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.
DTC 65535/1111 - Control Module Malfunction
/1111 - Control Module Malfunction DTC 65535/1111 - Control Module Malfunction NOTE: The first set of numbers is displayed as the 5 digit Rapid Data code. Second set of numbers are displayed as 4 Digit Blinking Code. Blinking codes are also displayed by vehicle's Malfunction Indicator Light (MIL). If the scan tool indicates the above code, a range/performance problem in that circuit may exist. To perform test, see Figure.
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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.