TRANSMISSION & DRIVELINE › TRANSAXLE & TRANSMISSION › COMPONENT DIAGNOSIS

SHIFT LOCK SYSTEM

TRANSMISSION: GR6Z30A

Description
Component Function Check
Diagnosis Procedure
Component Inspection (Stop Lamp Switch)

Description

The shift lock system mainly consists of the following components.

Component	Function
Shift lock solenoid	Activated by the ignition switch and stop lamp switch signals.
Stop lamp switch	When the brake pedal is depressed, the stop lamp switch turns ON and the transistor is energized via TCM.

Component Function Check

1.CHECK INFORMATION DISPLAY INDICATIONS

Turn the ignition switch ON.
Check the information display indications in the combination meter.

Does the “T/M SYSTEM CHECK IN PROCESS” indication disappear?

YES>>GO TO 2.

NO>>Check “Self Diagnostic Result” of “TRANSMISSION”.

2.CHECK SHIFT LOCK OPERATION (PART 1)

Shift the shift lever to the P position.
Shift the shift lever to any other position with the brake pedal released.

Can the shift lever be shifted to other positions?

YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).

NO>>GO TO 3.

3.CHECK SHIFT LOCK OPERATION (PART 2)

Shift the shift lever to any other position with the brake pedal depressed.

Can the shift lever be shifted to other positions?

YES>>INSPECTION END

NO>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).

Diagnosis Procedure

1.CHECK SHIFT POSITION

Check the shift positions. Refer to “Inspection” in Inspection and Adjustment.

Is the inspection result normal?

YES>>GO TO 2.

NO>>Adjust the shift positions. Refer to “Adjustment” in Inspection and Adjustment.

2.CHECK GROUND CONNECTION

Turn ignition switch OFF.
Check ground connections B31 and B14. Refer to “Ground Inspection” in Circuit Inspection.

Is the inspection result normal?

YES >>GO TO 3.

NO >>Repair or replace damaged parts.

3.CHECK POWER SUPPLY CIRCUIT (PART 1)

Disconnect the control device harness connector.
Turn the ignition switch ON.
Check voltage between the control device vehicle side harness connector and ground.
Control device vehicle side harness connector
Ground
Condition
Voltage (Approx.)
Connector
Terminal
B20
13
Ground
Ignition switch ON
Battery voltage (11 – 14 V)
Ignition switch OFF
0 V

Is the inspection result normal?

YES>>GO TO 4.

NO>>GO TO 7.

4.CHECK TCM OUTPUT SIGNAL CIRCUIT

Check the voltage between the control device vehicle side harness connector and ground.

Control device vehicle side harness connector		Ground	Condition	Voltage (Approx.)
Connector	Terminal
B20	14	Ground	Shift lever: P position Brake pedal depressed	Battery voltage (11 – 14 V)
			Other than the above	0 V

Is the inspection result normal?

YES>>GO TO 5.

NO>>GO TO 10.

5.CHECK HARNESS BETWEEN CONTROL DEVICE (SHIFT LOCK SOLENOID) AND GROUND

Check continuity between the control device vehicle side harness connector terminal and ground.

Control device vehicle side harness connector		Ground	Continuity
Connector	Terminal
B20	18	Ground	Existed

Is the inspection result normal?

YES>>GO TO 6.

NO >>Repair or replace damaged parts.

6.CHECK INTERMITTENT INCIDENT

Refer to Circuit Inspection.

Is the inspection result normal?

YES>>Replace the control device. Refer to Exploded View.

NO >>Repair or replace damaged parts.

7.CHECK HARNESS BETWEEN CONTROL DEVICE (SHIFT LOCK SOLENOID) AND FUSE BLOCK (J/B) (PART 1)

Turn the ignition switch OFF.
Disconnect the fuse block (J/B) harness connector.
Check the continuity between the control device vehicle side harness connector terminal and the fuse block (J/B) vehicle side harness connector terminal.
Control device vehicle side harness connector
Fuse block (J/B) vehicle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
E20
13
M3
12C
Existed

Is the inspection result normal?

YES>>GO TO 8.

NO>>Repair or replace damaged parts.

8.CHECK HARNESS BETWEEN CONTROL DEVICE (SHIFT LOCK SOLENOID) AND FUSE BLOCK (J/B) (PART 2)

Check continuity between the control device vehicle side harness connector terminal and ground.

Control device vehicle side harness connector		Ground	Continuity
Connector	Terminal
B20	13	Ground	Not existed

Is the inspection result normal?

YES>>GO TO 9.

NO >>Repair or replace damaged parts.

9.DETECT MALFUNCTIONING ITEM

Check the following. Refer to Wiring Diagram - IGNITION POWER SUPPLY -.

10A fuse [No.4, fuse block (J/B)]
Fuse block (J/B)
Harness for open or short between fuse block (J/B) and push-button ignition switch
Push-button ignition switch

Is the inspection result normal?

