Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-B100A11

Condition
The central electronic module (CEM) checks the voltage in the supply cable to the fuel pump (FP).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Voltage too low on the signal cable.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Activation of the fuel pump.

Note! 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.





Substitute value
- None.

Possible source
- Short-circuit to ground in the signal cable to the fuel pump (FP).
- Fuel pump (FP) relay is defective.
- Damaged fuse.

Fault symptom[s]
- Engine fails to start