

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 junction block fuse number 40 (diagnosis code B1476) or 37 (diagnosis code B1477).
Q.
Is the fuse burned out?



STEP 4. Voltage measurement at the SRS-ECU connector B-109.


Q.
Is the check result normal?

STEP 5. Check a burned-out fuse.
Q.
Is the fuse in good condition?


STEP 6. Resistance measurement at the junction block connector B-231.




Q.
Is the check result normal?
STEP 7. Check whether the diagnosis code is reset.
Q.
Is diagnosis code B1476 or diagnosis code B1477 set?



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 junction block fuse number 40 (diagnosis code B1476) or 37 (diagnosis code B1477).
Q.
Is the fuse burned out?



STEP 4. Voltage measurement at the SRS-ECU connector B-109.


Q.
Is the check result normal?

STEP 5. Check a burned-out fuse.
Q.
Is the fuse in good condition?


STEP 6. Resistance measurement at the junction block connector B-231.




Q.
Is the check result normal?
STEP 7. Check whether the diagnosis code is reset.
Q.
Is diagnosis code B1476 or diagnosis code B1477 set?

