
voltage. See 5.7 BREAKOUT BOX: EFI. If using a DVOM
to measure voltage, take reading across terminal 24
P0123
TP sensor high
(positive lead) and terminal 26 (negative lead) on Break-
out Box.
DIAGNOSTICS
2.
Replace TP sensor. See Touring Service Manual.
3.
Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404A), gray pin probes and patch cords.
Diagnostic Tips
The DVOM reads throttle position in volts. Voltage should
increase at a steady rate as the throttle is moved from idle to
wide open. A short to ground or open on the GY/V or R/W
wires also will result in a DTC P0122. A short to ground or
open on the R/W wire (+5v REF) sets multiple codes as
described below.
NOTE
The MAP, TP and VSS sensors are connected to the same
reference line (+5V Vref). If the reference line goes to ground
or open, multiple codes will be set (DTC P0107, P0108,
P0122, P0123, P0501, P0502). Start with the trouble code
having the lowest ranking value.
2005 Touring: Engine Management (EFI)
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s0452x9x
TP
sensor
A
B
C
[88A]
[88B]
A
B
C
To MAP, ET &
IAT sensors
To MAP
sensor
[78B]
14
24
26
[78A]
ECM
Figure 5-49. TP Sensor Circuit
Table 5-35. Wire Harness Connectors in Figure 5-49.
NO.
DESCRIPTION
TYPE
LOCATION
[78]
ECM
36-Place Packard
Under Right Side Cover
[88]
TP Sensor
3-Place Packard
Below Fuel Tank (Right Side)
5-82
2005 Touring: Engine Management (EFI)
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Test 5.22 (Part 1 of 2)
TP SENSOR: DTC P0122, P0123
With ignition key ON, measure TP sensor voltage while gradu-
ally opening throttle. Does voltage increase steadily
with no spikes or low voltages from 0.2-0.8 volts at idle
1
(closed throttle) to 4.0-4.9 volts at wide open throttle?
YES
NO
Voltage is
Low voltage
Check engine lamp ON
greater than
or spikes
continuously and
4.95 volts.
observed.
DTC P0122 or P0123
the only one set?
Unplug TP sensor connector [88B]
STOP
and measure voltage between
Terminal B (+) and Terminal A (-)
with ignition ON.
Go to Test 5.22 (Part 2 of 2).
Is reading 4.8-5.0 volts?
YES
NO
YES
NO
Replace ECM.
Perform 5.8 WIGGLE TEST
Measure
Reprogram and
to check for intermittents.
Disconnect ECM from
resistance
learn password.
Intermittents present?
Breakout Box. Check
between
resistance between ECM
TP sensor
terminal 24 on Breakout
connector [88B]
Box to chassis ground.
Terminal B to
Greater than 1 megohm?
ECM terminal 14
on Breakout Box.
Less than
YES
NO
1.0 ohm?
While wiggling harness,
Replace TP sensor, clear
2
start with the first step of
codes and road test.
YES
NO
Test 5.22 (Part 2 of 2)
Did check engine lamp
(marked by BOLD ASTER-
illuminate and set DTC
ISK). Repair as necessary.
P0122 or P0123?
Replace
Find short to
2
TP sensor.
ground on GY/V
signal wire.
YES
NO
YES
NO
Install original
System
TP sensor, replace ECM
OK.
(reprogram and learn
password) and road test.
Repair open
Repair open
in BK/W wire.
in R/W wire.
At some point in the flow chart you
may be instructed to jump directly
to a the box with the bold asterisk.
Disregard the asterisk (but not the
Clear codes using speedometer self diagnostics.
instruction box) if your normal pro-
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
gression through the chart brings
Confirm proper operation with no check engine
you to this location.
lamp.
2005 Touring: Engine Management (EFI)
5-83
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Test 5.22 (Part 2 of 2)
TP SENSOR: DTC P0122, P0123
Continued from Test 5.22 (Part 1 of 2).
With ignition key OFF, disconnect ECM connector [78B]. Turn
ignition key ON. Voltage greater than 0 volts across terminal 24
and terminal 26 on Breakout Box?
YES
NO
Repair short
Measure resistance between
between GY/V signal
ECM terminal 24 on Breakout Box and
wire and 12 volts.
TP sensor connector [88B] Terminal C.
