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Home >> Chevrolet >> 1999 >> Astro Van Passenger, RWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Remote Keyless Entry Systems >> Description >> Remote Keyless Entry System Circuit >> Liftgate Unlock/Release

Liftgate Unlock/Release

Unlock: The remote control door lock receiver supplies the voltage at cavity G to the rear door lock motor when the following conditions occur: You press the rear window release button on the transmitter. The remote control door lock receiver receives a valid vehicle access code. The normally closed contacts of the LOCK switch supply the ground for the rear door lock motor. The closed contacts of the LOCK switch are inside of the door lock relay. The ground completes the circuit and unlocks the rear door lock motor. An important fact about this feature, and due to safety reasons, only unlocks the liftgate motor and does not pop the liftgate open.

Release: Pressing the liftgate release switch and pulling the liftgate handle opens the liftgate when the rear door lock motor is in the UNLOCK position. An important note is that once the liftgate motor has been unlocked, only the liftgate release switch will function.