Checking contact resistance, oxidation and wiring

Check the CD-ROM player connectors K and D and the RTI connectors A and D. Check for contact resistance and oxidation.

Check the wiring between CD-ROM player terminals #L1, #L2, #L4, #L5 and Road Traffic Information (RTI) control module terminals #D1, #D2, #D4, #D5. Check for a short-circuit to ground.

Remedy as necessary.

Other information: 

• To access and replace the Road Traffic Information (RTI) control module, see Removal
• To access and replace the CD-ROM player, see CD reader, RTI (road traffic information), replacing
• To connect the breakout box, see Connecting the breakout box to the Road Traffic Information (RTI) control module
• For information about signals and connectors, see Signal specification, RTI
• See Checking cables and terminals 

Fig 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.