Diagnostic trouble code (DTC) status ECM-3100 Engine speed (RPM) sensor. Signal missing

Read off the diagnostic trouble code (DTC) status. Check the status of the relevant diagnostic trouble code (DTC).

Fig 1: Identifying VCT2000

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was the status of the relevant diagnostic trouble code (DTC) permanent? 

• YES 

  Refer to Checking the wiring and component 

• NO 

  Refer to Faulty signal. Intermittent fault