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Back View Of the PCM Connector C3 Connector End View

Back View Of the PCM Connector C3 Connector End View

GM690490Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 2.5L VIN 4 Powertrain
  • 20 Pin Connector C3 with White Terminal Secondary Lock Insert
Pin Wire Color Function
C3-1 LT GRN/RED Shift Solenoid #2 Control
C3-2 GRN/YEL TCC Solenoid Control
C3-3 RED TR Switch R Position Signal
C3-4 ORN/GRN TR Switch P Position Signal
C3-5 ORN/WHT 4WD Low Signal
C3-6 LT GRN Shift Solenoid #1 Control
C3-7 ORN/BLK 4WD Indicator Lamp Control
C3-8 BLU/GRN A/T Input Shaft Speed Sensor Signal Low
C3-9 ORN A/T Output Shaft Speed Sensor Signal Low
C3-10 WHT A/T Output Shaft Speed Sensor Signal High
C3-11 BLK/ORN 4WD Signal
C3-12 YEL/GRN TR Switch D Position Signal
C3-13 ORN/BLU TR Switch N Position Signal
C3-14 GRY Shaft Speed Signal Shielded Ground
C3-15 RED Axle Actuator Control High
C3-16 BLU/YEL A/T Input Shaft Speed Sensor Signal High
C3-17 - Not Used
C3-18 PNK Axle Actuator Control Low
C3-19 GRN/BLU TR Switch L Position Signal
C3-20 GRN/ORG TR Switch 2 Position Signal