Checking Communication With The Engine Control Module (ECM)

HINT: The controller area network (CAN) communication with the control module is probably OK if the control module ID can be read off. In that case the fault is probably intermittent and will then be more difficult to trace. 

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS CORPORATION

• Try to communicate with the engine control module (ECM) by reading off the control module ID.
• Use the VCT2000 (or appropriate scan tool)

• Continue 

  Refer to SIGNAL MISSING