Inspection Procedure 1: Communication between the M.U.T.-III and the
SRS-ECU is not possible.
COMMENTS ON TROUBLE SYMPTOM
If the M.U.T.-III cannot 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 54D, Diagnosis-).