Checking the connectors

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Check the boost pressure sensor connector for contact resistance and oxidation according to Contact resistance and oxidation and loose connections according to Loose connections (terminals) . Check for damage carefully.

Check the signal cable between boost pressure sensor terminal 3 and control module terminal 13. Check the power supply cable between boost pressure sensor terminal 1 and control module terminal 74. Check these cables for an intermittent open-circuit according to Open-circuit, intermittent faults .

HINT: The boost pressure sensor receives 5 V from control module terminal 74.

Check the signal cable between boost pressure sensor terminal 3 and control module terminal 13 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Other information:
- To connect the breakout box, see Connecting the breakout box. EMS 2000
- For information about signals, see Signal specification
- To replace the boost pressure sensor, see Replacing the atmospheric pressure sensor .
Fig 2: Identifying Boost Pressure Sensor Connector Terminals
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.

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