Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Main line between HVAC and A-bag circuitTurn signal and hazard warning lamps
System Diagram
System Description
BCM (Body Control Module) controls turn signal lamp (RH and LH) and
hazard warning lamp operation.
Combination meter operates turn signal indicator (RH and LH) according
to CAN communication signals from BCM.
Component Parts Location
BCM M1 ...
Parking, license plate and tail lamps system
Wiring Diagram
...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow Chart
Trouble Diagnosis Procedure
INTERVIEW WITH CUSTOMER
Interview with the customer is important to detect the root cause of CAN
communication system errors and to
understand vehicle condition and symptoms for proper trouble diagnosis ...