Unlock Warning Switch Removal

Vehicle Interior. Corolla. Zre142 Aze141
Door Lock. Corolla. Zre142 Aze141

  1. TURN FRONT WHEELS TO FACE STRAIGHT AHEAD

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  3. REMOVE LOWER NO. 3 STEERING WHEEL COVER

  4. REMOVE LOWER NO. 2 STEERING WHEEL COVER

  5. REMOVE STEERING PAD

  6. REMOVE STEERING WHEEL ASSEMBLY

  7. REMOVE LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY

  8. REMOVE LOWER STEERING COLUMN COVER

  9. REMOVE UPPER STEERING COLUMN COVER

  10. REMOVE TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY

  11. REMOVE UPPER INSTRUMENT PANEL SUB-ASSEMBLY

  12. REMOVE COLUMN HOLE COVER SILENCER SHEET

  13. SEPARATE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY

  14. REMOVE INSTRUMENT PANEL SUB REINFORCEMENT

  15. REMOVE NO. 3 AIR DUCT SUB-ASSEMBLY

  16. REMOVE TRANSPONDER KEY AMPLIFIER

  17. REMOVE STOP LIGHT SWITCH ASSEMBLY

  18. REMOVE STEERING POST ASSEMBLY (for 2ZR-FE)

  19. REMOVE STEERING POST ASSEMBLY (for 2AZ-FE)

  20. REMOVE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY

  21. REMOVE STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY

  22. REMOVE IGNITION OR STARTER SWITCH ASSEMBLY (for Manual Transaxle)

  23. REMOVE IGNITION OR STARTER SWITCH ASSEMBLY (for Automatic Transaxle)

  24. REMOVE KEY INTERLOCK SOLENOID (for Automatic Transaxle)

  25. REMOVE SOLENOID WIRE (for Automatic Transaxle)

  26. REMOVE IGNITION SWITCH LOCK CYLINDER ASSEMBLY

  27. REMOVE UNLOCK WARNING SWITCH ASSEMBLY

Unlock Warning Switch -- Removal


CAUTION:
Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing the steering column (COROLLA_ZRE142 RM000000KT10H0X.html).


1. TURN FRONT WHEELS TO FACE STRAIGHT AHEAD


2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.


3. REMOVE LOWER NO. 3 STEERING WHEEL COVER


  1. for Type A:



      Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    1. Using a screwdriver with its tip wrapped with protective tape, disengage the claw to remove the lower No. 3 steering wheel cover.

      Text in Illustration
      *1
      Protective Tape


  1. for Type B:



      Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    1. Using a screwdriver with its tip wrapped with protective tape, insert the tip into service hole and disengage the 2 claws to remove the lower No. 3 steering wheel cover.

      Text in Illustration
      *1
      Service Hole
      *2
      Protective Tape


4. REMOVE LOWER NO. 2 STEERING WHEEL COVER


  1. for Type A:



      Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    1. Using a screwdriver with its tip wrapped with protective tape, disengage the claw to remove the lower No. 2 steering wheel cover.

      Text in Illustration
      *1
      Protective Tape


  1. for Type B:



      Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    1. Using a screwdriver with its tip wrapped with protective tape, insert the tip into service hole and disengage the 2 claws to remove the lower No. 2 steering wheel cover.

      Text in Illustration
      *1
      Service Hole
      *2
      Protective Tape


5. REMOVE STEERING PAD


  1. for Type A:



    1. Using a "TORX" socket wrench (T30), loosen the 2 "TORX" screws until the groove along the screw circumference catches on the screw case.


      Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal


      Text in Illustration
      *A
      w/o Steering Pad Switch
      *B
      w/ Steering Pad Switch
      *1
      Screw Case
      *2
      "Torx" Screw


    2. Corolla. Zre142 Aze141
    3. Pull out the steering pad from the steering wheel assembly and support the steering pad with one hand as shown in the illustration.

      NOTICE:
      When removing the steering pad, do not pull the airbag wire harness.


    4. Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    5. Disconnect the horn connector from the steering pad.

      Text in Illustration
      *1
      Protective Tape
    6. Using a screwdriver with its tip wrapped with protective tape, release the 2 airbag connector locks.

    7. Disconnect the 2 airbag connectors to remove the steering pad.

      NOTICE:
      When disconnecting any airbag connector, take care not to damage the airbag wire harness.


  1. for Type B:



      Corolla. Zre142 Aze141
    1. Using a screwdriver, push the 2 torsional springs to disengage the 2 pins.

      NOTICE:
      Do not drop the steering pad.
    2. Pull out the steering pad from the steering wheel assembly and support the steering pad with one hand.

