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.
Circuit/System Description
The K9 Body Control Module monitors the switch on signal circuit 1788 and the switch receives a constant ground on ground circuit 1851. When the traction control switch is pressed once, the K9 Body Control Module requests the brake system K160 Brake System Control Module via serial data to disable the traction control. The K160 Brake System Control Module commands the instrument cluster via serial data to turn the traction control off indicator ON and display the Traction Control Off message on the driver information center to notify the driver of the deactivation.
When the traction control switch is pressed and held for five seconds, the K9 Body Control Module requests the K160 Brake System Control Module to disable the traction control and stability control. The K160 Brake System Control Module commands the instrument cluster via serial data to turn the traction control off indicator ON and the traction/stability indicator ON to notify the driver of the deactivation.
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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.