Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSATURN2000SL2 AUTOMATIC, MP6REPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSPOWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMSSYSTEM TESTSTEST B: LOCK FUNCTION INOPERATIVE (UNLOCK FUNCTION OPERATES NORMALLY)DIAGNOSTIC PROCEDURE
2000 Saturn SL2 Automatic, MP6
Diagnostic Procedure
2000 Saturn SL2 Automatic, MP6SECTION Diagnostic Procedure
- Perform Remote Keyless Entry (RKE) system check. See SYSTEM CHECK under TROUBLE SHOOTING. Roll windows down. Attempt to lock doors using door interior switches. If doors lock with both driver and passenger door switches, go to next step. If doors do not lock with both driver and passenger door switches, check lock relay located in instrument panel fuse block. If lock relay is okay, replace BCM. See appropriate BODY CONTROL MODULES article. Repeat SYSTEM CHECK under TROUBLE SHOOTING.
- Using scan tool, monitor ALL LOCK FEEDBACK while commanding lock relay on and off. If feedback does not follow command, repair open in Gray wire between lock relay and door lock motors. Repeat SYSTEM CHECK under TROUBLE SHOOTING. If feedback follows command, problem is intermittent, see DIAGNOSTIC AIDS . Repeat SYSTEM CHECK under TROUBLE SHOOTING.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.