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PCM Connector End View C1

PCM Connector End View C1

GM820235Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 34-Pin
  • WHT
Pin Wire Color Function
1 YEL Fuel Injector 1 Control
2 BLK Fuel Injector 2 Control
3 WHT Fuel Injector 3 Control
4 BLU Fuel Injector 4 Control
5 BLK/BLU Idle Air Control (IAC) Valve Control
6 WHT/BLK Ground
7 WHT/BLK Ground
8 RED/BLU Ignition Trigger Signal Coil 1
9 YEL/GRN Ignition Trigger Signal Coil 2
10 GRY Ignition Trigger Signal Coil 3
11 WHT Ignition Trigger Signal Coil 4
12 BLU/BLK EVAP Canister Purge Solenoid Valve Control
13 YEL AC Pressure Switch
14 BLK/YEL Camshaft Position (CMP) Actuator Solenoid Valve High Control
15 YEL Camshaft Position (CMP) Actuator Solenoid Valve Low Control
16 PNK Line Pressure Control (PC) Solenoid Control Low*
17 RED/WHT Line Pressure Control (PC) Solenoid Controll High*
18 YEL 5-Volt Reference Circuit
19 WHT Engine Coolant Temperature (ECT) Sensor Input
20 YEL/BLK Intake Air Temperature (IAT) Sensor Input
21 LT GRN Throttle Position (TP) Sensor Input
22 - Not Used
23 BLU/YEL Ignition Fail Safe Input
24-25 - Not Used
26 BLK Camshaft Position (CMP) Sensor Input
27 BLK Crankshaft Position (CKP) Sensor Input
28 BRN Sensor Ground
29 - Not Used
30 WHT/BLU Transmission Fluid Temperature Sensor Input, with AWD Only*
31-33 - Not Used
34 WHT CMP Sensor and CKP Sensor Ground
*Automatic Transmission Only


PCM Connector End View C1

GM820235Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 34-Pin
  • WHT
Pin Wire Color Function
1 YEL Fuel Injector 1 Control
2 BLK Fuel Injector 2 Control
3 WHT Fuel Injector 3 Control
4 BLU Fuel Injector 4 Control
5 BLK/BLU Idle Air Control (IAC) Valve Control
6 WHT/BLK Ground
7 WHT/BLK Ground
8 RED/BLU Ignition Trigger Signal Coil 1
9 YEL/GRN Ignition Trigger Signal Coil 2
10 GRY Ignition Trigger Signal Coil 3
11 WHT Ignition Trigger Signal Coil 4
12 BLU/BLK EVAP Canister Purge Solenoid Valve Control
13 YEL AC Pressure Switch
14 BLK/YEL Camshaft Position (CMP) Actuator Solenoid Valve High Control
15 YEL Camshaft Position (CMP) Actuator Solenoid Valve Control Low
16 PNK Line Pressure Control (PC) Solenoid Control Low*
17 RED/WHT Line Pressure Control (PC) Solenoid Control High*
18 YEL 5-Volt Reference Circuit
19 WHT Engine Coolant Temperature (ECT) Sensor Input
20 YEL/BLK Intake Air Temperature (IAT) Sensor Input
21 LT GRN Throttle Position (TP) Sensor Input
22 - Not Used
23 BLU/YEL Ignition Fail Safe Input
24 BLU/YEL Rocker Arm Oil Control Solenoid Valve Control High
25 BLK Rocker Arm Oil Control Solenoid Valve Control Low
26 BLK Camshaft Position (CMP) Sensor Input
27 BLK Crankshaft Position (CKP) Sensor Input
28 BRN Sensor Ground
29 - Not Used
30 LT GRN Secondary AIR Injection Pressure Sensor Input
31-32 - Not Used
33 BLK/BLU Secondary AIR Injection Solenoid Valve Control
34 WHT CMP Sensor and CKP Sensor Ground
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