Checking component

Check the cable between display screen terminal #J4 and road traffic information (RTI) control module terminal #C4. Check for a short-circuit to supply voltage. Check for a short-circuit to ground. Check for an open-circuit.

Check the cable between display screen terminal #J10 and road traffic information (RTI) control module terminal #C10. Check for a short-circuit to supply voltage. Check for a short-circuit to ground. Check for an open-circuit.

Check the cable between display screen terminal #J7 and road traffic information (RTI) control module terminal #C7. Check for a short-circuit to supply voltage. Check for a short-circuit to ground. Check for an open-circuit.

Remedy as necessary.

Other information: 

• To access and replace the display screen, see Display screen / loudspeaker, RTI (road traffic information), replacing
• To fault-trace wiring and terminals, see Checking wiring and terminals
• For information about programming and replacing the road traffic information (RTI) control module, see Road traffic information module (RTI), 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 .

Fig 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Replacing display screen