Checking The Component And Wiring

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

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 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 (2004, 2005)
• see SIGNAL SPECIFICATION (2006, 2007)
• see COMPONENT SPECIFICATIONS
• see TEMPERATURE AND MANIFOLD ABSOLUTE PRESSURE SENSOR (MAPT)
• see CHECKING WIRING AND TERMINALS .

Fig 1: Identifying 4-Bit Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Boost Pressure Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  Refer to VERIFICATION