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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 6.
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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 - Unintended Acceleration mitigation System/BSW/Corner Sensor System, Clearance
Warning Control Unit, Troubleshooting ).
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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) → "ON"
- Confirm whether the diagnosis codes are set.
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Q.
Is the diagnosis code set?
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After replacing the clearance warning control unit, go to Step 6.
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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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- 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) → "ON"
- Confirm whether the diagnosis codes are set.
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Q.
Is the diagnosis code set?
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Replace the engine-ECU, and then go to Step 6.
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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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|
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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) → "ON"
- Confirm whether the diagnosis codes are set.
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Q.
Is the diagnosis code set?
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