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 MANUALSCHEVROLET1999ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYDESCRIPTION AND OPERATIONREMOTE KEYLESS ENTRY SYSTEM CIRCUIT DESCRIPTIONLOCK
1999 Chevrolet Astro Van 2WD V6-4.3L VIN W
Lock
1999 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Lock
The remote control door lock receiver receives a signal with a valid Vehicle Access Code (VAC) when you press the LOCK button on the transmitter. Upon receiving the signal, the remote control door lock receiver locks all of the doors.
Battery voltage is available at cavity R of the remote control door lock receiver. The voltage energizes the door lock relay. The door lock relay activates the door lock motors. The ground path for the left front door lock is through the remote control door lock receiver cavity A. The right front door lock motor and the side door lock motor ground through the remote control door lock receiver cavity H. The rear door lock motor grounds through the remote control door lock receiver cavity G. The remote control door lock receiver grounds through G200.
Battery voltage is available at cavity R of the remote control door lock receiver. The voltage energizes the door lock relay. The door lock relay activates the door lock motors. The ground path for the left front door lock is through the remote control door lock receiver cavity A. The right front door lock motor and the side door lock motor ground through the remote control door lock receiver cavity H. The rear door lock motor grounds through the remote control door lock receiver cavity G. The remote control door lock receiver grounds through G200.
RENDER: 1.0x
NO RELATED
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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.