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 Verification
Refer to Diagnostic Aids before performing Circuit/System Verification.
- Ignition ON.
- Verify that no DTCs are set.
- If any DTC is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If the DTC is not set
- If any DTC is set
- Verify the scan tool Frontview Camera Disable History 1 - 4 parameters does not have a current Malfunction. Refer to K109 Frontview Camera Module: Scan Tool Information
- If the parameter is Malfunction
Diagnose the system that set the malfunction.
- Go to next step: If the parameter is Normal
- If the parameter is Malfunction
- Verify the forward collision alert indicators illuminate momentarily when turning ignition OFF and then ON.
- If the indicators do not illuminate
Refer to DTC B0987 .
- Go to next step: If the indicators illuminate
- If the indicators do not illuminate
- Verify the driver information center forward collision alert distance indicator toggles between far, medium, near and off.
- If the setting does not change
Refer to DTC B356A .
- Go to next step: If the setting changes
- If the setting does not change
- Verify the area of the K109 Frontview Camera Module is not contaminated.
- If contaminated
Clean the windshield
- Go to next step: If not contaminated
- If contaminated
- All OK.
Use the Manual With the Right Hardware
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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.
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