

OPERATION
DIAGNOSIS CODE SET CONDITIONS

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 B1400 set?


STEP 3. Check SRS-ECU connector B-109, clock spring connector B-243 and driver’s air bag module connector B-245 (M.U.T.-III diagnosis code).



Q.
Is diagnosis code B1400 set?

STEP 4. Check the driver’s air bag module (M.U.T.-III diagnosis code).


Q.
Is diagnosis code B1400 set?


STEP 5. Check the clock spring (M.U.T.-III diagnosis code).



Q.
Is diagnosis code B1400 set?


STEP 6. Resistance measurement at the SRS-ECU connector B-109.





Q.
Is the check result normal?

STEP 7. Check whether the diagnosis code is reset.
Q.
Is diagnosis code B1400 set?