Less than 0.5 ohm?
3
YES
NO
Measure resistance from TP
Repair open
sensor connector [88B]
GY/V
Terminal C to Terminal B.
signal wire.
Less than 1.0 megohm?
3
YES
NO
Repair short
Replace
between R/W and
TP sensor.
2
GY/V signal wire.
At some point in the flow chart you
may be instructed to jump directly
Clear codes using speedometer self diagnostics.
to a the box with the bold asterisk.
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
Disregard the asterisk (but not the
Confirm proper operation with no check engine
instruction box) if your normal pro-
lamp.
gression through the chart brings
you to this location.
5-84
2005 Touring: Engine Management (EFI)
HOME
DTC P0261, P0262, P0263, P0264
5.23
GENERAL
s0472x9x
Fuel Injectors
The fuel injectors are solenoids that allow pressurized fuel
into the intake tract. The injectors are timed to the engine
cycle and triggered sequentially. The power for the injectors
comes from the system relay. The system relay also provides
power for the fuel pump and the ignition coil. The ECM pro-
vides the path to ground to trigger the injectors.
NOTE
ECM fuse and system relay failures or wiring harness prob-
lems will cause 12 volt power to be lost to both injectors, igni-
Figure 5-50. Fuel Injector Connector
tion coils and fuel pump.
HD34730-2C
Table 5-36. Code Description
DTC
DESCRIPTION
P0261
Front injector open/low
P0262
Front injector high
P0263
Rear injector open/low
P0264
Rear injector high
Figure 5-51. Fuel Injector Test Lamp
(Part No. HD-34730-2C)
DIAGNOSTICS
Diagnostic Notes
The reference numbers below correlate with the circled num-
bers on the Test 5.23 flow charts.
1. See Touring Service Manual for all service information.
2. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404A), purple pin probe and patch cord.
3. Connect a BREAKOUT BOX
(Part No. HD-43876)
between EFI wire harness and ECM. See 5.7 BREAK-
OUT BOX: EFI.
2005 Touring: Engine Management (EFI)
5-85
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f2208h8x
[62B]
System relay
Y/GN
[78A]
[78B]
BE/GY
GN/O
W/BK
[13A] [13B]
Fuel pump
O/GY
System relay
GN/O
Y/GN
15 amp
fuel pump
W/Y
fuse
[141B] [141A]
[84B] [84A]
BK
Y/GN
Power gnd.
Coil R
Y/BE
[85B] [85A]
GY/BE
Ignition
Switch power
Y/BE
coil
BE/O
ECM
W/BK
[83B] [83A]
Inj. R
GN/GY
BE/GY
+
-
15 amp
Inj. F
W/Y
Battery
ECM fuse
R
BK
40 Amp
R
R
Maxi Fuse
R/BK
12
12
BK
11
11
DCBA
10
10
[33B]
Ion sense
9
9
[33A]
Power gnd.
15 amp
8
8
Coil F
BE/O
7
7
IGN fuse
6
6
Ignition
5
5
GY
Constant power
switch
4
4
3
3
2
2
W/BK
1
1
12 11 10 9 8 7 6 5 4 3
2
1
[1B]
12 11 10 9 8 7 6 5 4 3
2
1
[1A]
[8B] [8A]
BK
12 11 10 9 8 7 6 5 4 3
2
1
[22A]
BK
12 11 10 9 8 7 6 5 4 3
2
1
[22B]
Engine stop
switch
Figure 5-52. Battery Voltage Circuit (FLTR, FLHT/C/U)
Table 5-37. Wire Harness Connectors in Figure 5-52.
NO.
DESCRIPTION
TYPE
LOCATION
[1]
Main to Interconnect Harness
12-Place Deutsch (Black)
Inner Fairing (Right Fairing Bracket)
[8]
Main to EFI Harness
12-Place Deutsch (Gray)
Under Right Side Cover
[22]
Right Handlebar Switches
12-Place Deutsch (Black)
Inner Fairing (Right Fairing Support Brace)
[33]
Ignition/Light Key Switch
4-Place Packard
Inner Fairing (Top Fork Bracket)
[78]
ECM
36-Place Packard
Under Right Side Cover
[83]
Ignition Coil
4-Place Packard
Below Fuel Tank (Left Side)
[84]
Front Injector
2-Place Packard
Below Fuel Tank (Left Side)
[85]
Rear Injector
2-Place Packard
Below Fuel Tank (Left Side)
5-86
2005 Touring: Engine Management (EFI)
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f2208m8x
[62B]
System relay
Y/GN
[78A]
[78B]
BE/GY
GN/O
W/BK
Fuel pump
Y/GN
Y/GN
15 amp
GN/O
System relay
fuel pump
W/Y
fuse
[141B] [141A]
[84B] [84A]
BK
Y/GN
Power gnd.
