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.
Self-Diagnostic System: Notes
Instrument panel cluster may set Diagnostic Trouble Codes (DTCs) under certain conditions. These DTCs may be retrieved using a scan tool. Other conditions which may set a DTC is a loss of serial data communication with one or more modules on Universal Asynchronous Receiver/Transmitter (UART) data line. These DTCs may be caused by an open or short in UART serial data line.
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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.