Toyota 4Runner 2001-06

Turn Signal (Combination) Switch

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Removal & Installation



2001-02 Models

The individual switches within the combination switch are individually replaceable after the combination assembly is removed and disassembled. It is not difficult but is exacting, requiring careful removal of wire terminals from the multi-pin connector.

  1. Disarm the SRS system. For additional information, please refer to the following topic(s): -CHASSIS ELECTRICAL, Air Bag (Supplemental Restraint System)-.
    CAUTION
    Work must NOT be started until after 90 seconds from the time the ignition switch is turned to the LOCK position and the negative battery cable is disconnected from the battery. The SRS is equipped with a back-up power source so that if the work is started within the 90 seconds of disconnecting the negative terminal, the SRS may be deployed.

  2.  
  3. Ensure the ignition is switched OFF .
  4.  
  5. Remove the steering wheel pad and remove the steering wheel. Use of a steering wheel puller is strongly recommended. Always scribe matchmarks on the wheel hub and the steering column so the wheel can be reinstalled straight.
  6.  
  7. Remove the upper and lower steering covers. Remove the retaining screws holding the combination switch to the column.
  8.  
  9. Trace the harness down the column, and then unplug the connector. Release the harness from the harness clamp(s).
  10.  
  11. Remove the combination switch from the column and place it on the workbench.
  12.  
  13. Disconnect the air bag harness (if equipped).
  14.  
  15. You will be able to remove the two mounting screws retaining the arm (wiper etc.) to replace.

    Click image to see an enlarged view

    Fig. The switches are secured to the switch body with screws

  16.  
  17. Otherwise, identify the component to be replaced. Identify each wire color running from the switch (to be replaced) to the connector. These wires (only) will need to be removed so the new ones can be installed.
  18.  
  19. The cover on the back of the connector must be raised to allow the wire terminal to be removed.
  20.  
  21. Diagram each wire and terminal to be removed. The new wiring must be installed exactly as original. From the front or plug end, insert a small pick or probe between the locking lug and the wire terminal. Pry down the locking lug with the tool and pull the terminal out from the rear. Repeat the procedure for each wire from the switch to be replaced.

    Click image to see an enlarged view

    Fig. From the front or plug end, insert a small pick or probe between the locking lug and the wire terminal

  22.  
  23. With the wires free, remove the retaining screws holding the switch to be changed and remove it. The lighting control stalk has a spring and small ball with it; do NOT lose them.
  24.  

To install:

  1. Assemble the new component(s) onto the switch. Retaining screws should be tight enough to hold but not over tight. Components with cracked plastic will NOT stay in place.
  2.  
  3. Track the new wires into the harness and place each wire loosely in its correct terminal socket.
  4.  
  5. Use the removal tool to push on the back of the terminal (NOT on the wire) and force the terminal into the connector. Each terminal must be pushed in until it overrides the locking lug. Test each one by gently pulling the wire backwards; it should be positively locked in place.

    Click image to see an enlarged view

    Fig. Each terminal must be pushed in until it overrides the locking lug

  6.  
  7. Fit the combination switch assembly onto the steering column and install the retaining screws. Install the upper and lower steering column covers.
  8.  
  9. Install the wire harness into the clips and retainers; connect the connectors.
  10.  
  11. Align the matchmarks and reinstall the steering wheel and pad.
  12.  
  13. Turn the ignition switch ON and check the function of each control item.
  14.  

2003-05 Models

The individual switches within the combination switch are individually replaceable after the combination assembly is removed and disassembled. It is not difficult but is exacting, requiring careful removal of wire terminals from the multi-pin connector.

  1. Disarm the SRS system. For additional information, please refer to the following topic(s): -CHASSIS ELECTRICAL, Air Bag (Supplemental Restraint System)-.
    CAUTION
    Work must NOT be started until after 90 seconds from the time the ignition switch is turned to the LOCK position and the negative battery cable is disconnected from the battery. The SRS is equipped with a back-up power source so that if the work is started within the 90 seconds of disconnecting the negative terminal, the SRS may be deployed.

  2.  
  3. Remove the steering wheel. For additional information, see the following topic; -Steering Wheel, Removal & Installation-.
  4.  
  5. Remove the three screws and remove the upper and lower steering column covers.
  6.  
  7. Disconnect the spiral cable connectors, remove the four mounting screws and remove the spiral cable assembly.
  8.  
  9. Disconnect the three wiring harnesses and remove the three screws to remove the turn signal switch assembly.

    Click image to see an enlarged view

    Fig. Location of the mounting screws to remove the steering column covers-2003-05 Models



    Click image to see an enlarged view

    Fig. Disconnect the wiring harnesses, remove the screws and remove the turn signal switch assembly-2003-05 Models

  10.  

To install:

  1. Install the turn signal switch assembly and tighten the screws. Connect the wiring harnesses.
  2.  
  3. Check that the front wheels are facing straight ahead. Turn the spiral cable counterclockwise by hand until it becomes harder to turn. Then rotate the spiral cable clockwise about 2.5 turns to align the mark. Install the spiral cable with the four screws. Connect the two connectors to the spiral cable.
  4.  
  5. Install the steering column covers.
  6.  
  7. Install the steering wheel.
  8.  

 
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