Faulty Signal: Verification

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

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Connecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Verification should begin with a cold engine (+20 °C) so that the engine coolant temperature (ECT) sensor can be tested over as wide a temperature range as possible
• Ignition off
• Reconnect the connectors, reinstall components etc.
• Start the engine.

  Read off the engine coolant temperature (ECT) sensor signal.

  Check that the engine coolant temperature (ECT) is within its permitted range and corresponds with the engine warming up.

  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the temperature within its permitted range? 

• YES 

  VERIFIED:  Troubleshooting has been completed.

• NO 

  Refer to Information