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- Using M.U.T.-III, perform CAN bus line diagnosis.
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Q.
Is the check result normal?
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Correct CAN bus line (Refer to GROUP 54C - Troubleshooting - CAN
Bus Diagnostics Table ), and then go to Step 4.
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- Confirm whether the diagnosis codes are set in the clearance
warning control unit.
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Q.
Is the diagnosis code set?
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Perform the troubleshooting of clearance warning control unit (Refer to GROUP
54A - Ultrasonic Misacceleration Mitigation System/Corner Sensor System - Diagnosis
Code Chart ).
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Check that the other ECU performing CAN communication with clearance warning control unit
sets diagnosis code No. U1005 [Refer to GROUP 54C - CAN communication-related Diagnosis
Code Table ].
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Q.
Is the diagnosis code set?
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- Reconfirm whether the diagnosis codes are set in the engine-ECU.
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- Erase the diagnosis codes being set.
- Ignition switch: "LOCK" (OFF) to ON
- Confirm whether the diagnosis codes are set.
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Q.
Is the diagnosis code set?
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Intermittent malfunction in CAN bus line between engine-ECU and clearance warning
control unit (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunctions).
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- After replacing the clearance warning control unit, re-check the diagnosis
code set.
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Q.
Is the diagnosis code set?
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