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DescriptionNJAT0102+The mechanical key interlock mechanism also operates as a shift lock:
With the key switch turned to ON, the selector lever cannot be shifted from ªPº (parking) to any other
position unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from ªPº to any other position.
The key cannot be removed unless the selector lever is placed in ªPº.
+The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock
solenoid and by the operation of the rotator and slider located inside the key cylinder.
Shift Lock System Electrical Parts LocationNJAT0103
SAT006K
A/T SHIFT LOCK SYSTEM
Description
AT-343
Page 346 of 2898
Wiring Diagram Ð SHIFT ÐNJAT0104
HAT088
A/T SHIFT LOCK SYSTEM
Wiring Diagram Ð SHIFT Ð
AT-344
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Diagnostic ProcedureNJAT0105SYMPTOM 1:
+Selector lever cannot be moved from ªPº position with key
in ON position and brake pedal applied.
+Selector lever can be moved from ªPº position with key in
ON position and brake pedal released.
+Selector lever can be moved from ªPº position when key
is removed from key cylinder.
SYMPTOM 2:
Ignition key cannot be removed when selector lever is set to
ªPº position. It can be removed when selector lever is set to
any position except ªPº.
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-349.
2 CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK©GO TO 3.
NG©Check selector lever. Refer to ªON-VEHICLE SERVICE Ð PNP Switch and Control
Cable Adjustmentº, AT-352.
3 CHECK POWER SOURCE
1. Turn ignition switch to ªONº position.
(Do not start engine.)
2. Check voltage between stop lamp switch harness terminal 1 and ground.
Voltage: Battery voltage
SAT007K
OK or NG
OK©GO TO 4.
NG©Check the following items:
1. Harness for short or open between battery and stop lamp switch harness terminal 1
2. Fuse
3. Ignition switch (Refer to EL-10, ªPOWER SUPPLY ROUTINGº.)
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
AT-345
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4 CHECK INPUT SIGNAL (A/T DEVICE)
Turn ignition switch to ªONº position.
(Do not start engine.)
+Check voltage between A/T device harness terminal 2 and ground.
Voltage:
Brake pedal depressed:
Battery voltage
Brake pedal released:
0V
SAT008K
OK or NG
OK©GO TO 5.
NG©Check the following items:
1. Harness for short and 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 2.
3. Fuse
4. Stop lamp switch (Refer to ªA/T DEVICE CHECKº, AT-348.)
5 CHECK GROUND CIRCUIT
1. Turn ignition switch to ªOFFº position.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness terminal 3 and ground.
Continuity should exist.
If OK, check harness for short to ground and short to power.
SAT009K
OK or NG
OK©GO TO 6.
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-346
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6 CHECK RELAY CIRCUIT
1. Turn ignition switch to ON.
+Check voltage between terminal4-3and2-3.
SAT010K
OK or NG
OK©GO TO 7.
NG©Replace A/T device.
7 CHECK PARK POSITION SWITCH
Refer to ªA/T device Checkº, AT-348.
OK or NG
OK©GO TO 8.
NG©Replace A/T device.
8 CHECK SHIFT LOCK SOLENOID
Refer to ªA/T device Checkº, AT-348.
OK or NG
OK©GO TO 9.
NG©Replace A/T device.
9 SHIFT LOCK OPERATION
1. Reconnect shift lock harness connector.
2. Turn ignition switch from ªOFFº to ªONº position. (Do not start engine.)
3. Recheck shift lock operation.
OK or NG
OK©INSPECTION END
NG©1. Perform A/T device input/output signal inspection test.
2. If NG, recheck harness connector connection.
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont'd)
AT-347
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A/T DEVICE CHECK=NJAT0105S011. Shift Lock SolenoidNJAT0105S0101+Check operation sound.
When ignition switch is turned to ªONº position and selector
lever is set in ªPº position.
Brake pedal Operation sound
Depressed Yes
Released No
SAT011K
2. Park Position SwitchNJAT0105S0102+Check resistance between A/T device harness terminal 2 and
3.
Condition Resistance
When selector lever is set in ªPº position and selector
lever button is released111W
When selector lever is not set in ªPº position and
selector lever button is released0W
SAT861JA
STOP LAMP SWITCHNJAT0105S02+Check continuity between terminals 1 and 2.
Condition Continuity
When brake pedal is depressed Yes
When brake pedal is released No
Check stop lamp switch after adjusting brake pedal Ð refer to
BR-12, ªBRAKE PEDAL AND BRACKETº.
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure (Cont'd)
AT-348
Page 351 of 2898
ComponentsNJAT0107
SAT996J
CAUTION:
+Install key interlock cable in such a way that it will not be
damaged by sharp bends, twists or interference with adja-
cent parts.
+After installing key interlock cable to control device, make
sure that casing cap and bracket are firmly secured in
their positions.
SAT853J
RemovalNJAT01081. Unlock slider by squeezing lock tabs on slider from adjuster
holder and remove interlock rod from cable.
KEY INTERLOCK CABLE
Components
AT-349
Page 352 of 2898
SAT854J
2. Remove lock plate from steering lock assembly and remove
key interlock cable.
SAT854J
InstallationNJAT01091. Turn ignition key to lock position.
2. Set A/T selector lever to P position.
3. Set key interlock cable to steering lock assembly and install
lock plate.
4. Clamp cable to steering column and fix to control cable with
band.
SAT804E
5. Insert interlock rod into adjuster holder.
SAT805E
6. Install casing cap to bracket.
7. Move slider in order to fix adjuster holder to interlock rod.
KEY INTERLOCK CABLE
Removal (Cont'd)
AT-350