

OPERATION
DIAGNOSIS CODE SET CONDITIONS
PROBABLE CAUSES
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics.
Q.
Is the CAN bus line found to be normal?


STEP 2. Check whether the diagnosis code is reset.
Q.
Is the diagnosis code set?


STEP 3. Check the driver’s air bag module (M.U.T.-III diagnosis code).


Q.
Is diagnosis code B1402 set?


STEP 4. Check the clock spring (M.U.T.-III diagnosis code).



Q.
Is diagnosis code B1402 set?


STEP 5. Resistance measurement at the SRS-ECU connector B-109.





Q.
Are the check results normal?

STEP 6. Check whether the diagnosis code is reset.
Q.
Is diagnosis code B1402 set?

