2004 Chevrolet ClassicFACTORY OEM SERVICE PROCEDURE

Engine Controls Connector End Views

Crankshaft Position (CKP) Sensor Connector End View

GM237066Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162192
  • 2-Way F Metri-Pack 150.2 Series Pull-to-Seat Sealed (BLK)
Pin Wire Color Circuit No. Function
A PPL 574 Low Reference
B YEL 573 CKP Sensor 1 Signal
Engine Coolant Temperature (ECT) Sensor Connector End View

GM655692Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162192
  • 2-Way F Metri-Pack 150.2 Series Pull-to-Seat Sealed (BLK)
Pin Wire Color Circuit No. Function
A BLK/WHT 2761 Low Reference
B YEL 410 ECT Sensor Signal
Evaporative Emission (EVAP) Canister Purge Solenoid Connector End View

GM684795Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12052637
  • 2-Way F Metri-Pack 150 Series Sealed (RED)
Pin Wire Color Circuit No. Function
A BRN 241 Ignition 3 Voltage
B DK GRN/
WHT		 428 EVAP Canister Purge Solenoid Control
Evaporative Emission (EVAP) Canister Vent Solenoid Connector End View

GM334626Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12059862
  • 2-Way F Metri-Pack 150 Series Sealed (BRN)
Pin Wire Color Circuit No. Function
A BRN 241 Ignition 3 Voltage
B WHT 1310 EVAP Canister Vent Solenoid Control
Fuel Injector 1 Connector End View

GM806497Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326180
  • 2-Way F Micro-Pack 64 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A PNK 839 Ignition 1 Voltage
B BLK 1744 Fuel Injector 1 Control
Fuel Injector 2 Connector End View

GM806497Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326180
  • 2-Way F Micro-Pack 64 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A PNK 839 Ignition 1 Voltage
B LT GRN/
BLK		 1745 Fuel Injector 2 Control
Fuel Injector 3 Connector End View

GM806497Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326180
  • 2-Way F Micro-Pack 64 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A PNK 839 Ignition 1 Voltage
B PNK/BLK 1746 Fuel Injector 3 Control
Fuel Injector 4 Connector End View

GM806497Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326180
  • 2-Way F Micro-Pack 64 Series Sealed (BLK)
A PNK 839 Ignition 1 Voltage
B LT BLU/
BLK		 844 Fuel Injector 4 Control
Fuel Pump and Sender Assembly Connector End View

GM258300Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12059110
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A PPL 1589 Fuel Level Sensor Signal
B GRY 120 Fuel Pump Supply Voltage
C BLK 650 Ground
D BLK/WHT 651 Ground
Fuel Tank Pressure (FTP) Sensor Connector End View

GM516611Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12059595
  • 3-Way F Metri-Pack 150 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A ORN/BLK 469 Low Reference
B DK GRN 890 Fuel Tank Pressure Sensor Signal
C GRY 416 5 Volt Reference
Heated Oxygen Sensor (HO2S) Sensor 1 Connector End View

GM456551Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12160479
  • 4-Way F Metri-Pack 150 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A TAN 1667 HO2S Low Signal (Bank 1 Sensor 1)
B PPL 1666 HO2S High Signal (Bank 1 Sensor 1)
C DK GRN 676 HO2S Heater Low Control (Bank 1 Sensor 1)
D PNK 1039 Ignition 1 Voltage
Heated Oxygen Sensor (HO2S) Sensor 2 Connector End View

GM806613Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326423
  • 4-Way M Metri-Pack 150 Series Sealed (GRY)
Pin Wire Color Circuit No. Function
A TAN/WHT 1669 HO2S Low Signal (Bank 1 Sensor 2)
B PPL/WHT 1668 HO2S High Signal (Bank 1 Sensor 2)
C BLK/WHT 1423 HO2S Heater Low Control (Bank 1 Sensor 2)
D BRN 241 Ignition 3 Voltage
Idle Air Control (IAC) Valve Connector End View

GM684948Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15354717
  • 4-Way F Global Terminal 150 Sealed Series (BLK)
Pin Wire Color Circuit No. Function
A LT GRN/
BLK		 444 IAC Coil B Low Control
B LT GRN/
WHT		 1749 IAC Coil B High Control
C LT BLU/
BLK		 1748 IAC Coil A Low Control
D LT BLU/
WHT		 1747 IAC Coil A High Control
Ignition Control Module (ICM) Connector End View

GM806615Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326098
  • 9-Way F Global Terminal 150 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A PNK 239 Ignition 1 Voltage
B WHT 423 IC Timing Control
C-D - - Not Used
E BLK 450 Ground
F BRN/WHT 633 CMP Sensor Signal
G ORN 406 IC Timing Control B
H-J - - Not Used
Intake Air Temperature (IAT) Sensor Connector End View

GM646180Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162196
  • 2-Way F Metri-Pack 150.2 Series Pull-to-Seat Sealed (MD GRY)
Pin Wire Color Circuit No. Function
A BLK 2760 Low Reference
B TAN 472 IAT Sensor Signal
Knock Sensor (KS) Connector End View

GM684799Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12077901
  • 2-Way F Metri-Pack 280 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A DK BLU 496 Knock Sensor Signal
B GRY 1716 Low Reference
Manifold Absolute Pressure (MAP) Sensor Connector End View

GM684840Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129945
  • 3-Way F Metri-Pack 150 Series Sealed (GRY)
Pin Wire Color Circuit No. Function
A
 		 ORN/BLK 469 Low Reference
B LT GRN 432 MAP Sensor Signal
C GRY 2704 5 Volt Reference
Throttle Position (TP) Sensor Connector End View

GM646415Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326807
  • 3-Way F Global Terminal 150 Series Sealed (BLK)
Pin Wire Color Circuit No. Function
A GRY/BLK 2701 5 Volt Reference
B BLK 2752 Low Reference
C DK BLU 417 TP Sensor Signal
Factory Service Tools

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When to See a Mechanic

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  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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