Home/Chevrolet/Silverado 3500 HD/Chevrolet Silverado 3500 HD (2007-2012)/Repair manual/Communication Devices/U1511

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Wiring diagrams Section: Communication Devices

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U1511 Chevrolet Silverado 3500 HD

Communication Devices

If set in the driver door lock window switch or passenger door lock window switch, no window on the specific side of the vehicle will operate if the open is before the first splice from the door module, and both DTC U1511 and U1512 should set. If open after the first splice, the individual window will be inoperative and a single DTC should set.
If set in the BCM, the compass is inoperative in the DIC.