Checking the connector

Fig 1: Identifying Ignition Switch ON Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connector(s) Reinstallation

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Check the boost pressure sensor connector. Check for contact resistance and oxidation
• Reinstall the components, reconnect the connectors etc.
• Ignition on
• Read off the boost pressure sensor signal.

  Check that the signal is within its permitted range. With the engine switched off, the voltage should be approximately 1.9 V.

  If the signal is now OK, the fault was caused by poor contact in the connector.

  Other information: 

  • To access or replace the boost pressure sensor, see Temperature and pressure sensor, replacing
  • See Contents .
  Fig 3: Identifying 4-Bit connector

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying VCT2000 Diagnostic Tool

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 5: Identifying Boost Pressure Sensor

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the signal OK? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking components and wiring