Coil R
Y/BE
[85B] [85A]
GY/BE
Ignition
Switch power
Y/BE
coil
BE/O
ECM
W/BK
[83B] [83A]
BE/GY
Inj. R
GN/GY
15 amp
+
-
W/Y
ECM fuse
Inj. F
Battery
R
BK
R
40 Amp
R
R/BK
Maxi Fuse
12
12
BK
11
11
I B A
10
10
[33B]
Ion sense
9
9
[33A]
Power gnd.
8
8
15 amp
Coil F
BE/O
7
7
IGN fuse
6
6
Ignition
5
5
GY
Constant power
switch
4
4
3
3
2
2
W/BK
1
1
12 11 10 9 8 7
6543
2
1
[22A]
12 11 10 9 8 7
6543
2
1
[22B]
[8B] [8A]
12-Place on
FLHP Only
BK
Engine stop
BK
switch
Figure 5-53. Battery Voltage Circuit (FLHR/C/S)
Table 5-38. Wire Harness Connectors in Figure 5-53.
NO.
DESCRIPTION
TYPE
LOCATION
[8]
Main to EFI Harness
12-Place Deutsch (Gray)
Under Right Side Cover
[22]
Right Handlebar Switches
12-Place Deutsch (Black)
Inside Headlamp Nacelle
[33]
Ignition/Light Key Switch
3-Place Packard
Under Console
[78]
ECM
36-Place Packard
Under Right Side Cover
[83]
Ignition Coil
4-Place Packard
Below Fuel Tank (Left Side)
[84]
Front Injector
2-Place Packard
Below Fuel Tank (Left Side)
[85]
Rear Injector
2-Place Packard
Below Fuel Tank (Left Side)
2005 Touring: Engine Management (EFI)
5-87
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Test 5.23 (Part 1 of 3)
FUEL INJECTORS: DTC P0261, P0262, P0263, P0264
Is wire bail on connector securely
1
attached to the fuel injector?
YES
NO
See Figure 5-51. Using Fuel
Reconnect.
Injector Test Lamp, crank
engine. Does lamp flash?
YES
NO
Recheck connections.
Check Terminal A (Y/GN wire)
Perform 5.8 WIGGLE TEST
on injector connector to ground.
to check for intermittents.
Voltage equivalent to
Intermittents present?
battery voltage for 2 seconds
after key ON?
2
YES
NO
YES
NO
Repair
Measure resistance of
Check for 12 volts at terminal 87 of sys-
intermittent.
2
suspect injector across
tem relay during first 2 seconds after
STOP
injector terminals.
key ON. Correct voltage present?
Resistance
10.0-25.0 ohms?
Go to Test 5.23 (Part 2 of 3).
YES
NO
YES
NO
Check for loose
Replace
or corroded terminals
1
injector.
System relay OK. Measure
in harness.
resistance between terminal 87 of
STOP
system relay and Terminal A
(Y/GN wire) at injector connector.
Resistance less than 0.5 ohm?
Go to Test 5.23
(Part 3 of 3).
YES
NO
Perform 5.8 WIGGLE TEST
Find and repair
to check for intermittents.
bad connection
Repair as necessary.
or open wire.
Clear codes using speedometer self diagnostics.
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
Confirm proper operation with no check engine
lamp.
5-88
2005 Touring: Engine Management (EFI)
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Test 5.23 (Part 2 of 3)
FUEL INJECTORS: DTC P0261, P0262, P0263, P0264
FRONT INJECTOR: DTC P0261 or P0262.
REAR INJECTOR: DTC P0263 or P0264.
2
2
Measure resistance between Breakout Box terminal 21
Measure resistance between Breakout Box terminal 19
3
(W/Y wire) and Terminal B of front injector connector
(GN/GY wire) and Terminal B of rear injector connector
3
[84B].
