volvo Workshop Repair Guides

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Page 39
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Ignition off

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Disconnect the audio/carphone wiring by disconnecting the lower connector on the cruise control switch

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Ignition on.

Activate the buttons. Read off the status of the buttons in the cruise control switch.
If the readings give a correct result, the fault is in the wiring between the audio/carphone switch and the cruise control switch.

Other information:

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To access the cruise control switch, see the relevant service procedure.

Was the status of the cruise control switch OK?

Yes - Fault Found

No - Checking components and wiring

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Checking components and wiring

Relays and Modules > Relays and Modules - Steering and Suspension > Relays and Modules - Steering > Steering Mounted Controls Communication Module > Component Information > Testing and Inspection > Reading and Clearing Diagnostic Trouble Codes > Page 1090

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