Engine Control Module (ECM) Connector End Views
Engine Control Module (ECM) C1 Connector Part Information 15491996 56-Way F Micro-Pack 64 Series (BU) Pin Wire Color Circuit No. Function 1 TN/WH 2500 High Speed GMLAN Serial Data Bus (+) 2 TN 2501 High Speed GMLAN Serial Data Bus (-) 3 - - Not Used 4 BN/WH 419 MIL Control 5-6 - - Not Used 7 BN 1271 Low Reference 8 PU 1272 Low Reference 9 - - Not Used 10 YE 5991 Powertrain Relay Coil Control 11-12 - - Not Used 13 YE/BK 625 Starter Enable Relay Control 14 PK 839 Ignition 1 Voltage 15 YE 710 Class 2 Serial Data 16 D-GN 1049 Class 2 Serial Data 17 GY 397 Cruise Control On Switch Signal (K34) 18 PK 1020 Ignition 0 Voltage 19 PK 439 Ignition 1 Voltage 20 OG 240 Battery Positive Voltage 21 D-GN/WH 817 Vehicle Speed Signal 22 D-BU 1161 APP Sensor 1 Signal 23 D-BU 2364 Cooling Fan Speed Signal 24 D-GN 890 Fuel Tank Pressure Sensor Signal 25 - - Not Used 26 RD/BK 380 A/C Refrigerant Pressure Sensor Signal 27 D-BU 84 Cruise Control Set/Coast Switch Signal (K34) 28 - - Not Used 29 TN 1274 5-Volt Reference 30 GY 2700 5-Volt Reference 31 GY 2709 5-Volt Reference 32 L-BU 1320 CHMSL Supply Voltage (K34) 33 GY/BK 87 Cruise Control Resume/Accel Switch Signal (K34) 34 - - Not Used 35 WH/BK 1164 5-Volt Reference 36 WH/BK 2366 Cooling Fan Clutch Control 37 PU 1589 Fuel Level Sensor Signal 38-40 - - Not Used 41 L-BU 1162 APP Sensor 2 Signal 42-44 - - Not Used 45 D-GN/WH 465 Fuel Pump Relay Control 46 PU 420 TCC Brake Switch/Cruise Control Release Signal 47 - - Not Used 48 WH 121 Engine Speed Signal 49 YE/BK 1827 Vehicle Speed Signal 50 - - Not Used 51 OG/BK 1786 Ignition Lock Cylinder Control Actuator Signal 52 PU 806 Crank Voltage 53 - - Not Used 54 WH 1310 EVAP Canister Vent Solenoid Control 55 BK 2751 Low Reference 56 - - Not Used
Engine Control Module (ECM) C2 Connector Part Information 15481009 73-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function 1 L-GN 3212 HO2S Heater Low Control - Bank 2 Sensor 1 2 BK/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1 3 - - Not Used 4 D-BU/WH 878 Fuel Injector 8 Control 5 BK 1744 Fuel Injector 1 Control 6 L-GN/BK 1745 Fuel Injector 2 Control 7 RD/BK 877 Fuel Injector 7 Control 8 L-BU/BK 844 Fuel Injector 4 Control 9 PK/BK 1746 Fuel Injector 3 Control 10 BK/WH 845 Fuel Injector 5 Control 11-12 - - Not Used 13 YE/BK 846 Fuel Injector 6 Control 14 YE/BK 1868 Low Reference 15 PK/BK 632 Low Reference 16 BN 2129 Low Reference 17 OG 5494 Cylinder Shutoff Solenoid Control 4 (DOD) 18 GY 5493 Cylinder Shutoff Solenoid Control 3 (DOD) 19 - - Not Used 20 OG/BK 469 Low Reference 21 BK 2755 Low Reference 22-23 - - Not Used 24 TN /WH 332 Oil Pressure Sensor Signal 25 - - Not Used 26 BN/WH 633 CMP Sensor Signal 27-28 - - Not Used 29 PU 486 TP Sensor 2 Signal 30 - - Not Used 31 D-GN 485 TP Sensor 1 Signal 32 - - Not Used 33 D-BU 5491 Cylinder Shutoff Solenoid Control 1 (DOD) 34 L-GN 5492 Cylinder Shutoff Solenoid Control 2 (DOD) 35 GY 2704 5-Volt Reference 36 BK/WH 1704 Low Reference 37 GY 2705 5-Volt Reference 38-40 - - Not Used 41 L-BU /BK 1688 5-Volt Reference 42 - - Not Used 43 L-GN 1867 12-Volt Reference 44 RD 631 12-Volt Reference 45 GY 23 Generator Field Duty Cycle Signal 46 L-GN 432 MAP Sensor Signal 47 - - Not Used 48 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1 49 TN 1664 HO2S Low Signal - Bank 1 Sensor 1 50 D-GN/WH 428 EVAP Canister Purge Solenoid Control 51 PU 1666 HO2S High Signal - Bank 2 Sensor 1 52 BK 2761 Low Reference 53 RD 2127 IC 7 Control 54 PU 2121 IC 1 Control 55 YE 410 ECT Sensor Signal 56 RD 225 Generator Turn On Signal 57 L-BU/WH 2126 IC 6 Control 58 D-GN/WH 2124 IC 4 Control 59 D-GN 2125 IC 5 Control 60 BN 582 TAC Motor Control - 2 61 L-BU 2123 IC 3 Control 62 D-BU/WH 1869 CKP Sensor Signal 63 YE 581 TAC Motor Control - 1 64 BN/WH 2130 Low Reference 65 PU/WH 2128 IC 8 Control 66 RD/WH 2122 IC 2 Control 67 - - Not Used 68 D-BU 496 Knock Sensor 1 Signal 69 GY 1716 Low Reference 70 TN 1667 HO2S Low Signal - Bank 2 Sensor 1 71 GY 2303 Low Reference 72 L-BU 1876 Knock Sensor 2 Signal 73 BK 450 Ground
