Examination
1. Check fuse (15 A), located in the fuse box. Replace if necessary.
2. Engage reverse gear and turn on the ignition, the reverse lights should come on. Switch off the ignition.
3. If the lights do not come on, check the reversing lamps.
4. If the lamps are in good condition, disconnect the wire from the switch and connect an ohmmeter to the switch contacts.
5. If reverse gear is engaged, the switch circuit must be closed.
6. If necessary, replace the switch or check its circuit for open circuits.
Replacement
Unscrew the switch and install a new one.