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