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.
Diagnostic Trouble Code (DTC) Information ECM-911B
Condition
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) receives a fault message from the central electronic module (CEM), via the controller area network (CAN), indicating a faulty signal from the clutch pedal position sensor or a fault in the CAN communication.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.
Substitute Value
Cruise control switched off.
Possible Source
- Fault-trace the central electronic module (CEM).
Fault symptom[s]
- Cruise control does not function at all.
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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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