Adjust shift linkage as described earlier. Put the selector lever in the
Neutral position (3rd detent from the rear).
Remove the transmission manual lever retaining nut and pull the lever off
the switch.
Loosen (do not remove) the two switch retaining bolts and remove the alignment
pin hole screw at the bottom of the switch.
Fig. 1: Adjusting the GLC neutral safety switch
Gently rotate the switch back and forth while attempting to insert a 0.08
in. (2mm) diameter pin into the alignment pin hole. When alignment is correct,
the pin will slide through the hole in the internal rotor. Tighten the switch
attaching bolts and remove the pin.
Reinstall the alignment pin hole screw. Position the manual lever back onto
the switch shaft, then install the washer and nut.
Check switch operation. If the switch still does not work, i.e., the car
starts in positions other than Park or Neutral, replace the switch. With the
key in the ON (not START) position, shift the
selector into Reverse; the backup lights should be on. If not, check the bulbs
and wiring or replace the inhibitor switch.
Place the transmission selector lever in the Neutral position.
Loosen the neutral switch attaching screws.
Position the manual shift lever shaft in the Neutral position by adjusting
the range select lever. The proper Neutral position is where the slot of the
manual shaft is positioned vertically and the detent position in the shaft
engages correctly with a click sound.
Move the neutral switch so that the identification marks on the switch body
and the sliding plate are aligned.
Tighten the neutral switch adjusting screws.
Check the adjustment by trying to start the engine in all gears. It should
only start in Park and Neutral.
Move the switch body so that the screw hole in the case aligns with the
small hole inside the switch.
Fig. 2: Inhibitor switch adjustment — 929
and RX-7
Check the alignment by inserting a 0.08 in. (2mm) diameter pin through the
holes. Once the proper alignment is obtained, remove the pin and tighten the
switch mounting bolts. Install and lightly tighten the screw.
Check the system for proper operation. If the switch still does not work
(it still allows the car to start in positions other than Park or Neutral),
replace the switch. With the key in the ON (not START)
position, shift the selector into Reverse; the backup lights should be on.
If not, check the bulbs and wiring or replace the inhibitor switch.