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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 505 (Automatic Transmission - 2ML70 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0973 or P0974 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

P0973 

The control solenoid valve assembly detects an internal low voltage electrical malfunction of the shift solenoid 1 control circuit when shift solenoid 1 is commanded OFF for 1 second.

P0974 

The control solenoid valve assembly detects an internal high voltage electrical malfunction of the shift solenoid 1 control circuit when shift solenoid 1 is commanded ON for 1 second.

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