Checking the Component

Check the cable between display screen terminal #J18 and RTI control module terminal #C12. Check for a short-circuit to supply voltage according to Short-Circuit To Supply Voltage. Permanent Faults . Check for a short-circuit to ground according to Short-Circuit To Ground, Permanent Faults . Check for an open-circuit according to Open-Circuit, Permanent Faults .

Check the cable between display screen terminal #J9 and RTI control module terminal #C14. Check for a short-circuit to supply voltage according to Short-Circuit To Supply Voltage. Permanent Faults . Check for a short-circuit to ground according to Short-Circuit To Ground, Permanent Faults . Check for an open-circuit according to Open-Circuit, Permanent Faults .

Check the cable between display screen terminal #J5 and RTI control module terminal #C3. Check for a short-circuit to supply voltage according to Short-Circuit To Supply Voltage. Permanent Faults . Check for a short-circuit to ground according to Short-Circuit To Ground, Permanent Faults . Check for an open-circuit according to Open-Circuit, Permanent Faults .

Remedy as necessary.

Other information: 

• To access and replace the display screen, see Display Screen/Loudspeaker, RTI (Road Traffic Information), Replacing
• To program and access or replace the 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 RTI Control Module (To Display) and Display (To RTI Control Module And "Chassis") .

Fig 1: 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 the Component