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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+ U1876* U1876 - -
Ignition U1876* U1876* - -
Accessory WakeUp Serial Data 2 P24EF, P24F0, P24F1, U1876* U1876* - -
High Speed GMLAN Serial Data (+) U0073* U0073, U1876* U0073* -
High Speed GMLAN Serial Data (-) U0073* U0073, U1876* U0073* -
Powertrain High Speed GMLAN Serial Data (+)
or High Speed GMLAN Serial Data (+) (3)		 U0074* U0074, U1876* U0074* -
Powertrain High Speed GMLAN Serial Data (-)
or High Speed GMLAN Serial Data (-) (3)		 U0074* U0074, U1876* U0074* -
Ground - U1876* - -
* Other DTCs may set with this fault and multiple symptoms including a no start condition may occur.
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