Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-A03B

Condition
The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network). The diagnostic trouble code (DTC) is stored in the engine control module (ECM) if it registers a communication fault with the central electronic module (CEM).

Substitute value
- None.

Possible source
- Open-circuit in the control area network (CAN) wiring
- Short-circuit between the control area network (CAN) wiring
- Internal fault in another control module in the same part of the control area network (CAN).

Fault symptom[s]
- None.