Code No. B1617: Roll over sensor malfunction



caution If diagnosis code No. B1617 is set in the SRS-ECU, be sure to diagnose the CAN bus line.

TROUBLE JUDGMENT


The code is set if an abnormality is detected in the circuit inside the SRS-ECU.

TROUBLESHOOTING HINTS


Malfunction of the SRS-ECU

DIAGNOSIS


STEP 1. M.U.T.-III CAN bus diagnostics


Use M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?

Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting).

STEP 2. Check whether the diagnosis code is set again.


Check again if the diagnosis code is set in the SRS-ECU.
(1)Erase the diagnosis code.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3)On completion, check whether the diagnosis code is set again.

Q. Is the diagnosis code set?

Replace the SRS-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction).