Shift Interlock: Testing and Inspection

Diagnostic Procedure
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. 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.

2. CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK >> GO TO 3
NG >> Check selector lever. Refer to "Park/Neutral Position (PNP) Switch Adjustment" and "Manual Control Linkage Adjustment".

3. CHECK POWER SOURCE





1. Turn ignition switch to ON position. (Do not start engine.)
2. Check voltage between ASCD brake switch (shift lock brake switch) harness connector M48 terminal 1 G/W and ground.
Does battery voltage exist?
Yes >> GO TO 4
No >> Check the following items:
^ Harness for short or open between battery and ASCD brake switch (shift lock brake switch) harness terminal
^ Fuse
^ Ignition switch

4. CHECK INPUT SIGNAL (BRAKE SWITCH)





Turn ignition switch to ON position. (Do not start engine.)
^ Check voltage between A/T device harness connector M35 terminal 2 (B/W) and ground.
OK or NG
OK >> GO TO 5
NG >> Check the following items:
^ Harness for short or open between A/T device harness connector 2 and ASCD brake switch (shift lock brake switch) harness connector 2
^ ASCD brake switch (shift lock brake switch)

5. 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 1 and _ ground.
OK or NG
OK >> GO TO 6
NG >> Repair harness or connector.

6. CHECK PARK POSITION SWITCH
Refer to "PARK POSITION SWITCH".
OK or NG
OK >> GO TO 7
NG >> Replace park position switch.

7. CHECK SHIFT LOCK SOLENOID
Refer to "SHIFT LOCK SOLENOID".
OK or NG
OK >> GO TO 8
NG >> Replace shift lock solenoid.

8. 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 >>
1. Perform A/T device input/output signal inspection test.
2. If NG, recheck harness connector connection.

Component Check
SHIFT LOCK SOLENOID





^ Check operation by applying battery voltage between shift lock solenoid connector terminals 1 and 3.

PARK POSITION SWITCH








^ Check continuity between A/T device (park position switch) bareness connector terminal 1 and A/T device harness connector terminal 1.

ASCD BRAKE SWITCH (SHIFT LOCK BRAKE SWITCH)








^ Check continuity between ASCD brake switch (shift lock brake switch) harness connector terminals 1 and 2.
Check ASCD brake switch (shift lock brake switch) after adjusting brake pedal.