Checking The Wiring And Component

HINT: The intake air temperature (IAT) sensor is integrated in the boost pressure sensor. 

• Check the boost pressure sensor connector. Check for contact resistance and oxidation.

  Check the intake air temperature (IAT) sensor between terminals #1 and #2 (sensor side). Check the resistance.

  Check the signal cable between control module terminal #A87 (#B27) and boost pressure sensor terminal #2. Check for a short-circuit to supply voltage. Check for an open-circuit.

  Remedy as necessary.

  Other information 

  • see CONNECTING THE BREAKOUT BOX
  • see SIGNAL SPECIFICATION (B5254T3; 2005), or SIGNAL SPECIFICATION (B5254T3; 2006-2007)
  • see COMPONENT SPECIFICATIONS
  • see TEMPERATURE AND MANIFOLD ABSOLUTE PRESSURE SENSOR (MAPT) (B5254T3; 2005-2007), or TEMPERATURE AND MANIFOLD ABSOLUTE PRESSURE SENSOR (MAPT) (B5254T7; 2008-2012)
  • see CHECKING WIRING AND TERMINALS .
  Fig 1: Identifying 4-Bit Connector

  Courtesy of VOLVO CARS CORPORATION
  Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS CORPORATION
  Fig 3: Identifying Boost Pressure Sensor

  Courtesy of VOLVO CARS CORPORATION

• Continue 

  Refer to VERIFICATION