PARK/NEUTRAL POSITION FUNCTION
Gear-shift position sensor has a start inhibit function to prevent starting of the engine while a gear is selected. This function prevents the engine being started unless Park/Neutral position (PNP) is selected. This prevents vehicle from inadvertently lurching forwards when started.
SHIFT LOCK
To prevent the gear selector being inadvertently moving from Park position, vehicles are equipped with an electrically operated shift lock function. This locks the interlock pin in the gear selector lever in interlock section, locking selector lever in Park. Figure A. To move the lever from this position, ignition must be switched on and brake pedal depressed. Switching on ignition while depressing brake pedal activates a solenoid in the gear selector unit. Solenoid lock pin is pushed in and gear selector lock button can be pressed down as usual to select another gear. See .
IGNITION SWITCH INTERLOCK
Shift Lock functions are complemented by an ignition switch interlock. System is mechanically connected to ignition switch by a cable. Keylock function is controlled by the position of the lock plunger in the ignition switch and by the position of the gear selector lever. This means that the lever must be in Park before key can be withdrawn from ignition switch, and that key must be turned to position I or II before lever can be moved from that position. Ignition switch interlock function is only available in combination with Shift Lock.
SHIFT LOCK OVERRIDE
Note. For vehicles with ignition switch interlock, ignition key must first be turned to position I or II.
In order for gear selector to be moved from Park position when vehicle lacks battery voltage, or if there is a fault in the Shift Lock mechanism, it is possible to disconnect the interlock mechanism mechanically. Mechanical release consists of a push button marked "SHIFT LOCK OVERRIDE" on the gear selector assembly. When this button is pressed, solenoid lock pin is released and gear selector can be moved from Park. In earlier models, mechanical release was located under gear selector brush beside the text "SHIFTLOCK RELEASE". Mechanical disconnect must be used together with ignition key every time gear selector is moved from Park as long as fault remains.
There is a micro-switch in the electrical circuit between the brake lamp switch and solenoid. Microswitch only closes the circuit in Park position, so that the solenoid is not activated every time the driver presses the brake pedal when driving.
Scheme 47
IGNITION LOCK SYSTEM
Move gear shift lever to Park. Ignition key should be easy to remove from ignition lock. If key cannot be removed, cable is too short. Adjust cable sleeve at gear selector lever end until key can be removed easily.
Move gear shift lever from Park to another position. It should not be possible to remove the ignition key from ignition lock. If key can be removed, cable is too long. Adjust cable sleeve at gear lever end until key cannot be removed.
Move gear shift lever to Park and turn ignition key to position I or II. Lever should now be movable from Park. Return lever to Park and remove ignition key. Press override button. It should not be possible to move lever from Park. Override function should operate only when ignition key is in position I or II.
GEAR SELECTOR LINKAGE
- Raise and support vehicle. Working at transmission, loosen gear selector arm/control rod nut so that rod is free to move in its slot. NOTE: Parking brake must not be applied when checking selector linkage.
- Move gear selector lever to Park. Gently press lever forward to eliminate play and use support to retain lever in position.
- Press selector link on transmission backward into Park. Check that Park position is in this position by trying to turn drive shaft.
- Tighten control rod/gear lever arm nut to 18 ft. lbs. (25 N.m). Remove support from gear selector lever.
- Check adjustment. Move gear selector lever to position D. Check for clearance in direction of position N. Move lever to position 3. Check for clearance in direction of position L. Adjustment is complete if all positions are properly spaced and selector slides smoothly into each position.
Transferring Components To New Gear Selector
- Remove selector unit from housing. Remove spring clip, rubber grommet and gear lever arm. Tap out shaft. (Scheme 48)
- Remove indicator panel by pressing in rear edge to release catch. Cut off locking clips and remove light strip with indicator, cover and spacers. (Scheme 49)
- Transfer two spacers located behind light strip. Fit indicator and strip into gear selector unit. Install retaining clips. (Scheme 50)
- Install indicator panel. Ensure Shift Lock Override button is set in place correctly and is not damaged. (Scheme 51)
- Install gear selector unit into housing. Install shaft, spring clip and rubber grommet.
Scheme 48
Scheme 49
Scheme 50
Scheme 51
Scheme 52
- Install gear selector unit into vehicle. Position wiring under center console. Tighten mounting bolts to 71 INCH. lbs. (8 N.m).
- Install new shift knob. Ensure that plastic collar is in place and correctly positioned. (Scheme 52)
- Connect wire harness connector.
- Raise and support vehicle. Connect shift cable to gear selector unit. Move selector to Park. Install cable snap ring and connect control rod to gear lever arm. Install rod with washer and retaining clip. Ensure ring is seated properly in groove.
- Lower vehicle. Connect ignition lock cable if equipped. See «IGNITION LOCK CABLE»(ref-160156-S38021326562004020200000).
- Install interior components. (Scheme 55)
- Connect negative battery cable.
- Check function of gear selector. Adjust when working properly. See «GEAR SELECTOR LINKAGE»(ref-160156-S14824070402004020400000) under ADJUSTMENTS.
- Check function of ignition lock. See «IGNITION LOCK SYSTEM»(ref-160156-S10947312002004012900000) under TROUBLE SHOOTING.
- Check Shift Lock Override function. See «SHIFT LOCK OVERRIDE»(ref-160156-S33036294692004020400000) under TROUBLE SHOOTING.
Scheme 53
Scheme 54
Scheme 55
- Disconnect negative battery cable.
- Remove knee bolster cover underneath driver-side dashboard. (Scheme 53)
- Remove steering wheel adjusting lever and column covers. (Scheme 54)
- Remove ash tray. Remove screws in storage compartment. Remove console mounting screws and cover under parking brake. (Scheme 55)
- Disconnect panel connectors and remove panel from center console. Put gear selector in Park. Turn ignition key to position I or II.
- Disconnect cable from ignition switch. Press in cable locking tabs and withdraw cable. Remove cable from ignition switch. (Scheme 56) NOTE: Note ignition lock cable routing before removing.
- Remove cable adjuster locking clip at gear selector lever end. Ensure that gear shift lever is in Park. Raise edge of rubber strip around gear lever and unhook cable from lever arm. Remove cable. (Scheme 57)
Scheme 56
Scheme 57
Scheme 58
- Route new cable carefully under wiring harnesses. NOTE: Ensure gear selector is in Park.
- Connect cable adjuster at gear selector lever end and install retaining clip.
- Press in locking tabs on cable end. Press in locking tab so cable can be hooked easily onto gear selector lever arm. Release locking tab. (Scheme 57)
- Ensure that ball on cable end is properly seated. Move gear shift lever from Park to another position. Adjust cable at lever end until clearance between locking tabs at ignition switch end is approximately.276" (7 mm). (Scheme 58) Move gear selector lever to Park. Check that clearance between cable and gear lever arm at selector end is approximately.02" (0.5 mm).
- Insert cable through knee bolster bracket and over bolster. (Scheme 59)
- Turn ignition key to position I or II. Press cable into place in ignition switch. Ensure that locking tabs are securely engaged in ignition lock.
- Install center console components. Install steering wheel column covers and steering wheel adjustment lever. Install knee bolster cover.
- Connect negative battery cable.
- Check function. See «IGNITION LOCK SYSTEM»(ref-160156-S10947312002004012900000) under TROUBLE SHOOTING.
