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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Automatic Transmission - 6L50/6L80/6L90 - DTC P0973 To DTC P2764) >> DTC P1825 or P1915 >> Conditions for Setting the DTC >> Fail Case 1

Fail Case 1

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The TFP Switch 3 or TFP Switch 4 is pressurized with the commanded gear 1st - engine braking and the IMS indicates a 01 (Invalid) transitional state for 8 seconds or more.

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