S80 T6 Executive L6-2.8L Turbo VIN 90 B6284T (2001)
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Checking the wires and components
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Ignition off.
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Disconnect cable to audio/telephone by loosening the lower connector on the cruise-control switch unit.
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Ignition on.
Activate buttons and read status on cruise-control switch unit buttons.
If read-out gave a correct result the fault is in the cable between the audio/telephone switch unit and cruise-control switch unit.
Additional information:
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To access cruise control switch unit, see RTI switch See: Steering/Steering Mounted Controls Assembly/Service and Repair/RTI Switch.
Did read-out of status on cruise-control switch unit give a correct result?
Yes - FAULT FOUND
no - Checking the wires and components
