Checking The Connector

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS CORPORATION

Fig 2: Connecting Connector

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• 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: 

  • For B5xx4T, see TEMPERATURE AND PRESSURE SENSORS, REPLACING
  • For B6xx4T, see TEMPERATURE AND PRESSURE SENSORS, REPLACING
  • see CHECKING WIRING AND TERMINALS .
  Fig 3: Identifying 4-Bit Connector

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  Fig 4: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS CORPORATION
  Fig 5: Identifying Boost Pressure Sensor

  Courtesy of VOLVO CARS CORPORATION

Is the signal OK? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to CHECKING COMPONENTS AND WIRING