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.
Instrument Cluster
The instrument cluster uses both the CAN and the standard corporate protocol (SCP) communications networks. The instrument cluster displays a variety of vehicle system status information.
The instrument cluster shares the CAN termination responsibilities with the anti-lock brake system (ABS) module through the use of a split termination resistor.
The instrument cluster shares the SCP communications network termination responsibilities with the lighting control module (LCM) and the driver door module (DDM).
Check the CAN and SCP communications network circuits between the instrument cluster C220 and the DLC C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms, there is an open circuit in the CAN or SCP communications network, damage to the DLC C251, damage to the instrument cluster C220, or a problem in the in-line connector.
For additional instrument cluster information, refer to INSTRUMENT CLUSTER .
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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.