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Home >> Chevrolet >> 2005 >> Impala SS >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - Introduction & Repair Instructions >> Specifications >> Transmission Internal Mode Switch Logic
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Transmission Internal Mode Switch Logic

Transmission Internal Mode Switch Logic

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 4 HI LOW LOW LOW
Drive 4 HI LOW LOW HI
Drive 4/Drive 3 LOW LOW LOW HI
Drive 3 LOW LOW LOW LOW
Drive 3/Drive 2 LOW HI LOW LOW
Drive 2 LOW HI LOW HI
Drive 2/Drive 1 HI HI LOW HI
Drive 1 HI HI LOW LOW
Invalid HI HI HI HI
LOW HI HI HI
HI HI HI LOW
  • HI = Ignition voltage
  • LOW = 0 voltage