Inspection Procedure 3: When the Ignition Switch is Turned to "ON"
Position (Engine Stopped), the SRS Warning Lamp does not Illuminate.
Inspection Procedure 4: After the Ignition Switch is Turned to the "ON"
Position, the SRS Warning Lamp does not Go Off within Approximately Seven
Seconds.
TECHNICAL DESCRIPTION (COMMENT)
The SRS-ECU sends the SRS warning lamp signal to the combination meter
via the CAN communication.
This may be caused by faults in the CAN bus line, the combination meter
or the SRS-ECU.
PROBABLE CAUSES
Damaged wiring harness or connector
Combination meter defect
Malfunction of the SRS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus
lines.
Q.
Is the check result normal?
Replace the SRS-ECU (Refer to).
Repair
the CAN bus lines (Refer to GROUP 54D, Diagnosis ).