Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-B1C5513

Condition
Central electronic module (CEM) checks the horn.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal to the relay for the horn is too high.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Unactivated horn.

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
- The function switches off permanently after 100 operating cycles where the fault was detected. Erasing diagnostic trouble codes (DTCs) resets the result.

Possible source
- Contact resistance, oxidation or poor contact in connections.
- Open circuit on the relay drive circuit.

Fault symptom[s]
- Horn fails to operate