Turn Signal Flasher Circuit
WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect the connector from the combination switch and inspect the connector on the wire harness side. See CONNECTOR IDENTIFICATION . See INSPECTING TURN SIGNAL FLASHER CIRCUIT table. If the circuit is as specified, replace the relay. If the circuit is not as specified, inspect the circuits connected to other parts.
INSPECTING TURN SIGNAL FLASHER CIRCUIT
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 2 - Ground | Constant | Continuity |
| 3 - Ground | Constant | Continuity |
| 5 - Ground | Turn Signal Switch RIGHT Or OFF | No Continuity |
| 5 - Ground | Turn Signal Switch LEFT | Continuity |
| 6 - Ground | Turn Signal Switch LEFT Or OFF | No Continuity |
| 6 - Ground | Turn Signal Switch RIGHT | Continuity |
| 7 - Ground | Constant | Continuity |
| 8 - Ground | Hazard Warning Switch OFF | No Continuity |
| 8 - Ground | Hazard Warning Switch ON | Continuity |
| 1 - Ground | Ignition Switch LOCK Or ACC | No Voltage |
| 1 - Ground | Ignition Switch ON | Battery Voltage |
| 4 - Ground | Constant | Battery Voltage |