Checking wiring and connectors

Check the connector for the air conditioning (A/C) relay. Check for contact resistance and oxidation. Check for loose connections.

Check the signal cable between control module terminal #B44 and air conditioning (A/C) relay terminal #4. Check the power supply between system relay terminal #3 and A/C relay terminal #2. Check for an intermittent open-circuit.

Other information 

• To connect the breakout box / access the control module, see Connecting the breakout box
• For information about signals on 5-cylinder engines, see Signal specification or Signal specification
• See Contents .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying A/C Relay

Courtesy of VOLVO CARS OF NORTH AMERICA.

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