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DTC P1564 ICC STEERING SWITCHEC-1049
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Wiring DiagramINFOID:0000000001326922
Specification data are reference values
and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals wh en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
TBWM0724E
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![INFINITI FX35 2008 Service Manual
EC-1050
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ICC STEERING SWITCH
Diagnosis Procedure
INFOID:0000000001326923
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three INFINITI FX35 2008 Service Manual
EC-1050
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ICC STEERING SWITCH
Diagnosis Procedure
INFOID:0000000001326923
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three](/manual-img/42/57017/w960_57017-2289.png)
EC-1050
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ICC STEERING SWITCH
Diagnosis Procedure
INFOID:0000000001326923
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body. Refer to EC-723, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK ICC STEERING SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON.
2. Select “MAIN SW”, “CANCEL SW ”, “RESUME/ACC SW”, “SET SW” and “DIST SW” in “DATA MONITOR”
mode with CONSULT-III.
3. Check each item indication under the following conditions.
TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
82 B/W Sensor ground [Engine is running]
Warm-up condition
Idle speed Approximately 0V
99 G/Y ICC steering switch [Ignition switch: ON]
ICC steering switch: OFF
Approximately 4.3V
[Ignition switch: ON]
MAIN switch: Pressed Approximately 0V
[Ignition switch: ON]
CANCEL switch: Pressed Approximately 1.3V
[Ignition switch: ON]
RESUME/ACCELERATE switch: Pressed Approximately 3.7V
[Ignition switch: ON]
SET/COAST switch: Pressed Approximately 3V
[Ignition switch: ON]
DISTANCE switch: Pressed Approximately 2.2V
PBIB2195E
Switch Monitor item Condition Indication
MAIN switch MAIN SW Pressed ON
Released OFF
CANCEL switch CANCEL SW Pressed ON
Released OFF
RESUME/ACCEL-
ERATE switch RESUME/ACC SW Pressed ON
Released OFF
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![INFINITI FX35 2008 Service Manual
DTC P1564 ICC STEERING SWITCHEC-1051
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Without CONSULT-III
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 99 and gro INFINITI FX35 2008 Service Manual
DTC P1564 ICC STEERING SWITCHEC-1051
< SERVICE INFORMATION > [VK45DE]
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Without CONSULT-III
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 99 and gro](/manual-img/42/57017/w960_57017-2290.png)
DTC P1564 ICC STEERING SWITCHEC-1051
< SERVICE INFORMATION > [VK45DE]
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Without CONSULT-III
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 99 and ground with press- ing each button.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
3.CHECK ICC STEERING SWITCH GRO UND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect combination switch harness connector M203.
4. Check harness continuity between combinati on switch terminal 15 and ECM terminal 82.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
Combination switch (spiral cable)
Harness for open and short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK ICC STEERING SWITCH INPUT SI GNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 99 and combination switch terminal 14. Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
SET/COAST switch SET SW Pressed ON
Released OFF
DISTANCE switch DIST SW Pressed ON
Released OFF
Switch Monitor item Condition Indication
Switch Condition Voltage [V]
MAIN switch Pressed Approx. 0
Released Approx. 4.3
CANCEL switch Pressed Approx. 1.3
Released Approx. 4.3
RESUME/ACCELER-
ATE switch Pressed Approx. 3.7
Released Approx. 4.3
SET/COAST switch Pressed Approx. 3.0
Released Approx. 4.3
DISTANCE switch Pressed Approx. 2.2
Released Approx. 4.3
PBIB0311E
Continuity should exist.
Continuity should exist.
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![INFINITI FX35 2008 Service Manual
EC-1052
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ICC STEERING SWITCH
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
Combination switch (spiral cable)
Ha INFINITI FX35 2008 Service Manual
EC-1052
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ICC STEERING SWITCH
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
Combination switch (spiral cable)
Ha](/manual-img/42/57017/w960_57017-2291.png)
EC-1052
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ICC STEERING SWITCH
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
Combination switch (spiral cable)
Harness for open and short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK ICC STEERING SWITCH
Refer to EC-1052, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace ICC steering switch.
8.CHECK INTERMITTENT INCIDENT
Refer to EC-717
.
>> INSPECTION END
Component InspectionINFOID:0000000001326924
ICC STEERING SWITCH
1. Disconnect combination switch (spiral cable) harness connector M203.
2. Check continuity between combination switch terminals 14 and
15 with pushing each switch.
If NG, replace ICC steering switch.
