turn signal INFINITI M35 2007 Factory Service Manual

EC-492
[VQ35DE]
DTC P0850 PNP SWITCH
Revision: 2007 April2007 M35/M45
Overall Function CheckNBS0052Q
Use this procedure to check the overall function of the park/neutral position (PNP) switch circuit. During this
check, a 1st trip DTC might not be confirmed.
WITH GST
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 102 (PNP switch signal)
and ground under the following conditions.
3. If NG, go to EC-494, "
Diagnostic Procedure" .
Position (Selector lever) Voltage (Known good data)
P or N position Approx. 0V
Except above positionBATTERY VOLTAGE
(11 - 14V)
MBIB0043E

EC-494
[VQ35DE]
DTC P0850 PNP SWITCH
Revision: 2007 April2007 M35/M45
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 ProcedureNBS0052S
1. CHECK DTC WITH TCM
Refer to AT- 4 0 , "
OBD-II Diagnostic Trouble Code (DTC)" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
Ye s o r N o
Yes >> GO TO 3.
No >> Refer to SC-8, "
STARTING SYSTEM" .
3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Disconnect “unified meter and A/C amp.” harness connector.
4. Check harness continuity between A/T assembly terminal 9 and “unified meter and A/C amp.” terminal 2.
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.

Harness connectors M72, F102

Harness for open or short between A/T assembly and “unified meter and A/C amp.”
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
102 G PNP switch[Ignition switch: ON]

Selector lever: P or NApproximately 0V
[Ignition switch: ON]

Selector lever: Except aboveBATTERY VOLTAGE
(11 - 14V)
Continuity should exist.

EC-498
[VQ35DE]
DTC P1212 TCS COMMUNICATION LINE
Revision: 2007 April2007 M35/M45
DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionNBS0052Y
NOTE:

If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-161, "
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-164, "
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 LogicNBS0052Z
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 ProcedureNBS00530
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-498, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureNBS00531
Go to BRC-10, "TROUBLE DIAGNOSIS" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212TCS communication
lineECM can not receive the information
from “ABS actuator and electric unit (con-
trol unit)” continuously.

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

ABS actuator and electric unit (control unit)

Dead (Weak) battery
SEF058Y

EC-506
[VQ35DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2007 April2007 M35/M45
8. CHECK COOLING FAN CONTROL SIGNAL CIRCUIT
1. Check harness continuity between IPDM E/R terminal 59 and cooling fan control module terminal 2.
Refer to wiring diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK COOLING FAN CONTROL MODULE OUTPUT SIGNAL CIRCUIT
1. Reconnect all harness connectors disconnected.
2. Disconnect cooling fan control module harness connectors E301, E303.
3. Turn ignition switch ON.
4. Check voltage between cooling fan control module terminals 4,
6 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 10.
NG >> Replace cooling fan control module.
10. CHECK COOLING FAN MOTORS -1 AND -2
Refer to EC-509, "
Component Inspection" .
OK or NG
OK >> GO TO 15.
NG >> Replace cooling fan motor.
11 . CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect cooling fan relay harness connector.
3. Turn ignition switch ON.
4. Check voltage between cooling fan relay terminals 1, 3 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.Continuity should exist.
Voltage: Battery voltage
PBID0261J
Voltage: Battery voltage
PBIA9511J

EC-518
[VQ35DE]
DTC P1225 TP SENSOR
Revision: 2007 April2007 M35/M45
DTC P1225 TP SENSORPFP:16119
Component DescriptionNBS0053H
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 LogicNBS0053I
The MIL will not light up for this diagnosis.
DTC Confirmation ProcedureNBS0053J
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. If 1st trip DTC is detected, go to EC-519, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1225
1225Closed throttle position
learning performanceClosed throttle position learning value is exces-
sively low.

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

EC-520
[VQ35DE]
DTC P1226 TP SENSOR
Revision: 2007 April2007 M35/M45
DTC P1226 TP SENSORPFP:16119
Component DescriptionNBS0053M
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 LogicNBS0053N
The MIL will not light up for this diagnosis.
DTC Confirmation ProcedureNBS0053O
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-521, "
Removal and Installa-
tion" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1226
1226Closed throttle position
learning performanceClosed throttle position learning is not per-
formed successfully, repeatedly.

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

DTC P1550 BATTERY CURRENT SENSOR
EC-529
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
6. CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between battery current sensor terminal 3 and ECM terminal 71.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E10, F1

Harness for open or short between battery current sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK BATTERY CURRENT SENSOR
Refer to EC-529, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace battery negative cable assembly.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-153, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS0053X
BATTERY CURRENT SENSOR
1. Reconnect harness connectors disconnected.
2. Disconnect battery negative cable (1).

: To body ground
3. Install jumper cable (A) between battery negative terminal and
body ground.
4. Turn ignition switch ON.Continuity should exist.
PBIB2724E

EC-536
[VQ35DE]
DTC P1551, P1552 BATTERY CURRENT SENSOR
Revision: 2007 April2007 M35/M45
6. CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between battery current sensor terminal 3 and ECM terminal 71.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E10, F1

Harness for open or short between battery current sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK BATTERY CURRENT SENSOR
Refer to EC-536, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace battery negative cable assembly.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-153, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS00544
BATTERY CURRENT SENSOR
1. Reconnect harness connectors disconnected.
2. Disconnect battery negative cable (1).

: To body ground
3. Install jumper cable (A) between battery negative terminal and
body ground.
4. Turn ignition switch ON.Continuity should exist.
PBIB2724E

DTC P1553 BATTERY CURRENT SENSOR
EC-543
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
6. CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between battery current sensor terminal 3 and ECM terminal 71.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E10, F1

Harness for open or short between battery current sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK BATTERY CURRENT SENSOR
Refer to EC-543, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace battery negative cable assembly.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-153, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS0054B
BATTERY CURRENT SENSOR
1. Reconnect harness connectors disconnected.
2. Disconnect battery negative cable (1).

: To body ground
3. Install jumper cable (A) between battery negative terminal and
body ground.
4. Turn ignition switch ON.Continuity should exist.
PBIB2724E

EC-546
[VQ35DE]
DTC P1554 BATTERY CURRENT SENSOR
Revision: 2007 April2007 M35/M45
Overall Function CheckNBS0054F
Use this procedure to check the overall function of the battery current sensor circuit. During this check, a 1st
trip DTC might not be confirmed.
TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 12.8V at idle.

Before performing the following procedure, confirm that all load switches and A/C switch are
turned OFF.
WITH CONSULT-II
1. Start engine and let it idle.
2. Select “BAT CUR SEN” in “DATA MONITOR” mode with CON-
SULT-II.
3. Check “BAT CUR SEN” indication for 10 seconds.
“BAT CUR SEN” should be above 2,300mV at least once.
4. If NG, go to EC-548, "
Diagnostic Procedure" .
WITH GST
1. Start engine and let it idle.
2. Check voltage between ECM terminal 71 (battery current sensor
signal) and ground for 10 seconds.
The voltage should be above 2.3V at least once.
3. If NG, go to EC-548, "
Diagnostic Procedure" .
PBIB2615E
PBIB2616E