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 CEM-B108A24
Condition
At the start button there are two switches to indicate the button's position. Switch 1 is directly connected to Central electronic module (CEM) and to Engine control module (ECM). Switch 2 gives a control signal to central electronic module (CEM) via serial communication (LIN). Both switches shall close when the start button is pressed in.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Both switches have been closed for more than two minutes.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Pressing of start button.
The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
NO RELATED
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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.