Infiniti G20 (P11). Manual — part 69
Wiring Diagram — SHIFT —
NCAT0104
TAT242
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
A/T SHIFT LOCK SYSTEM
Wiring Diagram — SHIFT —
AT-273
Diagnostic Procedure
NCAT0105
SYMPTOM 1:
I
Selector lever cannot be moved from “P” position with key
in ON position and brake pedal applied.
I
Selector lever can be moved from “P” position with key in
ON position and brake pedal released.
I
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. It can be removed when selector lever is set to
any position except “P”.
1
CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK
©
GO TO 2.
NG
©
Repair key interlock cable. Refer to AT-278.
2
CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK
©
GO TO 3.
NG
©
Check selector lever. Refer to “ON-VEHICLE SERVICE — PNP Switch and Control
Cable Adjustment”, AT-281.
3
CHECK POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between A/T device harness connector M48 terminal 5 (PU) and ground.
Voltage: Battery voltage
SAT663K
OK or NG
OK
©
GO TO 5.
NG
©
GO TO 4.
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
AT-274
4
DETECT MALFUNCTIONING ITEM
Check the following items:
1. Harness for short or open between ignition switch and A/T device harness terminal 5
2. Fuse
3. Ignition switch (Refer to EL-9, “POWER SUPPLY ROUTING”.)
OK or NG
OK
©
GO TO 5.
NG
©
Repair or replace damaged parts.
5
CHECK INPUT SIGNAL A/T DEVICE
Turn ignition switch to “OFF” position.
I
Check voltage between A/T device harness connector M48 terminal 7 (R/G) and ground.
Voltage:
Brake pedal depressed:
Battery voltage
Brake pedal released:
0V
SAT664K
OK or NG
OK
©
GO TO 7.
NG
©
GO TO 6.
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont’d)
AT-275
6
DETECT MALFUNCTIONING ITEM
Check the following items:
1. Harness for short or open between battery and stop lamp switch harness connector 1
2. Harness for short or open between stop lamp switch harness connector 2 and A/T device harness connector 7
3. Fuse
4. Stop lamp switch
a. Check continuity between stop lamp switch harness connector M32 terminals 1 (R/Y) and 2 (R/G).
SAT661K
Check stop lamp switch after adjusting brake pedal — refer to BR-12, “BRAKE PEDAL AND BRACKET”.
OK or NG
OK
©
GO TO 7.
NG
©
Repair or replace damaged parts.
7
CHECK GROUND CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness terminal 6 and ground.
Continuity should exist.
If OK, check harness for short to ground and short to power.
SAT857J
OK or NG
OK
©
GO TO 8.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont’d)
AT-276
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