Inspection Procedure
1: Communication between M.U.T.-III and the SRS-ECU is not
possible.
COMMENTS ON TROUBLE SYMPTOM
If the M.U.T.-III can not communicate
with the SRS system, the CAN bus lines may be defective.
If the SRS system does not work, the SRS-ECU or its power supply circuit may
be defective.
PROBABLE CAUSES
Damaged wiring harness or connector
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?
Check
and repair the power supply circuit system (Refer to ).
Repair
the CAN bus lines (Refer to GROUP 54F, Diagnosis-).