CRX L4-1488cc 1.5L SOHC (D15A3) MFI (1987)
Backup Lamp Switch: Testing and Inspection
1. Test the back up light switch by placing the gear shift lever in reverse and turning the ignition switch to ON
2. If back-up lights do not go on, remove the back-up light switch.
3. Using an ohmmeter, check the switch for continuity while pushing in on the switch plunger.