Checking the Wiring

Check the connectors for the upper electronic module (UEM) and rain sensor. Check for contact resistance and oxidation.

Also check the rain sensor and GSM antenna wiring (if applicable). Ensure that there are no sources of interference nearby.

Remedy as necessary.

Other information: 

• See Interior Lighting And Upper Electronic Module (UEM), Replacing
• See Rain Sensor
• See Signal Specification
• See Checking Wiring And Terminals

Fig 2: 10-CD Changer Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Verification