Checking the serviceability
1. The reverse light circuit is closed by a plunger-type switch that is screwed into the rear of the transmission, above and to the left of the driveshaft. If the circuit is faulty, first check to see if the fuse is blown.
2. To test the switch, disconnect the wiring connector. Using a multimeter in resistance mode or a diagnostic circuit (consists of a lamp and a battery connected by wires), make sure that current flows between the switch terminals only when reverse is selected. If this is not the case and there are no breaks or other damage in the circuit, the switch is faulty and must be replaced.
Removal
3. Apply the handbrake, then jack up the front of the car and support it on axle stands.
4. Disconnect the wiring connector, then unscrew the switch and remove it from the transmission case along with the sealing washer.
Installation
5. Install a new sealing washer onto the switch, then screw it into position and tighten it to the specified tightening torque Specifications. Connect the wiring connector and check the circuit operation, then lower the vehicle to the ground.
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