Infiniti QX56 (Z62). Manual - part 1312

SHIFT LOCK SYSTEM

TM-157

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B]

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SHIFT LOCK SYSTEM

Component Function Check

INFOID:0000000006226882

1.

CHECK A/T SHIFT LOCK OPERATION (PART 1)

1.

Turn ignition switch ON.

2.

Shift the selector lever to “P” position.

3.

Attempt to shift the selector lever to any other position with the brake pedal released.

Can the selector lever be shifted to any other position?

YES

>> Go to 

TM-157, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

CHECK A/T SHIFT LOCK OPERATION (PART 2)

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

Can the selector lever be shifted to any other position?

YES

>> INSPECTION END

NO

>> Go to 

TM-157, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006226883

1.

 CHECK POWER SOURCE

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) connector.

3.

Turn ignition switch ON.

4.

Check voltage between fuse block (J/B) connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 2. 

NO

>>

Check the following.

• 10A fuse [No. 3, located in fuse block (J/B)]. Refer to 

PG-140, "Fuse, Connector and Terminal

Arrangement"

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• Harness for short or open between ignition switch and fuse block (J/B). Refer to 

PG-89, "Wiring

Diagram - IGNITION POWER SUPPLY -"

.

• Ignition switch

2.

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

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp switch connector.

3.

Check continuity between fuse block (J/B) vehicle side harness connector terminal and stop lamp switch
vehicle side harness connector terminal.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK HARNESS BETWEEN FUSE BLOCK (J/B) AND STOP LAMP SWITCH (PART 2)

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

Fuse block (J/B) connector

Ground

Voltage (Approx.)

Connector

Terminal

E103

4F

Battery voltage

Fuse block (J/B) vehicle side harness connector

Stop lamp switch vehicle side harness connector

Continuity

Connector

Terminal

Connector

Terminal

E103

4F

E115

3

Existed

TM-158

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B]

SHIFT LOCK SYSTEM

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

CHECK STOP LAMP SWITCH (PART 1)

Check stop lamp switch. Refer to 

TM-159, "Component Inspection (Stop Lamp Switch)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 10.

5.

CHECK HARNESS BETWEEN STOP LAMP SWITCH AND A/T SHIFT SELECTOR (PART 1)

1.

Disconnect A/T shift selector connector.

2.

Check continuity between stop lamp switch vehicle side harness connector terminal and A/T shift selector
vehicle side harness connector terminal.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts.

6.

CHECK HARNESS BETWEEN STOP LAMP SWITCH AND A/T SHIFT SELECTOR (PART 2)

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

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace damaged parts.

7.

CHECK GROUND CIRCUIT

Check continuity between A/T shift selector vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace damaged parts.

8.

CHECK PARK POSITION SWITCH

Check park position switch. Refer to 

TM-159, "Component Inspection (Park Position Switch)"

.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace damaged parts.

9.

CHECK SHIFT LOCK SOLENOID

Check shift lock solenoid. Refer to 

TM-159, "Component Inspection (Shift Lock Solenoid)"

.

Stop lamp switch vehicle side harness connector

Ground

Continuity

Connector

Terminal

E115

3

Not existed

Stop lamp switch vehicle side harness connector

A/T shift selector vehicle side harness connector

Continuity

Connector

Terminal

Connector

Terminal

E115

4

M57

9

Existed

A/T shift selector vehicle side harness connector

Ground

Continuity

Connector

Terminal

M57

9

Not existed

A/T shift selector vehicle side harness connector

Ground

Continuity

Connector

Terminal

M57

10

Existed

SHIFT LOCK SYSTEM

TM-159

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B]

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Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> Repair or replace damaged parts.

10.

CHECK INSTALLATION POSITION OF STOP LAMP SWITCH

Adjust stop lamp switch position. Refer to 

BR-7, "Inspection and Adjustment"

.

>> GO TO 11.

11.

CHECK STOP LAMP SWITCH (PART 2)

Check stop lamp switch. Refer to 

TM-159, "Component Inspection (Stop Lamp Switch)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace stop lamp switch. Refer to 

BR-20, "Exploded View"

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Component Inspection (Stop Lamp Switch)

INFOID:0000000006226884

1.

CHECK STOP LAMP SWITCH

Check continuity between stop lamp switch connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace stop lamp switch. Refer to 

BR-20, "Exploded View"

.

Component Inspection (Park Position Switch)

INFOID:0000000006226885

1.

CHECK PARK POSITION SWITCH

Check continuity between A/T shift selector connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace A/T shift selector assembly. Refer to 

TM-176, "Exploded View"

.

Component Inspection (Shift Lock Solenoid)

INFOID:0000000006226886

1.

CHECK SHIFT LOCK SOLENOID

Apply voltage to A/T shift selector connector terminals and check that shift lock solenoid is activated.

CAUTION:

Connect the fuse between the terminals when applying the voltage.

Stop lamp switch connector

Condition

Continuity

Terminal

3

4

Depressed brake pedal

Existed

Released brake pedal

Not existed

A/T shift selector connector

Condition

Continuity

Terminal

11

12

Selector lever in “P” position.

Existed

Other than the above.

Not existed

A/T shift selector connector

Condition

Status

Terminal

+ (fuse)

–

11

12

• Selector lever in “P” position.
• Apply 12 V direct current between 

terminals 11 and 12.

Shift lock solenoid operates

TM-160

< DTC/CIRCUIT DIAGNOSIS >

[7AT: RE7R01B]

SHIFT LOCK SYSTEM

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace A/T shift selector assembly. Refer to 

TM-176, "Exploded View"

.