The Communication Line Check
('04-05 models)
While in the self-diagnostic mode, the Communication Line Check starts after the odo/trip LCD Segments Check. If all segments come on, the communication line is OK.
- If the word "Error 1" is indicated, there is a malfunction in the communication line between the gauge control module and the fast controller area network (F-CAN). Check for DTCs in the ECM/PCM. If no DTCs are found, go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A .
- If the word "Error 2" is indicated, there is a malfunction in the communication line between the gauge control module and the body controller area network (B-CAN). Go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A .
- If the word "Error 3" is indicated, there is a malfunction in the communication line between the gauge control module and the body controller area network (B-CAN) and the fast controller area network (F-CAN). Check for DTCs in the ECM/PCM. If no DTCs are found, go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A .
If any communication line errors are found, go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A .
('06-08 models)
While in the self-diagnostic mode, the Communication Line Check starts after the LCD Segments Check.
If the word "F-CAN......OK", "B-CAN......OK" are indicated, communication line is OK. If there is a communication line error, the word "ERROR" will be indicated instead of "OK".
- If the word "F-CAN......ERROR" is indicated, there is a malfunction in the communication line between the gauge control module and F-CAN. Check for DTCs in the PCM and troubleshoot any DTCs found. If no DTCs are found, go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A .
- If the word "B-CAN......ERROR" is indicated, there is a malfunction in the communication line between the gauge control module and B-CAN. Go to TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
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Faulty (example B-CAN Error)