Code No. B1617:
Roll over sensor malfunction
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If diagnosis code No. B1617
is set in the SRS-ECU, be sure to diagnose the CAN bus line.
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The code is set if an abnormality is detected in the circuit inside the SRS-ECU.
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Malfunction of the SRS-ECU
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STEP 1. M.U.T.-III CAN bus diagnostics
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Use M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Go to Step 2.
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Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting).
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STEP 2. Check whether the diagnosis code is set again.
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Check again if the diagnosis code is set in the SRS-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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(3)On completion, check whether the diagnosis code is set again.
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Q.
Is the diagnosis code set?
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Replace the SRS-ECU.
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunction).
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