LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2000 >> SC 400 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Steering Column Switches >> Circuit Tests >> Turn Signal Flasher Circuit >> GS300, GS400, LS400, Lx470 & RX300

GS300, GS400, LS400, Lx470 & RX300

  1. 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
  2. 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
Fig 1: Identifying Turn Signal Flasher Connector Terminals (GS300, GS400, LS400, LX470 & RX300)
G99I50136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002