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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 P1825 or P1915 >> Component Testing

Component Testing

Internal Mode Switch Logic Table

Gear Selector Position A B C P
Park LOW HI HI LOW
Park/Reverse LOW LOW HI LOW
Reverse LOW LOW HI HI
Reverse/Neutral HI LOW HI HI
Neutral HI LOW HI LOW
Neutral/Drive 6 HI LOW LOW LOW
Drive 6 HI LOW LOW HI
Drive 4 LOW LOW LOW LOW
Drive 3 LOW HI LOW HI
Drive 2 HI HI LOW LOW
Invalid HI HI HI HI
LOW HI HI HI
HI HI HI LOW
HI = Ignition voltage
LOW = 0 voltage