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Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U18A2 U18A2 - -
Ignition U18A2 U18A2 - -
Accessory Wake Up Serial Data (circuit 5985) U1814 U18A2 - -
Fuel Pump Primary Relay Control (circuit 465) U18A2 U18A2 - -
Powertrain Sensor Bus Enable (circuit 4320) U18A2 U18A2 - -
Powertrain High Speed GMLAN Serial Data (+) (circuit 7493) U0074* U0074* U0074* -
Powertrain High Speed GMLAN Serial Data (-) (circuit 7494) U0074* U0074* U0074* -
Ground - U18A2 - -
* Other DTCs may set with this fault.
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