      NOTICE:
      When removing the steering pad, do not pull the airbag wire harness.


    3. Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    4. Disconnect the horn connector from the steering pad.

      Text in Illustration
      *1
      Protective Tape
    5. Using a screwdriver with its tip wrapped with protective tape, release the 2 airbag connector locks.

    6. Disconnect the 2 airbag connectors to remove the steering pad.

      NOTICE:
      When disconnecting any airbag connector, take care not to damage the airbag wire harness.


6. REMOVE STEERING WHEEL ASSEMBLY


  1. for Type A:



      Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    1. Remove the steering wheel assembly set nut.

      Text in Illustration
      *a
      Matchmark
    2. Put matchmarks on the steering wheel assembly and steering main shaft.

    3. Disconnect the connectors from the spiral cable sub-assembly.



    4. Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    5. Using SST, remove the steering wheel assembly.

      Text in Illustration
      *a
      Turn
      *b
      Hold
      SST
      09950-50013(09951-05010,09952-05010,09953-05020,09954-05070)
      NOTICE:
      Apply a small amount of grease to the threads and tip of SST (09953-05020) before use.


  1. for Type B:



      Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    1. Remove the steering wheel assembly set nut.

      Text in Illustration
      *a
      Matchmark
    2. Put matchmarks on the steering wheel assembly and steering main shaft.

    3. Disconnect the connectors from the spiral cable sub-assembly.



    4. Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
    5. Using SST, remove the steering wheel assembly.

      Text in Illustration
      *a
      Turn
      *b
      Hold
      SST
      09950-50013(09951-05010,09952-05010,09953-05020,09954-05070)
      NOTICE:
      Apply a small amount of grease to the threads and tip of SST (09953-05020) before use.


7. REMOVE LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY


    Corolla. Zre142 Aze141
  1. Remove the 2 screws <B>.



    Corolla. Zre142 Aze141
  1. Disengage the 5 claws, 2 guides and 2 clips, and then remove the lower instrument panel finish panel sub-assembly.



8. REMOVE LOWER STEERING COLUMN COVER
NOTICE:
Removing the lower steering column cover in the incorrect order will cause the lower steering column cover to break.


    Corolla. Zre142 Aze141
  1. Push the right and left sides of the lower steering column cover, and disengage the 4 claws.



    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Insert your fingers into the opening of the tilt lever of the lower steering column cover to disengage the claw.

    HINT:
    Spread the claw to disengage it.


  1. Using a screwdriver, insert the tip into each service hole to disengage the 2 claws and remove the lower steering column cover as shown in the illustration.


    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal



9. REMOVE UPPER STEERING COLUMN COVER


    Corolla. Zre142 Aze141
  1. Disengage the claw and the 2 pins, and remove the upper steering column cover.



10. REMOVE TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY
  1. Disconnect the connectors from the turn signal switch assembly with spiral cable sub-assembly.



    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Use pliers to hold the clamp and raise the claw with a screwdriver. Remove the turn signal switch assembly with spiral cable sub-assembly from the steering column assembly.



11. REMOVE UPPER INSTRUMENT PANEL SUB-ASSEMBLY
HINT:
Refer to the instructions for Removal of the upper instrument panel (Link).


12. REMOVE COLUMN HOLE COVER SILENCER SHEET


    Corolla. Zre142 Aze141
  1. Turn back the floor carpet, and remove the 2 clips and column hole cover silencer sheet.



13. SEPARATE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY


    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Put matchmarks on the No. 2 steering intermediate shaft assembly and the steering intermediate shaft.

  1. Remove the bolt and separate the No. 2 steering intermediate shaft assembly from the steering intermediate shaft.



14. REMOVE INSTRUMENT PANEL SUB REINFORCEMENT


    Corolla. Zre142 Aze141
  1. Remove the 2 bolts and instrument panel sub reinforcement.



15. REMOVE NO. 3 AIR DUCT SUB-ASSEMBLY


    Corolla. Zre142 Aze141
  1. Disengage the 2 claws and remove the No. 3 air duct sub-assembly.



16. REMOVE TRANSPONDER KEY AMPLIFIER


    Corolla. Zre142 Aze141
  1. Slide the transponder key amplifier to disengage the 2 claws as shown in the illustration.



    Corolla. Zre142 Aze141
  1. Disconnect the connector and remove the transponder key amplifier.



17. REMOVE STOP LIGHT SWITCH ASSEMBLY


    Corolla. Zre142 Aze141
  1. Disconnect the connector.



    Corolla. Zre142 Aze141
  1. Turn the stop light switch assembly counterclockwise and remove the stop light switch assembly.



