Examination
1. The operation of the reversing lights is controlled by a plunger-type switch-sensor screwed into the base of the gearbox housing from above. If the lights do not function properly, first check the condition of the corresponding fuse.
2. To check the sensor switch, disconnect the electrical wiring from it (one or two connectors). Using an ohmmeter or test lamp, check for conductivity between the sensor-switch terminals with the reverse gear selected. If the test result is negative and there are no visible defects in the wiring of the corresponding circuit, the sensor-switch itself should be replaced.
Removal
Note: A new sealing washer will be required during assembly.
1. Firmly set the parking brake, then jack up the front of the vehicle and support it on stands.
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2. Disconnect the wiring from the reverse light switch sensor - one or two connectors.
3. Prepare to collect spilled oil. Find a suitable plug to seal the hole for installing the sensor-switch.
4. Carefully wipe the surface of the crankcase around the sensor-switch. Unscrew the sensor and remove it together with the sealing washer. Seal the hole with the prepared plug.
Installation
1. Replace the sealing washer, then remove the plug and screw the sensor-switch into its regular place in the transmission housing. Tighten the sensor with the required force.
2. Restore the original wiring connection, making sure that the harness is securely fastened in all intermediate fasteners.
3. Lower the vehicle to the ground and check the transmission oil level in the gearbox. Make the appropriate adjustments if necessary. Check that the reverse lights are working properly.