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Back View of PCM Connector End View C2

Back View of PCM Connector End View C2

GM789639Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 35-Pin
  • WH
Pin Wire Color Function
1 BK Knock Sensor (KS) Signal High
2 WH Knock Sensor (KS) Signal Low
3-5 - Not Used
6 PK Heated Oxygen Sensor (HO2S) 1 Heater Circuit Control
7 WH/BK Ground
8 GY EVAP Vacuum Leak Pump Control
9 L-GN/BK Fan 2 Relay Control
10-15 - Not Used
16 BU/YE Rocker Arm Oil Control Solenoid Valve Control High
17 BK Rocker Arm Oil Control Solenoid Valve Control Low
18 - Not Used
19 BU/BK EVAP Canister Purge Solenoid Valve Control
20 - Not Used
21 L-GN Fan 1 Relay Control
22 RD Heated Oxygen Sensor (HO2S) 1 Input
23-26 - Not Used
27 YE AC Pressure Switch
28 WH/BK Ground
29 - Not Used
30 BU/RD Power Steering Pressure (PSP) Switch Input
31-35 - Not Used