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Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

The Diagnostic Fault Information table identifies each circuit that makes up an electrical subsystem and the associated circuit faults. DTCs and symptoms are listed in the table for all circuit fault modes. This information can be used to diagnose an electrical fault, or as a quick visual aid showing how the different DTCs and symptoms apply for the subsystem being diagnosed.

All DTCs and symptoms shown in this table are not necessarily diagnosed during this procedure.

An example table from an engine coolant temperature (ECT) procedure:

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Signal P0117 P0118, P0119 P0118*, P0119 P0128, P111E
Low Reference - P0118, P0119 - P0128
*Internal control module or component damage may occur if the circuit shorts to B+.
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