Switch Condition Resistance [ Ω]
MAIN switch Pressed Approx. 0
Released Approx. 5,500
CANCEL switch Pressed Approx. 310
Released Approx. 5,500
RESUME/ACCELERATE
switch Pressed Approx. 2,600
Released Approx. 5,500
SET/COAST switch Pressed Approx. 1,400
Released Approx. 5,500
DISTANCE switch Pressed Approx. 740
Released Approx. 5,500
PBIB0967E
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![INFINITI FX35 2008 Service Manual
DTC P1564 ASCD STEERING SWITCHEC-1053
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DTC P1564 ASCD STEERING SWITCH
Component DescriptionINFOID:0000000001326925
ASCD steering switch INFINITI FX35 2008 Service Manual
DTC P1564 ASCD STEERING SWITCHEC-1053
< SERVICE INFORMATION > [VK45DE]
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DTC P1564 ASCD STEERING SWITCH
Component DescriptionINFOID:0000000001326925
ASCD steering switch](/manual-img/42/57017/w960_57017-2292.png)
DTC P1564 ASCD STEERING SWITCHEC-1053
< SERVICE INFORMATION > [VK45DE]
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DTC P1564 ASCD STEERING SWITCH
Component DescriptionINFOID:0000000001326925
ASCD steering switch has variant values of electrical
resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer to EC-615
for the ASCD function.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000001326926
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001326927
This self-diagnosis has the on e trip detection logic.
The MIL will not light up for this diagnosis .
NOTE:
If DTC P1564 is displayed with DTC P0605, first pe rform the trouble diagnosis for DTC P0605. Refer to
EC-1007
.
1. ASCD steering switch 2. MAIN switch 3. DISTANCE switch
(ICC models only)
4. CANCEL switch 5. SET/COAST switch 6. RESUME/ACCELERATE switch
PBIB3241E
MONITOR ITEM CONDITION SPECIFICATION
MAIN SW Ignition switch: ON MAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW Ignition switch: ON CANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW Ignition switch: ON RESUME/ACCELERATE switch:
Pressed
ON
RESUME/ACCELERATE switch: Re-
leased OFF
SET SW Ignition switch: ON SET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
DTC No.
Trouble diagnosis
name DTC detecting condition Possible cause
P1564
1564 ASCD steering switch An excessively high voltage signal from the ASCD
steering switch is sent to ECM.
ECM detects that input signal from the ASCD steer- ing switch is out of the specified range.
ECM detects that the ASCD steering switch is stuck
ON. Harness or connectors
(The switch circuit is open or shorted.)
ASCD steering switch
ECM
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EC-1054
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DTC P1564 ASCD STEERING SWITCH
DTC Confirmation Procedure
INFOID:0000000001326928
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
1. Turn ignition switch ON and wait at least 10 seconds.
2. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
3. Press CANCEL switch for at least 10 seconds , then release it and wait at least 10 seconds.
4. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-
onds.
5. Press SET/COAST switch for at least 10 seconds , then release it and wait at least 10 seconds.
6. Check DTC.
7. If DTC is detected, go to EC-1056, "
Diagnosis Procedure".
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DTC P1564 ASCD STEERING SWITCHEC-1055
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Wiring DiagramINFOID:0000000001326929
Specification data are reference values
and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals wh en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
TBWM0725E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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![INFINITI FX35 2008 Service Manual
EC-1056
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ASCD STEERING SWITCH
Diagnosis Procedure
INFOID:0000000001326930
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten thre INFINITI FX35 2008 Service Manual
EC-1056
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ASCD STEERING SWITCH
Diagnosis Procedure
INFOID:0000000001326930
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten thre](/manual-img/42/57017/w960_57017-2295.png)
EC-1056
< SERVICE INFORMATION >[VK45DE]
DTC P1564 ASCD STEERING SWITCH
Diagnosis Procedure
INFOID:0000000001326930
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body. Refer to EC-723, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT-III
1. Turn ignition switch ON.
2. Select “MAIN SW”, “CANCEL SW”, “RESUME/A CC SW” and “SET SW” in “DATA MONITOR” mode with
CONSULT-III.
3. Check each item indication under the following conditions.
TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
82 B/W Sensor ground [Engine is running]
Warm-up condition
Idle speed Approximately 0V
99 G/Y ASCD steering switch [Ignition switch: ON]
ASCD steering switch: OFF
Approximately 4V
[Ignition switch: ON]
MAIN switch: Pressed Approximately 0V
[Ignition switch: ON]
CANCEL switch: Pressed Approximately 1V
[Ignition switch: ON]
RESUME/ACCELERATE switch: Pressed Approximately 3V
[Ignition switch: ON]
SET/COAST switch: Pressed Approximately 2V
PBIB2195E
Switch Monitor item Condition Indication
MAIN switch MAIN SW Pressed ON
Released OFF
CANCEL switch CANCEL SW Pressed ON
Released OFF
RESUME/ACCEL-
ERATE switch RESUME/ACC SW Pressed ON
Released OFF
SET/COAST switch SET SW Pressed ON
Released OFF
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