Nissan Frontier D22. Manual — part 21
A/T SHIFT LOCK SYSTEM
AT-53
[RL4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
Wiring Diagram
ECS007J2
WCWA0113E
AT-54
[RL4R01A]
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
ECS007J3
SYMPTOM 1:
●
Selector lever cannot be moved from P position with key in ON position and brake pedal applied.
●
Selector lever can be moved from P position with key in ON position and brake pedal released.
●
Selector lever can be moved from P position when key is removed from key cylinder.
SYMPTOM 2:
●
Ignition key cannot be removed when selector lever is set to P position.
●
Ignition key can be removed when selector lever is set to any position except P.
1.
CHECK SHIFT LOCK ROD
Check shift lock rod for damage.
OK or NG
OK
>> GO TO 2.
NG
>> Repair shift lock rod. Refer to
.
2.
CHECK SELECTOR LEVER POSITION
Check selector lever position indicator and selector lever for damage.
OK or NG
OK
>> GO TO 3.
NG
>> Check selector lever. Refer to
AT-60, "Park/Neutral Position (PNP) Switch Adjustment"
and
61, "Control Cable Adjustment"
3.
CHECK POWER SOURCE
1.
Turn ignition switch ON.
(Do not start engine.)
2.
Check voltage between A/T shift lock switch (ASCD brake switch) harness connector M48 terminal 1 and
ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING ITEM
Check the following items:
●
7.5A fuse (No. 5, located in the fuse block)
●
Harness for short or open between fuse and A/T shift lock switch (ASCD brake switch) harness connector
terminal 1
●
Ignition switch. Refer to
PG-14, "IGNITION POWER SUPPLY — IGNITION SW. IN ON AND/OR START"
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace damaged parts.
Voltage
: Battery voltage
AAT140A
A/T SHIFT LOCK SYSTEM
AT-55
[RL4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
5.
CHECK INPUT SIGNAL [A/T SHIFT LOCK SWITCH (ASCD BRAKE SWITCH)]
1.
Turn ignition switch ON.
(Do not start engine.)
2.
Check voltage between A/T device harness connector M35, terminal 2 (B/W) and ground.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING ITEM
Check the following items:
●
Harness for short or open between A/T device harness connector M35 terminal 2 and A/T shift lock switch
(ASCD brake switch) harness connector terminal 2
●
A/T shift lock switch (ASCD brake switch)
Check continuity between terminals 1 and 2
Check A/T shift lock switch (ASCD brake switch) after adjusting brake pedal. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
WAT524
AAT145A
MTBL0208
AT-56
[RL4R01A]
A/T SHIFT LOCK SYSTEM
7.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect A/T device harness connector.
3.
Check continuity between A/T device harness connector M35 terminal 1 and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 8.
NG
>> Repair harness or connector.
8.
CHECK PARK POSITION SWITCH
●
Check continuity between A/T device harness connector M35 terminal 1 (B) and park position switch har-
ness connector S1 terminal 2 (L).
OK or NG
OK
>> GO TO 9.
NG
>> Replace park position switch.
9.
CHECK SHIFT LOCK SOLENOID
●
Check operation by applying battery voltage to A/T device connector M35 terminal 2 (B/W) and shift lock
solenoid harness connector S1 terminal 2 (B).
OK or NG
OK
>> GO TO 10.
NG
>> Replace shift lock solenoid.
Continuity should exist.
AAT142A
WAT333
WAT334
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