volvo Workshop Repair Guides

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Page 19
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Checking components and wiring

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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 Keypad steering wheel, replacing, TF-80SC AWD, AW50/51 AWD, M66 AWD See: Accessories and
Optional Equipment/Sensors and Switches - Accessories and Optional Equipment/Steering Mounted Controls Assembly/Service and
Repair/Keypad Steering Wheel, Replacing.

Was the status of the cruise control switch OK?

Yes - Troubleshooting procedure complete

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 1124

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