Checking components and wiring

Check the signal cable between control module terminal #A23 (#A23) and boost pressure sensor terminal #4. Check for a short-circuit to supply voltage. Check for an open-circuit.

HINT: With the ignition on and the boost pressure sensor connector disconnected, the voltage between terminal #4 and ground terminal should be approximately 5 V. 

Check the ground lead between control module terminal #A60 (#A60) and boost pressure sensor terminal #1. Check for an open-circuit.

If no errors are found and the fault is permanent, replace the boost pressure sensor.

Remedy as necessary.

Other information: 

• To connect the breakout box / access the control module, see connecting the breakout box
• To access or replace the boost pressure sensor, see Temperature and pressure sensor, replacing
• For information about signals, see ELECTRICAL SYSTEM
• See Contents .

Fig 2: Identifying 4-Bit connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Boost Pressure Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Verification