Checking component

Check that the fuses for the RTI (road traffic information) and audio control module are intact. The fuses are located in the passenger compartment and the cargo area fuse boxes
Ignition on.
Measure the voltage between #J11 and #J15. Voltage must be approximately 12 V.

Measure the voltage between #J12 and #J15. Voltage must be approximately 12 V.

Measure the voltage between #J13 and #J15. Voltage must be approximately 12 V.

Check the cable between the display screen terminal #J18 and control module terminal #C12. 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 fuses, see Fusebox, passenger compartment, replacing
- To access and replace the display screen, see Display screen / loudspeaker, RTI (road traffic information), replacing
- To program and access or replace the RTI (road traffic information) control module, see Removal
- 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")
- See Checking wiring 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.

Was a fault detected?