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.
Turn Signals Function
The SCCM control unit records 4 positions of the turn signal stalk in digital form. The turn signal stalk no longer engages mechanically and instead returns to its initial position, even when the turn signals are switched on. They are switched off either by the steering angle sensor or by moving the stalk in the opposite direction. This information is transmitted by the SCCM control unit via the LS CAN to the REC which then specifies the flash frequency and the duty factor.
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.