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Use the M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Repair the CAN bus line (Refer to GROUP 54C, Diagnosis ).
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Check again if the diagnosis code is set.
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(1)Erase the diagnosis code.
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(2)Ignition: "LOCK" (OFF) position to "ON"
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(3)On completion, check that the diagnosis code is not reset.
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Q.
Is the diagnosis code set?
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There is an intermittent malfunction such as poor engaged connector(s) or open
circuit (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).
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Q.
Is the check result normal?
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Repair the wiring harness.
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(1)Disconnect the negative battery terminal.
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(2)Alternate the front impact sensor (RH) and the front impact sensor (LH), and then
install the alternated sensor.
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(3)Connect the negative battery terminal.
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(4)Erase diagnosis code from memory, and check the diagnosis code.
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Q.
Is diagnosis code B1417 set?
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Replace the front impact sensor (RH) with a new one (Refer to ).
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Q.
Is diagnosis code B1407 set?
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Replace the SRS-ECU (Refer to ).
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An intermittent malfunction is suspected (Refer to GROUP 00, How to Cope with
Intermittent Malfunction ).
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