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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 transfer-ECU.
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Q.
Is the diagnosis code set?
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Perform the troubleshooting of transfer-ECU (Refer to GROUP 23C - Troubleshooting - Diagnosis
Function ).
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Check that the other ECU performing CAN communication with transfer-ECU sets diagnosis
code No. U0114 (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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After replacing the transfer-ECU, go to Step 6.
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Intermittent malfunction in CAN bus line between engine-ECU and transfer-ECU (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) to 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 transfer-ECU (Refer
to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to
Cope with Intermittent Malfunctions).
|
|
|
|
- Reconfirm whether the diagnosis codes are set in the engine-ECU.
|
|
- 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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