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![INFINITI FX35 2006 Service Manual DTC P1226 TP SENSOR EC-1185
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Revision: 2006 December 2006 FX35/FX45
DTC P1226 TP SENSORPFP:16119
Component DescriptionNBS004D5
Electric throttle control INFINITI FX35 2006 Service Manual DTC P1226 TP SENSOR EC-1185
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Revision: 2006 December 2006 FX35/FX45
DTC P1226 TP SENSORPFP:16119
Component DescriptionNBS004D5
Electric throttle control](/manual-img/42/57019/w960_57019-2568.png)
DTC P1226 TP SENSOR EC-1185
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Revision: 2006 December 2006 FX35/FX45
DTC P1226 TP SENSORPFP:16119
Component DescriptionNBS004D5
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
On Board Diagnosis LogicNBS004D6
The MIL will not light up for this diagnosis.
DTC Confirmation ProcedureNBS004D7
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Turn ignition switch OFF, wait at least 10 seconds.
4. Turn ignition switch ON.
5. Repeat steps 3 and 4 for 32 times.
6. If 1st trip DTC is detected, go to EC-1186, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1226
1226 Closed throttle position
learning performance
problem Closed throttle position learning is not per-
formed successfully, repeatedly.
Electric throttle control actuator
(TP sensor 1 and 2)
SEF058Y
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EC-1186
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DTC P1226 TP SENSOR
Revision: 2006 December 2006 FX35/FX45
Diagnostic ProcedureNBS004D8
1. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct.
3. Check if foreign matter is caught between the throttle valve (1) and the housing.
OK or NG
OK >> GO TO 2.
NG >> Remove the foreign matter and clean the electric throttle control actuator inside.
2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-744, "
Throttle Valve Closed Position Learning" .
3. Perform EC-744, "
Idle Air Volume Learning" .
>> INSPECTION END
Removal and InstallationNBS004D9
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-179, "INTAKE MANIFOLD" .
PBIB3247E
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![INFINITI FX35 2006 Service Manual DTC P1564 ICC STEERING SWITCH EC-1187
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Revision: 2006 December 2006 FX35/FX45
DTC P1564 ICC STEERING SWITCHPFP:25551
Component DescriptionNBS004DT
ICC st INFINITI FX35 2006 Service Manual DTC P1564 ICC STEERING SWITCH EC-1187
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Revision: 2006 December 2006 FX35/FX45
DTC P1564 ICC STEERING SWITCHPFP:25551
Component DescriptionNBS004DT
ICC st](/manual-img/42/57019/w960_57019-2570.png)
DTC P1564 ICC STEERING SWITCH EC-1187
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Revision: 2006 December 2006 FX35/FX45
DTC P1564 ICC STEERING SWITCHPFP:25551
Component DescriptionNBS004DT
ICC 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 ACS-6, "
DESCRIPTION" for the ICC function.
CONSULT-II Reference Value in Data Monitor ModeNBS004DU
Specification data are reference values.
On Board Diagnosis LogicNBS004DV
This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis .
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to
EC-1146
.
1. ICC steering switch 2. MAIN switch 3. DISTANCE switch
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:
Released OFF
SET SW
Ignition switch: ON SET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
DIST SW
Ignition switch: ON DISTANCE switch: Pressed ON
DISTANCE switch: Released OFF
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
P1564
1564 ICC steering switch
An excessively high voltage signal from the
ICC steering switch is sent to ECM.
ECM detects that input signal from the ICC
steering switch is out of the specified range.
ECM detects that the ICC steering switch is
stuck ON.
Harness or connectors
(The switch circuit is open or shorted.)
ICC steering switch
ECM
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![INFINITI FX35 2006 Service Manual EC-1188
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
DTC Confirmation ProcedureNBS004DW
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn INFINITI FX35 2006 Service Manual EC-1188
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
DTC Confirmation ProcedureNBS004DW
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn](/manual-img/42/57019/w960_57019-2571.png)
EC-1188
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
DTC Confirmation ProcedureNBS004DW
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 10 seconds.
4. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
5. Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.
6. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 seconds.
7. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.
8. Press DISTANCE switch for at least 10 seconds, then release it and wait at least 10 seconds.
9. If DTC is detected, go to EC-1190, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
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DTC P1564 ICC STEERING SWITCH EC-1189
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Revision: 2006 December 2006 FX35/FX45
Wiring DiagramNBS004DX
TBWM0724E
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![INFINITI FX35 2006 Service Manual EC-1190
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use E INFINITI FX35 2006 Service Manual EC-1190
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use E](/manual-img/42/57019/w960_57019-2573.png)
EC-1190
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS004DY
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body. Refer to EC-818, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL 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
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2. CHECK ICC STEERING SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition sw INFINITI FX35 2006 Service Manual DTC P1564 ICC STEERING SWITCH EC-1191
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Revision: 2006 December 2006 FX35/FX45
2. CHECK ICC STEERING SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition sw](/manual-img/42/57019/w960_57019-2574.png)
DTC P1564 ICC STEERING SWITCH EC-1191
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Revision: 2006 December 2006 FX35/FX45
2. CHECK ICC STEERING SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW”, “SET SW” and “DIST SW” in “DATA MONITOR” mode with CON-
SULT-II.
3. Check each item indication under the following conditions.
Without CONSULT-II
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.
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
DISTANCE switch DIST SW Pressed ON
Released OFF
MBIB0064E
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
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![INFINITI FX35 2006 Service Manual EC-1192
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
3. CHECK ICC STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM ha INFINITI FX35 2006 Service Manual EC-1192
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
3. CHECK ICC STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM ha](/manual-img/42/57019/w960_57019-2575.png)
EC-1192
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DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
3. CHECK ICC STEERING SWITCH GROUND 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 combination 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 SIGNAL 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.
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-1193, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace ICC steering switch.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-811, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Continuity should exist.
Continuity should exist.