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- Use M.U.T.-III to perform CAN bus line diagnosis.
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Q.
Is the check result normal?
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Repair CAN bus line (Refer to GROUP 54C - Troubleshooting - CAN Bus
Diagnostics Table ). After repairing CAN bus line, go to Step 5
.
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Check whether another ECU, which communicates with the laser radar (FCM-ECU), has set
diagnosis code No. U15A0 [Refer to GROUP 54C - CAN Communication-related Diagnosis
Code (U-code) Table ].
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|
Q.
Is diagnosis code set?
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Confirm again whether the diagnosis code is set in the engine-ECU.
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- Erase the set diagnosis code.
- Ignition switch: LOCK (OFF) → ON
- Confirm whether the diagnosis code is set.
|
|
Q.
Is diagnosis code set?
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Replace the laser radar (FCM-ECU), and then go to Step 5.
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|
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Intermittent malfunction in CAN bus line between engine-ECU and the laser radar
(FCM-ECU) (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunctions ).
|
|
|
|
Confirm again whether the diagnosis code is set in the engine-ECU.
|
|
- Erase the set diagnosis code.
- Ignition switch: LOCK (OFF) → ON
- Confirm whether the diagnosis code is set.
|
|
Q.
Is diagnosis code set?
|
|
After replacing the engine-ECU, go to Step 5.
|
|
|
|
Intermittent malfunction in CAN bus line between engine-ECU and the laser radar
(FCM-ECU) (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunctions ).
|
|
|
|
Confirm again whether the diagnosis code is set in the engine-ECU.
|
|
- Erase the set diagnosis code.
- Ignition switch: LOCK (OFF) → ON
- Confirm whether the diagnosis code is set.
|
|
Q.
Is diagnosis code set?
|