CONTENTS OF TROUBLESHOOTING
| caution | During diagnosis, a diagnosis code associated with other system may be set when the ignition switch is turned on with connector(s) disconnected. On completion, confirm all systems for diagnosis code(s). If diagnosis code(s) are set, erase them all. |
| warning | Since the radiator fan rotates during CAN bus line diagnostics, make sure that no one is servicing the engine compartment before diagnosing the CAN bus line. Since the CAN communication stops when diagnosing the CAN bus line, the ETACS-ECU detects the time-out of the engine-ECU, and activates the radiator fan to prevent overheating as fail-safe. |
1. STANDARD FLOW OF DIAGNOSIS TROUBLESHOOTING
Diagnosis method
- *1: For how to diagnose CAN bus lines, refer to GROUP 54C
. - *2: For the CAN bus diagnosis chart, refer to GROUP 54C .
- *3: When the M.U.T.-III detects a diagnosis code, its display informs users whether a mechanical problem currently exists or whether it existed before. The message for the former state identifies it as an "Active" and the message for the latter identifies it as a "Stored".
- *4: For how to treat past trouble, refer to .
- *5: For how to cope with intermittent malfunctions, refer to .
- *6: For coding data, refer to .
2. SYSTEM OPERATION AND SYMPTOM VERIFICATION TESTS
3. DIAGNOSIS FUNCTION
4. DIAGNOSIS CODE CHART
5. DIAGNOSIS CODE PROCEDURES
6. TROUBLE SYMPTOM CHART
7. SYMPTOM PROCEDURES