Infiniti QX4 (R50). Manual — part 68
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. Refer to wiring diagram — SHIFT —.
Continuity should exist.
If OK, check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 8.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
8
CHECK RELAY CIRCUIT
1. Turn ignition switch to ON and OFF position.
I
Check continuity between terminals 1, 2, 3 and 5.
SAT775J
Yes or No
Yes
©
GO TO 9.
No
©
Replace relay.
9
CHECK PARK POSITION SWITCH
I
Check continuity between A/T device harness terminal 6 and relay (park position switch) harness terminal 1.
SAT180K
OK or NG
OK
©
GO TO 10.
NG
©
Replace park position switch.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont’d)
AT-269
10
CHECK SHIFT LOCK SOLENOID
I
Check operation by applying battery voltage shift lock solenoid harness terminals 1 and 3.
SAT762J
OK or NG
OK
©
GO TO 11.
NG
©
Replace shift lock solenoid.
11
CHECK SHIFT LOCK OPERATION
1. Reconnect shift lock harness connector.
2. Turn ignition switch from OFF to ON position. (Do not start engine.)
3. Recheck shift lock operation.
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 12.
12
CHECK A/T DEVICE INSPECTION
1. Perform A/T device input/output signal inspection test.
2. If NG, recheck harness connector connection.
OK or NG
OK
©
INSPECTION END
NG
©
Repair or replace damaged parts.
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont’d)
AT-270
Components
NBAT0097
SAT147K
CAUTION:
I
Install key interlock cable in such a way that it will not be
damaged by sharp bends, twists or interference with adja-
cent parts.
I
After installing key interlock cable to control device, make
sure that casing cap and bracket are firmly secured in
their positions. If casing cap can be removed with an
external load of less than 39.2 N (4.0 kg, 8.8 lb), replace
key interlock cable with new one.
SAT353I
Removal
NBAT0098
Unlock slider from adjuster holder and remove rod from cable.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
KEY INTERLOCK CABLE
Components
AT-271
SAT354I
Installation
NBAT0099
1.
Set key interlock cable to steering lock assembly and install
lock plate.
2.
Clamp cable to steering column and fix to control cable with
band.
3.
Set selector lever to P position.
SAT355I
4.
Insert interlock rod into adjuster holder.
SAT356I
5.
Install casing cap to bracket.
6.
Move slider in order to fix adjuster holder to interlock rod.
KEY INTERLOCK CABLE
Installation
AT-272
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