GS300, GS400, LS400, Lx470 & RX300
- Turn ignition off. Disconnect 8-pin turn signal flasher connector. Turn ignition on. Using a voltmeter, measure voltage between specified terminals of connector (harness side) and ground with ignition switch in specified position. See TURN SIGNAL FLASHER CIRCUIT VOLTAGE table. See Fig 1. If voltages are as specified, go to next step. If voltages are not as specified, repair wiring harness or replace components as necessary. Retest system operation.TURN SIGNAL FLASHER CIRCUIT VOLTAGE
Check Voltage Between Ground & Terminal No. Switch Position Voltage 1 LOCK Or ACC Zero 1 ON Battery 4 Any Position Battery - Turn ignition off. Using an ohmmeter, check continuity between specified terminals of connector (harness side) and ground with specified switches in specified positions. See TURN SIGNAL FLASHER CIRCUIT CONTINUITY table. See Fig 1. If continuity is as specified, replace turn signal flasher. Retest system operation. If continuity is not as specified, repair wiring harness or replace components as necessary. Retest system operation.TURN SIGNAL FLASHER CIRCUIT CONTINUITY
Check Continuity Between Ground & Terminal No. Switch Position Continuity 2 Any Position Yes 3 Any Position Yes 5 Turn Signal Switch In Right Or Off No 5 Turn Signal Switch In Left Yes 6 Turn Signal Switch In Left Or Off No 6 Turn Signal Switch In Right Yes 7 Any Position Yes 8 Hazard Warning Switch Off No 8 Hazard Warning Switch On Yes