Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
Harness connector M1
Harness connector E30
2.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Disconnect the following harness connectors.
A/C auto amp.
Harness connectors M1 and E30
Check the continuity between the A/C auto amp. harness connector and the harness connector.

3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Disconnect the connector of ABS actuator and electric unit (control unit).
Check the continuity between the harness connector and the ABS actuator and electric unit (control unit) harness connector.

Main line between HVAC and A-bag circuit
ECM branch line circuitTurn signal lamp circuit
Description
The BCM monitors inputs from the combination switch to determine when to
activate the turn signals. The BCM outputs voltage direction to the left and
right turn signals during turn signal operation or both during hazard warning
operation. The BCM sends a turn signal indicator requ ...
High-mounted stop lamp
Exploded View
Models Without Rear Spoiler
High-mounted stop lamp cover
High-mounted stop lamp bulb
Models With Rear Spoiler
Rear spoiler
High-mounted stop lamp assembly
Removal and Installation
WITHOUT REAR SPOILER
Removal
Slide the high-mounted stop lamp rearwar ...
C1156 ST ANG sen com cir
Description
The steering angle sensor is connected to the ABS actuator and electric unit
(control unit) in addition to CAN
lines. CAN (Controller Area Network) is a serial communication line for real
time application. It is an on-vehicle
multiplex communication line with high data communica ...