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Home >> Buick >> 2013 >> Verano Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6T40/6T50 - Specifications >> Specifications >> Transmission Fluid Pressure Switch Logic

Transmission Fluid Pressure Switch Logic

Transmission Fluid Pressure Switch Logic

Gear Transmission Fluid Pressure Switch States
Switch 1 *Switch 3 Switch 4 Switch 5
Park Low Low Low Low
Reverse Low Low Low Low
Neutral Low Low Low Low
Drive 1st - Engine Braking Low High Low Low
Drive 1st High High Low High
Drive 2nd High Low Low High
Drive 3rd Low High Low High
Drive 4th High High Low Low
Drive 5th Low High High Low
Drive 6th High Low High Low
High = 12V (Switch Open or Pressurized)
Low = 0V (Switch Closed or No Pressure)
Note: All transmission fluid pressure switches are normally closed (NC)
*Transmission fluid pressure switch 2 does not exist