Signal missing. Permanent fault: Verification: Verification

HINT: After carrying out the repair, check that the fault has been remedied. 

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Connecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Reconnect the connectors, reinstall components etc.
• Connect VCT2000
• Start the engine. Let the engine idle until it reaches operating temperature.

  Read off the signal for the front heated oxygen sensor (HO2S).

  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the value oscillate between approximately 0 and 1 V? 

• YES 

  Refer to Resetting the adaptation 

• NO 

  Refer to Information