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Page 25
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Ignition off

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Disconnect the audio / carphone switch by disconnecting the lower connector on the audio / carphone 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 audio / carphone switch.

Other information:

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To access the audio / carphone 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

No - Checking components and wiring 4

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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 1130

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