Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Indication pattern
There is a malfunction in the communication line between the F-CAN and the gauge control module. The B-CAN is OK at this time. Check for DTCs in the ECM/PCM and troubleshoot any DTCs found.
There is a malfunction in the communication line between the B-CAN and the gauge control module. The F-CAN line is OK at this time.
There is a malfunction in the communication line between the gauge control module and the F-CAN and the B-CAN. Check for DTCs in the ECM/PCM and troubleshoot any DTCs found.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.