Cube L4-1.8L (MR18DE) (2010)
Diagnosis Procedure
1.CHECK STEERING SWITCH SIGNAL B (STEERING SWITCH TO TEL ADAPTER UNIT) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TEL adapter unit connector and spiral cable connector.
3. Check continuity between TEL adapter unit harness connector and spiral cable harness connector.
4. Check continuity between TEL adapter unit harness connector and ground.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK SPIRAL CABLE
Check spiral cable.
Is the inspection result normal?
YES - GO TO 3.
NO - Replace spiral cable.
3.CHECK TEL ADAPTER UNIT VOLTAGE
1. Connect TEL adapter unit connector and spiral cable connector.
2. Turn ignition switch ON.
3. Check voltage between TEL adapter unit harness connector.
Is the inspection result normal?
YES - GO TO 4.
NO - Replace TEL adapter unit. See: Accessories and Optional Equipment/Cellular Phone/Service and Repair/Exploded View/Display Audio System.
4.CHECK STEERING SWITCH
1. Turn ignition switch OFF.
2. Check steering switch. See: Steering Switch Signal B Circuit (Steering Switch To TEL Adapter Unit)/Component Inspection/Display Audio
System.
Is the inspection result normal?
YES - INSPECTION END
NO - Replace steering switch. See: Steering Wheel/Service and Repair/Removal and Replacement/Exploded View.
Audio System
STEERING SWITCH SIGNAL B CIRCUIT (STEERING SWITCH TO TEL ADAPTER UNIT)
Component Inspection
Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.