Shift Interlock Systems: Other Chevrolet Blazer S15 facelift

STEERING COLUMN ELECTRIC PARK LOCK (FLOOR SHIFT ONLY)

If the vehicle is equipped with a floor-mounted console gear shifter, an added safety feature is an electric park lock system in the steering column. The electric park lock system prevents the steering wheel from being locked when the transmission is in gear and the vehicle is moving. The column ignition lock system consists of a steering column electric park lock and a park position switch, that is located in the stoplamp switch. The park key lock actuator contains a spring-loaded pin that mechanically prevents the ignition key cylinder from being turned to the LOCK position when the transmission is not in Park. If vehicle power is lost or the transmission is not in Park, the operator will not be able to turn the ignition key to the LOCK position and will not be able to remove the ignition key from the column.

SHIFT LOCK BYPASS PROCEDURE (FLOOR SHIFT ONLY)

In the event service is required, a park lock solenoid manual release lever is located on the top right side of the floor shift assembly, under the gearshift lever trim boot. To operate the manual release lever, block the wheels and apply the parking brake. Lift the gearshift lever boot to expose the release lever. See FLOOR SHIFT BOOT under REMOVAL & INSTALLATION. Push the release lever towards the front of the vehicle and move the gearshift lever to the Neutral position.

Intermittents

Intermittent faulty electrical connections or wiring may be the cause of intermittent conditions. Check for loose, bent or corroded terminals and terminal tension. Check for cut, bare or pinched wiring. Simulate the condition that is potentially causing the intermittent connection, either by wiggling the connections or the wiring, test driving or performing other operations while observing scan tool, DVOM or other testing equipment. See WIRING DIAGRAMS .

SHIFT LOCK SOLENOID (COLUMN SHIFT)

Note. Floor shift models are not adjustable.

Note. This procedure is accomplished with all necessary trim removed. For additional information, see appropriate procedure under REMOVAL & INSTALLATION .

Shift lock solenoid is located on steering column. (Scheme 34)- (Scheme 36). Pull locking tab outward from adjusting block. (Scheme 37) Press on adjusting block to disengage adjusting teeth. Slide adjuster block as far away from actuator as possible. Lock adjuster block in place by pushing inward on tab. Ensure proper system operation.

Scheme 34

Scheme 35

Scheme 36

Scheme 37

Note. Shift lock solenoid is also referred to as "BTSI solenoid" or "shift lock actuator".

STEERING COLUMN PARK LOCK SOLENOID (FLOOR SHIFT)