Checking for contact resistance and oxidation

Repair or replace the connectors of the sub-antenna and the audio module (AUM), checking for contact resistance and oxidation:

See Contact resistance and oxidation

If radio reception is now OK, the fault was poor contact in the connectors.

Other information: 

• For -2004, see:Radio cassette player, replacing .
• For 2005-, see:Audio unit, replacing .
• To access/replace the sub-antenna:

  See Sub-antenna in bumper / amplifier

• See Connecting the breakout box, Audio control module
• For information on signals and connectors:

  See The audio control module, green connector

  See Audio control module (to aerial)

Fig 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Is radio reception OK? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking wiring and component