Work Flow
PRECAUTIONS FOR DIAGNOSIS
If steering angle sensor, steering system parts, suspension system parts, ABS actuator and electric unit (control unit) or if wheel alignment has been adjusted, be sure to adjust neutral position of steering angle sensor before driving. Refer to BRC-6, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Description".
OVERALL SEQUENCE

1.COLLECT INFORMATION FROM THE CUSTOMER
Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the diagnosis worksheet.
2.PERFORM SELF DIAGNOSTIC RESULT
Perform self diagnostic result
3.CHECK SYMPTOM OPERATING CONDITION
Check that the symptom is a normal operating condition
4.CHECK WARNING AND INDICATOR LAMPS OPERATION
Check warning and indicator lamps operation.
5.PERFORM DIAGNOSIS APPLICABLE TO THE SYMPTOM
Perform diagnosis applicable to the symptom.
6.FINAL CHECK
Perform self diagnostic result again, and check that the malfunction is repaired. After checking, erase the self diagnosis memory
Diagnostic Work Sheet

Basic inspection
Inspection and adjustmentSteering switch
Removal and Installation
REMOVAL
Remove the driver airbag module. Refer to SR-12, "Removal and
Installation".
Remove the steering wheel audio control switch screws (A).
Release the steering wheel audio control switch harness clips
(B).
Remove the steering wheel audio contr ...
Interior room lamp
Wiring Diagram
...
Main line between HVAC and A-bag circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
A/C auto amp.
Harness connectors M1 and E30
Check the continuity between the A/C au ...