[85B].
Resistance
less than 0.5 ohm?
YES
NO
Check for continuity between terminal
10 and ground.
Repair open or
poor connection.
Front injector codes: Check continuity
NO
between terminal 21 and terminal 10.
or
Rear injector codes: Check continu-
Repair open
ity between terminal 19 and terminal
10.
Continuity present?
YES
NO
Repair short
Check for voltage with key on.
to ground.
Front injector codes: Check
Breakout Box terminal 21.
Rear injector codes: Check
Breakout Box terminal 19.
Voltage present after 2 seconds?
YES
NO
Repair short
Replace ECM. Reprogram
to voltage.
and learn password.
Clear codes using speedometer self diagnostics.
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
Confirm proper operation with no check engine
lamp.
2005 Touring: Engine Management (EFI)
5-89
HOME
Test 5.23 (Part 3 of 3)
FUEL INJECTORS: DTC P0261, P0262, P0263, P0264
Continued from Test 5.23 (Part 1 of 3).
Check for 12 volts at terminal 30 of the system relay.
Correct voltage present?
YES
NO
Check for 12 volts at terminal 86
Find and repair open on
3
of the system relay.
BE/GY wire between
Correct voltage present?
fuse and relay.
YES
NO
Measure resistance between
See 5.11 NO ECM
terminal 86 of the system
POWER.
relay and ECM terminal 13 on
Breakout Box.
Resistance less than 0.5 ohm?
YES
NO
Measure resistance between
Find and repair
terminal 85 of the system relay
open on W/BK
and ECM terminal 4 on Break-
wire.
out Box.
Resistance less than 0.5 ohm?
YES
NO
Install known good relay.
Find and repair
Does fuel pump run for first
open on GN/O
2 seconds after key ON?
wire.
YES
NO
Replace
Reinstall original relay.
relay
Replace ECM. Reprogram
Clear codes using speedometer self diagnostics.
and learn password.
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
Confirm proper operation with no check engine
lamp.
5-90
2005 Touring: Engine Management (EFI)
HOME
DTC P0373, P0374
5.24
GENERAL
f2217x8x
Socket Screw
CKP Sensor
If the crank position sensor (CKP sensor) signal is weak or
absent, diagnostic trouble codes P0373 or P0374 will be set.
NOTE
If signal is not detected or cannot synchronize (DTC P0374),
engine will not start.
Table 5-39. Code Description
DTC
DESCRIPTION
P0373
CKP sensor intermittent
P0374
CKP sensor synch error
Figure 5-54. Crankshaft Position Sensor
DIAGNOSTICS
f2256x8x
Diagnostic Tips
● Engine must be cranked for more than five seconds with-
out CKP signal to set code.
Diagnostic Notes
The reference numbers below correlate with the circled num-
bers on the Test 5.24 flow chart.
1. Connect BREAKOUT BOX (Part No. HD-43876) to ECM
wire harness only (leave ECM disconnected). See 5.7
BREAKOUT BOX: EFI.
2. One megohm is very high resistance. Some meters will
Crankshaft
read ∞, OL, etc.
Position Sensor
Connector [79]
3. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
Under Voltage Regulator
41404A), brown socket probes and patch cords.
4. For testing purposes, install sensor without running wir-
Figure 5-55. Voltage Regulator (Left Side View)
ing along normal path. Disconnect and route wiring prop-
erly if system is now OK.
2005 Touring: Engine Management (EFI)
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s0453x9x
CKP
sensor
1
2
[79A]
[79B]
1
2
[78B]
10
12
28
30
[78A]
ECM
Figure 5-56. CKP Circuit
Table 5-40. Wire Harness Connectors in Figure 5-56.
NO.
DESCRIPTION
TYPE
LOCATION
[78]
ECM
36-Place Packard
Under Right Side Cover
[79]
CKP Sensor
2-Place Mini-Deutsch
Under Right Side Cover
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2005 Touring: Engine Management (EFI)
HOME
Test 5.24
CKP SENSOR: DTC P0373, P0374
Connect Breakout Box to harness only,
1
leaving ECM disconnected.
Measure resistance between terminals 30 and 28
and between terminals 12 and 28 on Breakout Box.
