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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 621 (ENGINE CONTROLS - 3.6L (LY7) (INTRODUCTION))COMPONENT LOCATORENGINE CONTROLS CONNECTOR END VIEWS
1998 Chevrolet Suburban K2500, 7.4 J, Part Time

Engine Controls Connector End Views

1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Engine Controls Connector End Views
WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Accelerator Pedal Position Connector End View (APP) Sensor

GM632357Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326829
  • 6-Way F (BLK)
Pin Wire Color Circuit No. Function
A PPL 1272 Low Reference
B LT BLU 1162 APP Sensor 2 Signal
C TAN 1274 5-Volt Reference
D BRN 1271 Low Reference
E DK BLU 1161 APP Sensor 1 Signal
F WHT/BLK 1164 5-Volt Reference
Barometric Pressure (BARO) Sensor Connector End View

GM1331443Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403966
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
1 GRY 605 5-Volt Reference
2 TAN 470 Low Reference
3 ORN/BLK 5266 BARO Sensor Signal
Camshaft Position (CMP) Actuator Solenoid Connector End View - Exhaust Bank 1

GM1331453Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 7283-7526-30
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 WHT 5293 Ignition 1 Voltage
2 LT GRN 5282 Camshaft Actuator Solenoid Control - Exhaust Bank 1
Camshaft Position (CMP) Actuator Solenoid Connector End View - Exhaust Bank 2

GM1331453Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 7283-7526-30
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 WHT 5293 Ignition 1 Voltage
2 WHT/BLK 5283 Camshaft Actuator Solenoid Control - Exhaust Bank 2
Camshaft Position (CMP) Actuator Solenoid Connector End View - Intake Bank 1

GM1331453Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 7283-7526-30
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 WHT 5293 Ignition 1 Voltage
2 PNK 5284 Camshaft Actuator Solenoid Control - Intake Bank 1
Camshaft Position (CMP) Actuator Solenoid Connector End View - Intake Bank 2

GM1331453Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 7283-7526-30
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 WHT 5293 Ignition 1 Voltage
2 ORN/BLK 5252 Camshaft Actuator Solenoid Control - Intake Bank 2
Camshaft Position (CMP) Sensor Connector End View - Exhaust Bank 1

GM1331443Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403966
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
1 TAN 470 Low Reference
2 DK GRN 5273 CMP Sensor Signal Exhaust Bank 1
3 GRY 705 5-Volt Reference
Camshaft Position (CMP) Sensor Connector End View - Exhaust Bank 2

GM1331443Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403966
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
1 TAN 470 Low Reference
2 PPL 5274 CMP Sensor Signal Exhaust Bank 2
3 GRY 705 5-Volt Reference
Camshaft Position (CMP) Sensor Connector End View - Intake Bank 1

GM1331443Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403966
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
1 TAN 470 Low Reference
2 ORN 5275 CMP Sensor Signal Intake Bank 1
3 GRY 705 5-Volt Reference
Camshaft Position (CMP) Sensor Connector End View - Intake Bank 2

GM1331443Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403966
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
1 TAN 470 Low Reference
2 YEL 5276 CMP Sensor Signal Intake Bank 2
3 GRY 705 5-Volt Reference
Crankshaft Position (CKP) Sensor Connector End View

GM784092Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403874
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 PPL/WHT 5024 CKP Sensor Low
2 WHT/BLK 5039 CKP Sensor High
Engine Coolant Temperature (ECT) Sensor Connector End View

GM784092Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403874
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 YEL 410 ECT Sensor Signal
2 TAN 470 Low Reference
Engine Oil Level/Temperature Sensor Connector End View

GM646415Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326808
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
A BRN 1174 Oil Level Switch Signal
B DK GRN/WHT 357 Oil Temperature Sensor Signal
C TAN 470 Low Reference
Engine Oil Pressure (EOP) Sensor Connector End View

GM258299Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12065287
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
A TAN 470 Low Reference
B GRY 605 5-Volt Reference
C TAN/BLK 231 Oil Pressure Switch Signal
Evaporative Emissions (EVAP) Canister Purge Valve Solenoid Connector End View

GM1331450Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928404072
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 WHT 5293 Ignition 1 Voltage
2 DK GRN/WHT 428 EVAP Canister Purge Solenoid Control
Evaporative Emissions (EVAP) Canister Vent Solenoid Connector End View

GM684795Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12052643
  • 2-Way F (RED)
Pin Wire Color Circuit No. Function
A RED/WHT 1540 Battery Positive Voltage
B WHT 1310 EVAP Canister Vent Solenoid Control
Fuel Injector 1 Connector End View

GM603098Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305086
  • 2-Way F Metri-Pack 280.1 Series, Sealed (BLK)
Pin Wire Color Circuit No. Function
A WHT 5291 Ignition 1 Voltage
B TAN 1744 Fuel Injector 1 Control
Fuel Injector 2 Connector End View

GM603098Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305086
  • 2-Way F Metri-Pack 280.1 Series, Sealed (BLK)
Pin Wire Color Circuit No. Function
A WHT 5292 Ignition 1 Voltage
B LT GRN/BLK 1745 Fuel Injector 2 Control
Fuel Injector 3 Connector End View

GM603098Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305086
  • 2-Way F Metri-Pack 280.1 Series, Sealed (BLK)
Pin Wire Color Circuit No. Function
A WHT 5291 Ignition 1 Voltage
B PNK/BLK 1746 Fuel Injector 3 Control
Fuel Injector 4 Connector End View