18. REMOVE STEERING POST ASSEMBLY (for 2ZR-FE)


    Corolla. Zre142 Aze141
  1. Separate the wire harness clamp from the power steering ECU assembly.

  1. Disconnect the 2 connectors from the power steering ECU assembly.

  1. Disconnect the connectors and disengage the wire harness clamps from the steering column assembly.



    Corolla. Zre142 Aze141
  1. Remove the bolt, 2 nuts and steering post assembly.

    NOTICE:
    1. Do not release the tilt lever when the steering column assembly is not installed on the vehicle.
    2. Do not drop or strike the steering column assembly. If dropped or struck, replace it with a new one.


19. REMOVE STEERING POST ASSEMBLY (for 2AZ-FE)


    Corolla. Zre142 Aze141
  1. Disconnect the connector from the power steering ECU assembly.

    HINT:
    Pull out the lock of the lock lever, disengage the claw, and turn the lock lever to disconnect the connector, as shown in the illustration.


    Corolla. Zre142 Aze141
  1. Disconnect the connector from the power steering ECU assembly.



    Corolla. Zre142 Aze141
  1. Separate the wire harness clamp from the power steering ECU assembly.



    Corolla. Zre142 Aze141
  1. Remove the bolt, 2 nuts, and steering post assembly.

    NOTICE:
    1. Do not release the tilt lever when the steering column assembly is not installed on the vehicle.
    2. Do not drop or strike the steering column assembly. If dropped or struck, replace it with a new one.


20. REMOVE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY


    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Put matchmarks on the No. 2 steering intermediate shaft assembly and the steering column assembly.



    Corolla. Zre142 Aze141
  1. Remove the bolt and the No. 2 steering intermediate shaft assembly from the steering column assembly.



21. REMOVE STEERING COLUMN UPPER WITH SWITCH BRACKET ASSEMBLY
  1. Secure the steering column assembly in a vise.

  1. Using a center punch, mark the center of the tapered-head bolt.

  1. Using a 3 to 4 mm (0.118 to 0.157 in.) diameter drill bit, drill a hole in the tapered-head bolt.



    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Using a screw extractor, remove the tapered-head bolt, and then remove the steering column upper with switch bracket assembly from the steering column assembly.



22. REMOVE IGNITION OR STARTER SWITCH ASSEMBLY (for Manual Transaxle)


    Corolla. Zre142 Aze141
  1. Remove the 2 screws and the ignition or starter switch assembly from the steering column upper bracket.



23. REMOVE IGNITION OR STARTER SWITCH ASSEMBLY (for Automatic Transaxle)


    Corolla. Zre142 Aze141
  1. Remove the solenoid wire connector from the ignition or starter switch assembly.



    Corolla. Zre142 Aze141
  1. Remove the 2 screws and the ignition or starter switch assembly from the steering column upper bracket.



24. REMOVE KEY INTERLOCK SOLENOID (for Automatic Transaxle)


    Corolla. Zre142 Aze141
  1. Remove the 2 screws and the key interlock solenoid from the steering column upper bracket.



    Corolla. Zre142 Aze141
  1. Disconnect the solenoid wire connector from the key interlock solenoid.



25. REMOVE SOLENOID WIRE (for Automatic Transaxle)


    Corolla. Zre142 Aze141
  1. Remove the solenoid wire from the steering column upper bracket.



26. REMOVE IGNITION SWITCH LOCK CYLINDER ASSEMBLY


    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Turn the ignition switch lock cylinder assembly to the ACC position.

  1. Insert a screwdriver into the hole of the steering column upper with switch bracket assembly as shown in the illustration. Pull the ignition switch lock cylinder assembly until its claw contacts the stopper of the steering column upper with switch bracket assembly.

    NOTICE:
    Make sure to pull the ignition switch lock cylinder assembly until its claw contacts the stopper of the steering column upper with switch bracket assembly. Failure to do so will affect later work operations.


    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Insert a screwdriver into the hole of the steering column upper with switch bracket assembly. Tilt the screwdriver as shown in the illustration to disengage the claw of the ignition switch lock cylinder assembly, and pull out the ignition switch lock cylinder assembly.



27. REMOVE UNLOCK WARNING SWITCH ASSEMBLY


    Corolla. Zre142 Aze141.Door Lock.Power Door Lock Control System.Unlock Warning Switch  Removal
  1. Remove the unlock warning switch assembly by pushing up the center part and releasing the 2 claws.

    HINT:
    Slide the unlock warning switch in the direction shown by the arrow in the illustration to remove it.