Code No.B1416
Malfunction of Inside Front Impact Sensor (LH)
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If the diagnosis code B1416
is set to SRS-ECU, be sure to diagnose the CAN bus line.
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| note |
This front impact sensor (LH) indicates that the front impact sensor integrated in the
centre of the vehicle is defective.
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- When the front impact sensor does not operate
- When the front impact sensor’s property is abnormal
- When the front impact sensor sends an abnormal signal
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- Malfunction of CAN bus line
- Malfunction of front impact sensor
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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. Front impact sensor check.
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(1)Check that the negative battery terminal is disconnected. If the negative battery
terminal is connected, disconnect it.
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(2)A front impact sensor is checked in the following way.
- Replace the front impact sensor with new part.
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(3)Connect the negative battery terminal.
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(4)After erasing the diagnosis code memory, check the diagnosis code again.
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(5)Disconnect the negative battery terminal.
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Q.
Is the diagnosis code set?
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Go to Step 3
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The procedure is complete.
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(1)Check that the negative battery terminal is disconnected. If the negative battery
terminal is connected, disconnect it.
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(2)Replace the SRS-ECU with a new one (Refer to ).
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(3)Connect the negative battery terminal.
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(4)After erasing the diagnosis code memory, check the diagnosis code again.
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(5)Disconnect the negative battery terminal.
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Q.
Is the diagnosis code set?
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Return to Step 1.
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The procedure is complete.
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