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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6L50/6L80/6L90 - DTC P0973 To DTC P2764 >> DTC P1684, P1685 or P1686 >> Conditions for Setting the DTC >> P1685

Conditions for Setting the DTC: P1685

The TCM power up temperature is less than or equal to -61°C (-77°F) for greater than 10 seconds.