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Automatic Transmission - 2ML70 - Specifications: Maintenance GMC Yukon III

Transmission Fluid Pressure Switch Logic

GearTFP SW 1*TFP SW 3TFP SW 4TFP SW 5
M1 (48 km/h (30 mph))LowLowLowHigh
M2 (48 km/h (30 mph))LowLowLowHigh
M3 (48 km/h (30 mph))LowLowLowLow
M4 (48 km/h (30 mph))HighHighHighHigh
Power OFFLowLowLowLow
High = 12V (Switch Open or Pressurized) Low = 0 volts (Switch Closed or No Pressure) Note: All TFP switches are normally closed (NC) *TFP switch 2 does not exist