Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information IAM-B12A013

Condition
The Integrated Audio Module (IAM) checks the direct current on the signal cable from the AUX panel.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Signal missing.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Request for self-test.

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
- Open circuit on signal cable.

Fault symptom[s]
- Accessory connected to the electronic module, malfunction