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 MANUALSSATURN2000LW2 AUTOMATICREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSPOWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMSTROUBLE SHOOTINGREMOTE KEYLESS ENTRY SYSTEM CHECK
2000 Saturn LW2 Automatic
Remote Keyless Entry System Check
2000 Saturn LW2 AutomaticSECTION Remote Keyless Entry System Check
NOTE:
If problem is in anti-theft system, perform SECURITY SYSTEM CHECK in appropriate ANTI-THEFT SYSTEMS article before performing REMOTE KEYLESS ENTRY SYSTEM CHECK.
- Turn ignition off. Open all windows and close all doors. Ensure all transmitters are present. Stand 15 feet from passenger side of vehicle. Aim transmitters at vehicle and operate all 4 buttons. Repeat procedure for each transmitter. If all functions operate properly on every button on each transmitter, system is okay. If all functions do not operate on every button on each transmitter, go to next step.
- If any functions operate on more than one transmitter, go to next step. If any functions are inoperative on only one transmitter, check battery contacts on transmitter. Replace battery. If all functions are okay, system is okay. If all functions are not operating on one transmitter, replace transmitter.
- If one or two of the same functions are inoperative on all transmitters, go to next step. If 4 functions do not operate on all transmitters, synchronize transmitter(s). See TRANSMITTER SYNCHRONIZATION under PROGRAMMING PROCEDURE. If 4 functions still do not operate on all transmitters, program transmitter(s). See TRANSMITTER PROGRAMMING under PROGRAMMING PROCEDURE. If transmitters still do not operate, check battery contacts on transmitters. Replace batteries and/or transmitters as necessary.
- If one or two of the same functions are inoperative on all transmitters, turn ignition on. Connect scan tool and retrieve BCM DTCs. If BCM DTCs exist, perform appropriate diagnostic test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no BCM DTCS are present, see SYMPTOM TESTS .
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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.