Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information IAM-B12A012

Condition
The Integrated Audio Module (IAM) checks the direct current on the signal cable to AUX 2.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Direct current (DC) is too high.
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
- Short-circuit to supply voltage in the signal cable.

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