2006 INFINITI FX35 light

EC-484
[VQ35DE]
DTC P0643 SENSOR POWER SUPPLY
Revision: 2006 December 2006 FX35/FX45
DTC P0643 SENSOR POWER SUPPLYPFP:18919
On Board Diagnosis LogicNBS003UZ
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation ProcedureNBS003V0
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. Start engine and let it idle for 1 second.
4. If DTC is detected, go to EC-487, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
P0643
0643 Sensor power supply
circuit short ECM detects a voltage of power source for
sensor is excessively low or high.

Harness or connectors
(APP sensor 1 circuit is shorted.)
(PSP sensor circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
(EVAP control system pressure sensor circuit
is shorted.)

Accelerator pedal position sensor
(APP sensor 1)

EVAP control system pressure sensor

Power steering pressure sensor

Refrigerant pressure sensor
Engine operation condition in fail-safe mode
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) b y the return
spring.
SEF058Y

DTC P1211 TCS CONTROL UNIT EC-495
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionNBS003U9
The malfunction information related to TCS is transferred through the CAN communication line from “ABS
actuator and electric unit (control unit)” to ECM.
Be sure to erase the malfunction information such as DTC not only for “ABS actuator and electric unit
(control unit)” but also for ECM after TCS related repair.
On Board Diagnosis LogicNBS003UA
Freeze frame data is not stored in the ECM for this self-diagnosis.
The MIL will not light up for this self-diagnosis.
DTC Confirmation ProcedureNBS003UB
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 60 seconds.
4. If 1st trip DTC is detected, go to EC-495, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureNBS003UC
Go to BRC-36, "TROUBLE DIAGNOSIS FOR SYSTEM" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1211
1211 TCS control unit ECM receives a malfunction information from
“ABS actuator and electric unit (Control unit)”.

ABS actuator and electric unit (control
unit)

TCS related parts
SEF058Y

EC-496
[VQ35DE]
DTC P1212 TCS COMMUNICATION LINE
Revision: 2006 December 2006 FX35/FX45
DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionNBS003UD
NOTE:

If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-156, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .

If DTC P1212 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to EC-159, "
DTC U1010 CAN COMMUNICATION" .
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and “ABS actuator and electric unit (control unit)”.
Be sure to erase the malfunction information such as DTC not only for “ABS actuator and electric unit
(control unit)” but also for ECM after TCS related repair.
On Board Diagnosis LogicNBS003UE
Freeze frame data is not stored in the ECM for this self-diagnosis.
The MIL will not light up for this self-diagnosis.
DTC Confirmation ProcedureNBS003UF
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 10 seconds.
4. If 1st trip DTC is detected, go to EC-496, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureNBS003UG
Go to BRC-11, "TROUBLE DIAGNOSIS" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212 TCS communication
line ECM can not receive the information
from “ABS actuator and electric unit (con-
trol unit)”.

Harness or connectors
(CAN communication line is open or shorted.)

ABS actuator and electric unit (control unit)

Dead (Weak) battery
SEF058Y

EC-510
[VQ35DE]
DTC P1225 TP SENSOR
Revision: 2006 December 2006 FX35/FX45
DTC P1225 TP SENSORPFP:16119
Component DescriptionNBS003UP
Electric throttle control actuator consists of throttle control motor,
throttle position (TP) sensor, etc. The throttle position sensor
responds to the throttle valve movement.
The throttle position sensor has 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 addition,
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 signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
On Board Diagnosis LogicNBS003UQ
The MIL will not light up for this diagnosis.
DTC Confirmation ProcedureNBS003UR
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 and wait at least 10 seconds.
4. Turn ignition switch ON.
5. If 1st trip DTC is detected, go to EC-511, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1225
1225 Closed throttle position
learning performance Closed throttle position learning value is exces-
sively low.

Electric throttle control actuator
(TP sensor 1 and 2)
SEF058Y

EC-512
[VQ35DE]
DTC P1226 TP SENSOR
Revision: 2006 December 2006 FX35/FX45
DTC P1226 TP SENSORPFP:16119
Component DescriptionNBS003UU
Electric throttle control actuator consists of throttle control motor,
throttle position (TP) sensor, etc. The throttle position sensor
responds to the throttle valve movement.
The throttle position sensor has 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 addition,
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 signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
On Board Diagnosis LogicNBS003UV
The MIL will not light up for this diagnosis.
DTC Confirmation ProcedureNBS003UW
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 and 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-513, "
Diagnostic Procedure"
.
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 Closed throttle position learning is not per-
formed successfully, repeatedly.

Electric throttle control actuator
(TP sensor 1 and 2)
SEF058Y

EC-514
[VQ35DE]
DTC P1564 ICC STEERING SWITCH
Revision: 2006 December 2006 FX35/FX45
DTC P1564 ICC STEERING SWITCHPFP:25551
Component DescriptionNBS003WW
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 ModeNBS003WX
Specification data are reference values.
On Board Diagnosis LogicNBS003WY

This self-diagnosis has the one trip detection logic.

The MIL will not light up for this self-diagnosis .
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-481, "
DTC P0605 ECM" .
PBIB3255E
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: Depressed 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
(ICC steering switch circuit is open or
shorted.)

ICC steering switch

ECM

DTC P1564 ASCD STEERING SWITCH EC-521
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
DTC P1564 ASCD STEERING SWITCHPFP:25551
Component DescriptionNBS003X3
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-36, "
AUTOMATIC SPEED CONTROL DEVICE (ASCD)" for the ASCD function.
CONSULT-II Reference Value in Data Monitor ModeNBS003X4
Specification data are reference values.
On Board Diagnosis LogicNBS003X5
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-481, "
DTC P0605 ECM".
PBIB3255E
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
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
steering switch is out of the specified range.

ECM detects that the ASCD steering switch is
stuck ON.

Harness or connectors
(ASCD steering switch circuit is open or
shorted.)

ASCD steering switch

ECM

EC-528
[VQ35DE]
DTC P1568 ICC FUNCTION
Revision: 2006 December 2006 FX35/FX45
DTC P1568 ICC FUNCTIONPFP:18995
On Board Diagnosis LogicNBS003XA
NOTE:

If DTC P1568 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-156, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .

If DTC P1568 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to EC-159, "
DTC U1010 CAN COMMUNICATION" .

If DTC P1568 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-481, "
DTC P0605 ECM"

This self-diagnosis has the one trip detection logic.

The MIL will not light up for this self-diagnosis.
DTC Confirmation ProcedureNBS003XB
CAUTION:
Always drive vehicle at a safe speed.
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.

Step 4 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road
test is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Press MAIN switch on ICC steering switch.
4. Drive the vehicle at more than 40 km/h (25 MPH).
5. Press SET/COAST switch.
6. If DTC is detected, go to EC-528, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureNBS003XC
1. REPLACE ICC UNIT
1. Replace ICC unit.
2. Perform ACS-11, "
ACTION TEST" .
3. Check DTC of ICC unit. Refer to ACS-42, "
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS" .
>> INSPECTION END
DTC No. Trouble Diagnosis
Name DTC Detecting Condition Possible Cause
P1568
1568 ICC function ECM detects a difference between signals
from ICC unit is out of specified range.

Harness or connectors
(CAN communication line is open or shorted.)

ICC unit

ECM
PBIB2673E