Contents Wiring diagrams Section: Automatic Trans All sections

Shift Interlock System: Overview Chevrolet Camaro IV facelift

Automatic Trans ~393 words

MODEL IDENTIFICATION

Body Code (1)Model
"C"Park Avenue
"E"Eldorado
"F"Camaro & Firebird
"H"Bonneville & LeSabre
"J"Cavalier, Saturn "L" Series & Sunfire
"K"DeVille & Seville
"M"Metro & Firefly (Canadian)
"N"Alero, Grand Am & Malibu
"S"Prizm
"V"Catera
"W"Century, Grand Prix, Impala, Intrigue, Lumina, Monte Carlo & Regal
"Y"Corvette
(1) Vehicle body code is 4th character of VIN.
(1)Vehicle body code is 4th character of VIN.

MODEL IDENTIFICATION

DESCRIPTION & OPERATION

Transaxle/Transmission shift interlock system prevents driver from moving gearshift lever from "P" position unless ignition switch is turned to ON position. On models equipped with Brake Transmission Shift Interlock (BTSI) solenoid, gearshift lever cannot be moved from "P" position without simultaneously applying brake pedal with ignition switch turned to ON position. Shift interlock solenoid is located at gearshift lever in steering column or center console.

SYSTEM OPERATION CHECK

Once familiar with system being diagnosed, check for correct operation of BTSI & PARK LOCK SYSTEM. If adjustments are necessary, see ADJUSTMENTS .

  1. Place gearshift lever in Park. Turn lock cylinder to OFF-LOCK position. Remove key. If lock cylinder cannot be turned to OFF-LOCK position or key cannot be removed, perform appropriate adjustment procedure.
  2. With lock cylinder in OFF-LOCK position, try to move gearshift lever out of Park. If gearshift lever can be moved out of Park, perform appropriate adjustment procedure.
  3. Turn lock cylinder to RUN position. Try to move gearshift lever out of Park. If gearshift lever can be moved out of Park, perform appropriate adjustment procedure. Depress brake pedal and move gearshift lever out of Park. If gearshift lever cannot be moved out of Park, perform appropriate adjustment procedure.
  4. Try to turn lock cylinder to OFF-LOCK position. Ignition switch should stop turning before reaching the OFF-LOCK position, and key should not be able to be removed. If system does not operate as specified, perform appropriate adjustment procedure.
  5. With key in same position as in previous step (just before OFF-LOCK position), place gearshift lever in Park. Turn lock cylinder toward RUN position, and then to OFF-LOCK position. Remove key.

If shift interlock system operates as specified, system is functioning properly at this time. If system does not operate as specified, inspect mechanical functions of the following components

  1. Ignition Switch
  2. Gearshift Lever Assembly
  3. External Shift Cable/Linkage
  4. Internal Transaxle/Transmission Shift Linkage

If switch or cable adjustment problems are found, adjust as necessary. See ADJUSTMENTS . If mechanical functions are okay, perform appropriate test in the following SYMPTOM TESTS

  1. «SHIFT LOCK CONTROL INOPERATIVE»(ref-11698-S38605320192000112700000)
  2. «SHIFT LOCK CONTROL ALWAYS ON (IGNITION IN ON POSITION)»(ref-11698-S25492098922000112700000)
  3. «SHIFT LOCK CONTROL INOPERATIVE (BTSI INDICATOR INOPERATIVE) - "V" BODY (CATERA)»(ref-11698-S10750104282000112700000)
  4. «KEY CANNOT BE REMOVED (IGNITION IN OFF POSITION) - "V" BODY (CATERA)»(ref-11698-S38130068052000112700000)
  5. «STEERING COLUMN LOCK MALFUNCTION - "W" BODY (GRAND PRIX & REGAL)»(ref-11698-S08833836932000112700000)