Checking the TRACS/STC switch circuit: Verification

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on.
• Read off the status of the TRACS/STC switch
• Press in the TRACS/STC switch and hold it depressed for approximately 2 seconds. Release the switch and wait approximately 5 seconds and then hold it down for approximately a further 2 seconds.

  The status of the TRACS/STC switch should fluctuate when pressed in repeatedly. At the same time check that the TRACS/STC warning lamp lights and goes out.

  Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying TRACS Warning Lamp

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the status changed? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Information