Faulty signal: Preparation: Verification

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

Fig 1: Identifying Ignition On Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Reinstall the connectors, components etc.
• Ignition on
• Read off the value for the manifold absolute pressure (MAP) sensor and the value for the atmospheric pressure sensor
• The difference between these values must not be greater than 70 hPa.
  Fig 3: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the difference between the pressure sensors less than 70 hPa? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Information