2
Resistance more than 1 megohm?
YES
NO
Check for intermittent connection, pinched
Disconnect connector [79]. Leaving
or damaged wires, and loose CKP sensor
ECM disconnected, measure resistance
fasteners. Conditions found?
between terminals 12 and 28 and
terminals 30 and 28 on Breakout Box.
Continuity to ground
(less than 1 megohm resistance)?
YES
NO
Repair as
Connect DVOM to terminals 12 and 30
necessary.
on Breakout Box.
Set DVOM to AC volts and crank engine.
YES
NO
Does DVOM read 1 VAC minimum
during cranking?
Repair short to
Replace
ground on R or
CKP sensor.
BK wire between
See Touring Ser-
YES
NO
connectors [78B]
vice Manual.
and [79B].
With DVOM still connected, check for inter-
Connect DVOM at Terminals 1
mittents using 5.8 WIGGLE TEST. Intermit-
3
and 2 of connector [79A].
tents present?
Does DVOM read 1 VAC
minimum while cranking?
YES
NO
YES
NO
Repair as
Install known
necessary.
good CKP sen-
sor. Clear codes
Check for continuity between
Replace CKP sen-
sor. See Touring
and retest. DTC
Terminal 1 of connector [79B]
Service Manual.
P0373 or P0374
and terminal 30 on Breakout
Box.
Continuity present?
4
YES
NO
YES
NO
Reinstall original
Replace CKP
Repair open on BK wire
Repair open on R wire
CKP sensor.
sensor
between Terminal 2 of
between Terminal 1 of
Replace ECM.
connector [79B] and
connector [79B] and
Reprogram and
terminal 12 of connector [78B].
terminal 30 of connector [78B].
learn password.
Clear codes using speedometer self diagnostics.
See 5.6 SPEEDOMETER SELF DIAGNOSTICS.
Confirm proper operation with no check engine
lamp.
2005 Touring: Engine Management (EFI)
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DTC P0501, P0502
5.25
GENERAL
7951
Vehicle Speed Sensor
See Figure 5-57. The vehicle speed sensor is powered and
monitored by the ECM. The ECM processes the vehicle
speed signal and transmits this signal to the TSM/TSSM and
speedometer through serial data.
NOTE
When the vehicle speed is greater than 0, the closed loop idle
speed control is inhibited.
Table 5-41. Code Description
DTC
DESCRIPTION
Figure 5-57. Vehicle Speed Sensor
P0501
VSS sensor low
f2183x8x
P0502
VSS sensor high/open
DIAGNOSTICS
1
Diagnostic Notes
The reference numbers below correlate with the circled num-
bers on the Test 5.25 flow charts.
1. The speedometer has a built-in diagnostic mode. See
2.3 SPEEDOMETER SELF DIAGNOSTICS.
2. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404A), black pin probe and patch cord.
2
3. Connect BREAKOUT BOX
(Part No. HD-43876)
between wire harness and ECM. See 5.7 BREAKOUT
BOX: EFI.
1. Vehicle Speed Sensor [65]
2. P&A Security Siren [142]
Figure 5-58. Electrical Bracket (Inboard Side)
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2005 Touring: Engine Management (EFI)
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f2208v8x
Vehicle speed
To Cruise and Sound System
sensor
R
A
A
R/W
W
B
B
W/GN
BK
C
C
BK
[65A]
[65B]
Speedometer
To TP, MAP Sensors
[39A]
[39B]
2
LGN/V
[78B]
5
10
14
33
[78A]
ECM
Figure 5-59. Vehicle Speed Sensor Circuit
Table 5-42. Wire Harness Connectors in Figure 5-59.
NO.
DESCRIPTION
MODEL
TYPE
LOCATION
Under Instrument Bezel
FLTR
12-Place Packard
(Back of Speedometer)
[39]
Speedometer
FLHT/C/U
12-Place Packard
Inner Fairing (Back of Speedometer)
FLHR/C/S
12-Place Packard
Back of Speedometer (Under Console)
Under Right Side Cover
[65]
Speedometer Speed Sensor
All
3-Place Deutsch
(Behind Electrical Bracket)
[78]
ECM
All
36-Place Packard
Under Right Side Cover
2005 Touring: Engine Management (EFI)
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