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PCM Connector End View C3

PCM Connector End View C3

GM820244Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 35-Pin
  • WHT
Pin Wire Color Function
1 BLU EVAP Canister Vent Solenoid Valve Control
2 YEL/BLK AC Compressor Clutch Relay Control
3 - Not Used
4 PNK/BLK Heated Oxygen Sensor (HO2S) 2 Heater Circuit Control
5-6 - Not Used
7 LT GRN Overdrive (OD) Indicator Control*
8 LT GRN/BLK Park Neutral Position (PNP) Switch L Position Signal*
9 LT GRN Park Neutral Position (PNP) Switch 2 Position Signal*
10 BLU Park Neutral Position (PNP) Switch D Position Signal*
11 RED/BLK Park Neutral Position (PNP) Switch R Position Signal*
12-13 - Not Used
14 YEL/RED Engine Coolant Temperature Gage Output
15-16 - Not Used
17 PPL/WHT Vehicle Speed Sensor (VSS) Input
18 RED/YEL Over-Drive (OD) Cut Signal, with Cruise Control*
19 GRN/WHT Brake Switch Signal
20-28 - Not Used
29 GRN/BLK Overdrive (OD) Switch Signal*
30 - Not Used
31 YEL AC Request Signal
32 BLK/BLU Evaporator Temperature Sensor Input
33 GRN/WHT AC On Signal
34-35 - Not Used
*Automatic Transmission Only


PCM Connector End View C3

GM820244Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 35-Pin
  • WHT
Pin Wire Color Function
1 BLU EVAP Canister Vent Solenoid Valve Control
2 YEL/BLK AC Compressor Clutch Relay Control
3 - Not Used
4 PNK/BLK Heated Oxygen Sensor (HO2S) 2 Heater Circuit Control
5 BLU/WHT Auxiliary Intake Air Control Solenoid Control
6 - Not Used
7 LT GRN Overdrive (OD) Indicator Control
8 LT GRN/BLK Park Neutral Position (PNP) Switch L Position Signal
9 LT GRN Park Neutral Position (PNP) Switch 2 Position Signal
10 BLU Park Neutral Position (PNP) Switch D Position Signal
11 RED/BLK Park Neutral Position (PNP) Switch R Position Signal
12-13 - Not Used
14 YEL/RED Engine Coolant Temperature Gage Output
15-16 - Not Used
17 PPL/WHT Vehicle Speed Sensor (VSS) Input
18 RED/YEL Overdrive (OD) Cut Signal, with Cruise Control*
19 GRN/WHT Brake Switch Signal
20-28 - Not Used
29 GRN/BLK Overdrive (OD) Switch Signal*
30 - Not Used
31 YEL AC Request Signal
32 BLK/BLU Evaporator Temperature Sensor Input
33 GRN/WHT AC On Signal
34-35 - Not Used