Checking components and wiring (with RTI)

Activate and read off the status of the buttons in the audio / carphone switch.

If the readings give a correct result, the fault is in the RTI switch.

Other information: 

• To access the RTI switch, see RTI switch .

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.