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Diagnostic Fault Information

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

DTC U1814

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Accessory Wakeup Serial Data U1814 U0100 - -
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