Diagnosis Procedure

LDW ON INDICATOR CIRCUIT


Diagnosis Procedure

1.CHECK LDW ON INDICATOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect LDW switch connector.
3. Turn ignition switch ON.
4. Check voltage between LDW switch harness connector and ground.





Is the measurement value normal?
YES - GO TO 2.
NO - Check harness between fuse and LDW switch.
2.CHECK LDW ON INDICATOR SIGNAL FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the lane camera unit harness connector.
3. Check continuity between the lane camera unit harness connector and LDW switch harness connector.





Does continuity exist?
YES - GO TO 3.
NO - Repair the harnesses or connectors.
3.CHECK LDW ON INDICATOR SIGNAL CIRCUIT FOR SHORT
Check continuity between the lane camera unit harness connector and ground.





Does continuity exist?
YES - Repair the harnesses or connectors.
NO - GO TO 4.
4.CHECK LDW ON INDICATOR
1. Connect LDW switch connector.
2. Turn ignition switch ON.
3. Apply ground to LDW switch terminal 2.
4. Check condition of the LDW ON indicator.
Does LDW ON indicator illuminate?
YES - Replace the lane camera unit.
NO - Replace LDW switch.