

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 B1401 set?


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



Q.
Is diagnosis code B1401 set?


STEP 5. Resistance measurement between the SRS-ECU connector B-109 (terminal No.24 and 25) and the clock spring connector B-243 (terminal No.13 and 14).





Q.
Are the check results normal?

STEP 6. Check whether the diagnosis code is reset.
Q.
Is diagnosis code B1401 set?