GM603098Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305086
  • 2-Way F Metri-Pack 280.1 Series, Sealed (BLK)
Pin Wire Color Circuit No. Function
A WHT 5292 Ignition 1 Voltage
B LT BLU/BLK 844 Fuel Injector 4 Control
Fuel Injector 5 Connector End View

GM603098Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305086
  • 2-Way F Metri-Pack 280.1 Series, Sealed (BLK)
Pin Wire Color Circuit No. Function
A WHT 5291 Ignition 1 Voltage
B TAN/WHT 845 Fuel Injector 5 Control
Fuel Injector 6 Connector End View

GM603098Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305086
  • 2-Way F Metri-Pack 280.1 Series, Sealed (BLK)
Pin Wire Color Circuit No. Function
A WHT 5292 Ignition 1 Voltage
B YEL/BLK 846 Fuel Injector 6 Control
Fuel Pump and Sender Assembly Connector End View

GM456551Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12160482
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
A LT BLU 1937 Fuel Gage Sensor Signal - Primary
B GRY 120 Fuel Pump Supply Voltage
C BLK 1050 Ground
D TAN 452 Low Reference
Fuel Tank Pressure (FTP) Sensor Connector End View

GM516611Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12059595
  • 3-Way F (BLK)
Pin Wire Color Circuit No. Function
A TAN 452 Low Reference
B DK GRN 890 Fuel Tank Pressure Sensor Signal
C GRY 596 5-Volt Reference
Heated Oxygen Sensor (HO2S) Sensor 1 Connector End View

GM831392Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12092839
  • 4-Way M (BLK)
Pin Wire Color Circuit No. Function
A TAN/WHT 1669 HO2S Low Signal Sensor 1
B PPL/WHT 1668 HO2S High Signal Sensor 1
D PNK/BLK 5294 Ignition 1 Voltage
E GRY/WHT 3122 HO2S Heater Low Control Sensor 1
Heated Oxygen Sensor (HO2S) Sensor 2 Connector End View

GM831392Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12092839
  • 4-Way M (BLK)
Pin Wire Color Circuit No. Function
A TAN 1671 HO2S Low Signal Sensor 2
B PPL 1670 HO2S High Signal Sensor 2
D PNK/BLK 5294 Ignition 1 Voltage
E GRY/WHT 3223 HO2S Heater Low Control Sensor 2
Ignition Coil 1 Connector End View

GM1331446Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403441
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
1 PPL 2121 IC 1 Control
2 WHT 5291 Ignition 1 Voltage
3 BLK/WHT 1551 Ground
4 BLK 1550 Ground
Ignition Coil 2 Connector End View

GM1331446Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403441
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
1 ORN/WHT 2122 IC 2 Control
2 WHT 5292 Ignition 1 Voltage
3 BLK/WHT 151 Ground
4 BLK 150 Ground
Ignition Coil 3 Connector End View

GM1331446Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403441
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
1 LT BLU 2123 IC 3 Control
2 WHT 5291 Ignition 1 Voltage
3 BLK/WHT 1551 Ground
4 BLK 1550 Ground
Ignition Coil 4 Connector End View

GM1331446Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403441
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
1 DK GRN/WHT 2124 IC 4 Control
2 WHT 5292 Ignition 1 Voltage
3 BLK/WHT 151 Ground
4 BLK 150 Ground
Ignition Coil 5 Connector End View

GM1331446Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403441
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
1 DK GRN 2125 IC 5 Control
2 WHT 5291 Ignition 1 Voltage
3 BLK/WHT 1551 Ground
4 BLK 1550 Ground
Ignition Coil 6 Connector End View

GM1331446Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403441
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
1 LT BLU/WHT 2126 IC 6 Control
2 WHT 5292 Ignition 1 Voltage
3 BLK/WHT 151 Ground
4 BLK 150 Ground
Intake Manifold Runner Control (IMRC) Solenoid Connector End View

GM1331444Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 7283-8226-30
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 LT BLU/WHT 5041 Intake Manifold - Output 1
2 WHT 5293 Ignition 1 Voltage
Knock Sensor (KS) Bank 1 Connector End View

GM784092Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403874
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 DK BLU 496 Knock Sensor Bank 1 Signal
2 GRY 1716 Low Reference
Knock Sensor (KS) Bank 2 Connector End View

GM784092Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403874
  • 2-Way F (BLK)
Pin Wire Color Circuit No. Function
1 LT BLU 1876 Knock Sensor Bank 2 Signal
2 TAN 407 Low Reference
Mass Air Flow (MAF) Sensor Connector End View

GM816170Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1928403200
  • 5-Way F (BLK)
Pin Wire Color Circuit No. Function
1 TAN 472 IAT Sensor Signal
2 PNK 739 Ignition 1 Voltage
3 BLK 2760 Low Reference
4 GRY 596 5-Volt Reference
5 YEL 492 MAF Sensor Signal
Throttle Body Assembly Connector End View

GM831393Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 1-967616-1
  • 6-Way F (BLK)
Pin Wire Color Circuit No. Function
1 YEL 581 TAC Motor Control 1
2 TAN 2752 Low Reference
3 GRY 2701 5-Volt Reference
4 TAN 582 TAC Motor Control 2
5 PPL 486 TP Sensor 2 Signal
6 DK GRN 485 TP Sensor 1 Signal
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • 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.