Diagnostic Trouble Code (DTC) Information CEM-B102451
Condition
Central electronic module (CEM) checks communication with antenna unit ignition (IAU). To enable vehicle start, the antenna unit ignition (IAU) and central electronic module (CEM) must be connected to each other via codes.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- A message from antenna unit ignition (IAU) indicates that the control module has not been programmed.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Communication with antenna unit ignition (IAU).
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.
Possible Source
- Antenna unit ignition (IAU) is not programmed.
Fault symptom[s]
- Starting/Engine does not start/Engine does not turn/No clicking sound at start attempt
- Starting/Engine does not start/Engine does not turn/Clicking sound at start attempt
- Starting/Engine does not start/Engine does not turn/Unsure when/at all times
- Starting/Engine does not start/Unsure when/at all times
- Text window and warning symbol/Text message