YES>>GO TO 19.

NO>>Repair or replace damaged parts.

10.CHECK HARNESS BETWEEN TCM AMD CONTROL DEVICE (SHIFT LOCK SOLENOID) (PART 1)

Turn the ignition switch OFF.
Disconnect the TCM harness connector.
Check the continuity between the TCM vehicle side harness connector terminal and the control device vehicle side harness connector terminal.
TCM vehicle side harness connector
Control device vehicle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
B45
46
B20
14
Existed

Is the inspection result normal?

YES>>GO TO 11.

NO>>Repair or replace damaged parts.

11.CHECK HARNESS BETWEEN TCM AMD CONTROL DEVICE (SHIFT LOCK SOLENOID) (PART 2)

Check the continuity between the TCM vehicle side harness connector terminal and ground.

TCM vehicle side harness connector		Ground	Continuity
Connector	Terminal
B45	46	Ground	Not existed

Is the inspection result normal?

YES>>GO TO 12.

NO>>Repair or replace damaged parts.

12.CHECK POWER SUPPLY CIRCUIT (PART 2)

Disconnect the stop lamp switch harness connector.
Check voltage between the stop lamp switch vehicle side harness connector and ground.
Stop lamp switch vehicle side harness connector
Ground
Condition
Voltage (Approx.)
Connector
Terminal
E110
1
Ground
Always
Battery voltage (11 – 14 V)

Is the inspection result normal?

YES>>GO TO 13.

NO>>GO TO 16.

13.CHECK STOP LAMP SWITCH

Check the stop lamp switch. Refer to Component Inspection (Stop Lamp Switch) (NHPC).

Is the inspection result normal?

YES>>GO TO 14.

NO>>Replace the stop lamp switch. Refer to Exploded View.

14.CHECK HARNESS BETWEEN TCM AMD STOP LAMP SWITCH (PART 1)

Check the continuity between the TCM vehicle side harness connector terminal and the stop lamp switch vehicle side harness connector terminal.

TCM vehicle side harness connector		Stop lamp switch vehicle side harness connector		Continuity
Connector	Terminal	Connector	Terminal	Continuity
B45	16	E110	2	Existed

Is the inspection result normal?

YES>>GO TO 15.

NO>>Repair or replace damaged parts.

15.CHECK HARNESS BETWEEN TCM AMD STOP LAMP SWITCH (PART 2)

Check the continuity between the TCM vehicle side harness connector terminal and ground.

TCM vehicle side harness connector		Ground	Continuity
Connector	Terminal
B45	16	Ground	Not existed

Is the inspection result normal?

YES>>GO TO 19.

NO>>Repair or replace damaged parts.

16.CHECK HARNESS BETWEEN STOP LAMP SWITCH AND FUSE BLOCK (J/B) (PART 1)

Disconnect the fuse block (J/B) harness connector.
Check the continuity between the stop lamp switch vehicle side harness connector terminal and the fuse block (J/B) vehicle side harness connector terminal.
Stop lamp switch vehicle side harness connector
Fuse block (J/B) vehicle side harness connector
Continuity
Connector
Terminal
Connector
Terminal
E110
1
E103
8F
Existed

Is the inspection result normal?

YES>>GO TO 17.

NO>>Repair or replace damaged parts.

17.CHECK HARNESS BETWEEN CONTROL DEVICE (SHIFT LOCK SOLENOID) AND FUSE BLOCK (J/B) (PART 2)

Check continuity between the stop lamp switch vehicle side harness connector terminal and ground.

Stop lamp switch vehicle side harness connector		Ground	Continuity
Connector	Terminal
E110	1	Ground	Not existed

Is the inspection result normal?

YES>>GO TO 18.

NO >>Repair or replace damaged parts.

18.DETECT MALFUNCTIONING ITEM

Check the following. Refer to Wiring Diagram - BATTERY POWER SUPPLY -.

10A fuse [No.7, fuse block (J/B)]
Fuse block (J/B)
Harness for open or short between fuse block (J/B) and battery

Is the inspection result normal?

YES>>GO TO 19.

NO>>Repair or replace damaged parts.

19.CHECK INTERMITTENT INCIDENT

Refer to Intermittent Incident.

>>INSPECTION END

Component Inspection (Stop Lamp Switch)

1.CHECK STOP LAMP SWITCH

Check the continuity between stop lamp switch connector terminals.

Stop lamp switch connector			Condition	Continuity
Connector	Terminal
E110	1	2	Brake pedal depressed	Existed
			Brake pedal not depressed	Not existed

Is the inspection result normal?

YES>>INSPECTION END

NO>>Replace the stop lamp switch. Refer to Exploded View.

Control device vehicle side harness connector		Fuse block (J/B) vehicle side harness connector		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E20	13	M3	12C	Existed