GM Corvette 1984-1996 Repair Guide

Turn Signal Switch

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REMOVAL & INSTALLATION



1984-88 Vehicles

See Figure 1

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the steering wheel, as outlined earlier in this section.
  4.  
  5. Remove the steering column/dash trim cover.
  6.  
  7. Remove the C-ring plastic retainer.
  8.  
  9. Install the special lockplate compressor tool (J-23653 and J-23063) over the steering shaft. Place 5 / 16 in. nut under each tool leg and reinstall the star screw to prevent the shaft from moving.
  10.  
  11. Compress the lockplate by turning the shaft nut clockwise until the C-ring can be removed.
  12.  
  13. Remove the tool and lift out the lockplate, horn contact carrier, and the upper bearing preload spring.
  14.  
  15. Pull the switch connector out of the mast jacket and tape the upper part to facilitate switch removal.
  16.  
  17. Remove the turn signal lever. Push the flasher in, then unscrew it.
  18.  
  19. Position the turn signal and shifter housing in the Low position. Remove the switch by pulling it straight up while guiding the wiring harness out of the housing.
  20.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the turn signal switch and related components-1984-88 vehicles

To install:
  1. Install the replacement switch by working the harness connector down through the housing and under the mounting bracket.
  2.  
  3. Install the harness cover and clip the connector to the mast jacket.
  4.  
  5. Install the switch mounting screws, signal lever and the flasher knob.
  6.  
  7. With the turn signal lever in neutral and the flasher knob out, install the upper bearing preload spring, horn contact carrier, and lockplate onto the shaft.
  8.  
  9. Position the tool as in Step 5, and compress the plate far enough to allow the C-ring to be installed.
  10.  
  11. Remove the tool, then install the plastic C-ring retainer.
  12.  
  13. Install the column/dash trim cover and steering wheel.
  14.  
  15. Connect the negative battery cable.
  16.  

1989-96 Vehicles

See Figures 2, 3, 4, 5 and 6

Some of these vehicles may be equipped with a Supplemental Inflatable Restraint (SIR) air bag system, it is imperative that the disarming procedure is followed before repairs, and that the coil centering and rearming procedures are followed after repairs. Although it may be possible to perform this procedure with the steering column installed in the vehicle, but lowered for access, the manufacturer suggests that the column be removed.1

  1. For 1990-96 vehicles, properly disable the SIR system. Place the ignition switch to the LOCK position in order to prevent uncentering of the coil assembly.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Properly remove and store the inflator module, if equipped with an air bag, then remove the steering wheel. Either remove the column from the vehicle or lower it for access.
  6.  
  7. If equipped with a SIR system, remove the coil assembly retaining ring. Remove the coil assembly and allow it to hang freely from the wiring.
  8.  

The coil assembly will become uncentered if the steering column is separated from the steering gear and allowed to rotate or the center spring of the coil assembly is pushed down, letting the hub rotate while the coil is removed from the steering column. In the event this should occur, follow the recommended procedure for recentering of the coil in order to avoid accidental deployment of the air bag or damage to the internal components of the steering column.

Click image to see an enlarged view

Fig. Fig. 2: Exploded view of the SIR coil assembly-1996 vehicle shown, others similar

  1. Remove the wave washer.
  2.  
  3. Remove the shaft lock retaining ring using tool J-23653-C or equivalent, shaft lock compressor. Discard the old ring.
  4.  



Click image to see an enlarged view

Fig. Fig. 3: You must use the proper tool to remove the shaft lock retaining ring

  1. Remove the shaft lock, turn signal canceling cam and upper bearing assembly.
  2.  



Click image to see an enlarged view

Fig. Fig. 4: Exploded view of the upper shaft components-1996 vehicle shown, others similar

  1. Move the multi-function lever to the RIGHT TURN position. Remove the column housing cover end cap by pulling toward the vehicle front. Disconnect the electrical harness connector and remove the turn signal lever by pulling toward the driver door.
  2.  
  3. Remove the hazard knob retaining screw and assembly.
  4.  
  5. Remove the turn signal switch arm and screws.
  6.  
  7. Remove the turn signal switch screws.
  8.  



Click image to see an enlarged view

Fig. Fig. 5: Turn signal removal preparation

  1. Disconnect the switch harness connector from the bulkhead connector and remove the wiring protector.
  2.  
  3. Remove the horn pad ground wiring assembly from slot "D" of the switch connector.
  4.  
  5. Attach a length of mechanic's wire to the switch harness to aid in reinstallation and gently pull the assembly up through the housing. Leave the wire routed through the column in order to pull the new harness back into position.
  6.  
  7. Remove the switch and harness from the vehicle.
  8.  



Click image to see an enlarged view

Fig. Fig. 6: Exploded view of the turn signal switch

To install:
  1. Connect the horn pad ground wiring assembly to slot "D" of the turn signal switch connector.
  2.  
  3. Using the mechanic's wire, pull the switch harness through the column and connect to the bulkhead connector.
  4.  
  5. Install the harness wiring protector.
  6.  
  7. Position the turn signal switch assembly and install the attaching screws. Tighten the screws to 30 inch lbs. (3.4 Nm).
  8.  
  9. Install the switch arm and mounting screws. Tighten the screws to 20 inch lbs. (2.3 Nm).
  10.  
  11. Install the hazard knob assembly and the multi-function lever.
  12.  
  13. Install the inner race, the upper bearing race seat, and the upper bearing spring.
  14.  
  15. Lubricate the friction surfaces using synthetic grease, then install the turn signal canceling cam.
  16.  
  17. Position the shaft lock. Install the a new shaft lock retaining ring using tool J-23653-C or equivalent. Be sure the ring is firmly seated in the groove of the shaft.
  18.  
  19. Install the wave washer.
  20.  
  21. Install the coil assembly, making sure it is properly centered.
  22.  
  23. Position and secure the steering column, as necessary.
  24.  
  25. Install the steering wheel and the inflator module.
  26.  
  27. Connect the negative battery cable and, if equipped, enable the SIR system as outlined in Chassis Electrical of this repair guide.
  28.  

 
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