Examination
1. The reverse light circuit is closed by a plunger-type switch screwed into the left wall of the transmission case, near the drive shaft. If the circuit is faulty, check for a blown fuse.
2. Disconnect the electrical wiring connector and, using a multimeter (in resistance measurement mode) or diagnostic circuit (a lamp and a battery connected by wires), make sure that current flows between the switch terminals only when reverse gear is selected. If this is not the case and there are no breaks in the circuit, the switch is faulty and must be replaced.
Removal
1. Set the handbrake, then jack up the front of the car and place it on axle stands.
2. Where available, remove the lower engine shield.
3. Disconnect the wiring connector, then unscrew the switch from the transmission along with the sealing washer.
Installation
1. Install a new sealing washer on the switch, then screw it into the transmission case and tighten it securely. Reconnect the wiring connector and check the circuit for proper operation. Install the engine shield and lower the vehicle to the ground. If oil leaks when removing the switch, check the oil level.
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