XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
-
Ignition off.
-
Disconnect RTI switch unit.
-
Ignition on.
Activate buttons and read status on audio/telephone switch unit buttons.
If read-out gave a correct result the fault is in the RTI switch unit.
Additional information:
-
To access RTI switch unit, see the relevant service procedure.
Did read-out of status on audio/telephone switch unit give a correct result?
Yes - Fault Found
No - Checking the wires and components
-------------------------------------------------
Checking the wires and components
