1.CHECK GROUND CONNECTION
Turn ignition switch OFF.
Check ground connection M95. Refer to Ground Inspection in
Circuit Inspection
.
Is the inspection result normal?
YES
>>
GO TO 2
.
NO
>>
Repair or replace ground connection.
2.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
Check the voltage between ECM harness connector terminals as follows.
DTC
ECM
Condition
Voltage (V)
+
–
Connector
Terminal
Connector
Terminal
P1233
F101
1
M107
128
Ignition switch OFF
Approx. 0
Ignition switch ON
Battery voltage
P2101
F102
49
Ignition switch OFF
Approx. 0
Ignition switch ON
Battery voltage
Is the inspection result normal?
YES
>>
GO TO 9
.
NO
>>
GO TO 3
.
3.CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect ECM harness connector.
Disconnect IPDM E/R harness connector.
Check the continuity between IPDM E/R harness connector and ECM harness connector.
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E7
70
M107
127
Existed
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>>
GO TO 5
.
NO
>>
GO TO 4
.
4.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E106, M6
Harness for open or short between ECM and IPDM E/R
>>
Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
Check the continuity between IPDM E/R harness connector and ECM harness connector.
DTC
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
P1233
E7
54
F101
1
Existed
P2101
F102
49
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>>
GO TO 7
.
NO
>>
GO TO 6
.
6.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E3, F1
Harness for open or short between ECM and IPDM E/R
>>
Repair open circuit, short to ground or short to power in harness or connectors.
7.CHECK FUSE
Disconnect 15A fuse (No. 51) from IPDM E/R.
Check 15A fuse for blown.
Is the inspection result normal?
YES
>>
GO TO 8
.
NO
>>
Replace 15A fuse.
8.CHECK INTERMITTENT INCIDENT
Refer to
Intermittent Incident
.
Is the inspection result normal?
YES
>>
Replace IPDM E/R.
NO
>>
Repair or replace harness or connectors.
9.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
Turn ignition switch OFF.
Disconnect electric throttle control actuator harness connector.
Disconnect ECM harness connector.
Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
DTC
Electric throttle control actuator
ECM
Continuity
Bank
Connector
Terminal
Connector
Terminal
P1233
2
F26
1
F102
2
Existed
5
Not existed
2
2
Not existed
5
Existed
P2101
1
F9
5
F101
50
Not existed
53
Existed
6
50
Existed
53
Not existed
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>>
GO TO 10
.
NO
>>
Repair or replace malfunctioning part.
10.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
Remove the intake air duct.
Check if foreign matter is caught between the throttle valve (1) and the housing.
Is the inspection result normal?
YES
>>
GO TO 11
.
NO
>>
Remove the foreign matter and clean the electric throttle control actuator inside.
11.CHECK THROTTLE CONTROL MOTOR
Refer to
Component Inspection (GT-R certified NISSAN dealer)
.
Is the inspection result normal?
YES
>>
GO TO 12
.
NO
>>
GO TO 13
.
12.CHECK INTERMITTENT INCIDENT
Refer to
Intermittent Incident
.
Is the inspection result normal?
YES
>>
GO TO 13
.
NO
>>
Repair or replace harness or connectors.
13.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Replace malfunction electric throttle control actuator.
Go to
Special Repair Requirement (GT-R certified NISSAN dealer)
.
>>
INSPECTION END