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Home >> Volvo >> 2007 >> C70 Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) - Diagnostic Trouble Codes - 2 Of 2 >> TCM-0A30: Control Module Communication. Signal Missing From Engine Control Module (ECM) (Aw55-50/51SN; 2006-2013) >> Fault-Tracing Information >> Information
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Fault-Tracing Information: Information

No fault-tracing has been developed for this diagnostic trouble code (DTC).

A diagnostic trouble code for CAN communication can be stored in the central electronic module (CEM). IN some cases, a diagnostic trouble code is stored in other affected control modules. This diagnostic trouble code is not to be erased until any CAN communication trouble codes in the central electronic module (CEM) or engine control module (ECM) are remedied and erased.

Therefore, first read the diagnostic trouble codes in the central electronic module (CEM) and the engine control module (ECM), perform troubleshooting and remedy as necessary. If no diagnostic trouble codes (DTCs) are stored, fault-trace the controller area network (CAN) as follows. This diagnostic trouble code (DTC) can then be erased.

For further information on this diagnostic trouble code, see Diagnostic trouble code (DTC) information.

Other information 

Fig 1: Identifying Engine Control Module (ECM)
GLL117628Courtesy of VOLVO CARS CORPORATION