Engine Control Module (ECM) C3 Connector Part Information 15481007 56-Way F Micro 64 Sealed (GY) Pin Wire Color Circuit No. Function 1 - - Not Used 2 BN 2391 HO2S Heater Low Control - Bank 1 Sensor 2 3 RD/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2 4-5 - - Not Used 6 D-BU 1809 Brake Booster Vacuum Sensor Signal (DOD) 7-10 - - Not Used 11 YE 492 MAF Sensor Signal 12-14 - - Not Used 15 GY 416 5-Volt Reference (DOD) 16-17 - - Not Used 18 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2 19 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2 20 PU 1670 HO2S High Signal - Bank 2 Sensor 2 21 TN 1671 HO2S Low Signal - Bank 2 Sensor 2 22-23 - - Not Used 24 BK 2760 Low Reference 25-28 - - Not Used 29 GY/BK 1694 4WD Low Signal 30-32 - - Not Used 33 GY 2365 Low Reference 34 TN 472 IAT Sensor Signal 35 GY 597 5-Volt Reference 36 BK 452 Low Reference (DOD) 37 - - Not Used 38 TN/BK 464 Delivered Torque Signal 39-44 - - Not Used 45 YE 400 Signal High - Front 46 - - Not Used 47 OG/BK 463 Requested Torque Signal 48 - - Not Used 49 BK 2759 Low Reference 50 - - Not Used 51 D-GN/WH 459 A/C Compressor Clutch Relay Control 52-56 - - Not Used
Engine Controls Connector End Views
Accelerator Pedal Position (APP) Sensor Connector Part Information 15326830 6-Way F GT 150 Series, Sealed (BK) Pin Wire Color Circuit No. Function A PU 1272 Low Reference B L-BU 1162 APP Sensor 2 Signal C TN 1274 5-Volt Reference D BN 1271 Low Reference E D-BU 1161 APP Sensor 1 Signal F WH/BK 1164 5-Volt Reference
Brake Booster Vacuum Sensor (DOD) Connector Part Information 15448870 3-Way F 1.5 Series Sealed (GY) Pin Wire Color Circuit No. Function 1 D-BU 1809 Brake Booster Vacuum Sensor Signal 2 BK 452 Low Reference 3 GY 416 5-Volt Reference
Camshaft Position (CMP) Sensor Connector Part Information 12059595 3-Way F Metri-Pack 150 Series, Sealed (BK) Pin Wire Color Circuit No. Function A RD - 12-Volt Reference B PK/BK - Low Reference C BN/WH - CMP Sensor Signal
Crankshaft Position (CKP) Sensor Connector Part Information 15324165 3-Way F Metri-Pack 150 Series (NA) Pin Wire Color Circuit No. Function A D-BU/WH 1869 CKP Sensor Signal B YE/BK 1868 Low Reference C L-GN 1867 12-Volt Reference
Engine Coolant Temperature (ECT) Sensor Connector Part Information 15359366 2-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 2761 Low Reference B YE 410 ECT Sensor Signal
Engine Oil Pressure (EOP) Sensor Connector Part Information 15477863 3-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function 1 BK 2755 Low Reference 2 GY 2705 5-Volt Reference 3 TN/WH 332 Oil Pressure Sensor Signal
Evaporative Emission (EVAP) Canister Purge Solenoid Connector Part Information 12124037 2-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 239 Ignition 1 Voltage B D-GN/WH 428 EVAP Canister Purge Solenoid Control
Evaporative Emission (EVAP) Canister Vent Solenoid Connector Part Information 12052643 2-Way F Metri-Pack 150 Series Sealed (RD) Pin Wire Color Circuit No. Function A OG 540 Battery Positive Voltage B WH 1310 EVAP Canister Vent Solenoid Control
Fuel Injector 1 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1239 Ignition 1 Voltage B BK 1744 Fuel Injector 1 Control
Fuel Injector 2 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1339 Ignition 1 Voltage B L-GN/BK 1745 Fuel Injector 2 Control
Fuel Injector 3 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1239 Ignition 1 Voltage B PK/BK 1746 Fuel Injector 3 Control
Fuel Injector 4 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1339 Ignition 1 Voltage B L-BU/BK 844 Fuel Injector 4 Control
Fuel Injector 5 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1239 Ignition 1 Voltage B BK/WH 845 Fuel Injector 5 Control
Fuel Injector 6 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1339 Ignition 1 Voltage B YE/BK 846 Fuel Injector 6 Control
Fuel Injector 7 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1239 Ignition 1 Voltage B RD/BK 877 Fuel Injector 7 Control
Fuel Injector 8 Connector Part Information 15355226 2-Way F Metri-Pack 150 Tangless Series Sealed (BK) Pin Wire Color Circuit No. Function A PK 1339 Ignition 1 Voltage B D-BU/WH 878 Fuel Injector 8 Control
Fuel Pump and Sender Assembly Connector Part Information 15324862 4-Way F 2.8 Series Sealed (GY) Pin Wire Color Circuit No. Function 1 BK 2450 Ground 2 PU 1589 Fuel Level Sensor Signal 3 BK 2759 Low Reference 4 GY 120 Fuel Pump Supply Voltage
Fuel Tank Pressure (FTP) Sensor Connector Part Information 12059595 3-Way F Metri-Pack 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 2759 Low Reference B D-GN 890 Fuel Tank Pressure Sensor Signal C GY 2709 5-Volt Reference
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connector Part Information 12176897 4-Way F Metri-Pack 150 Series Sealed (GY) Pin Wire Color Circuit No. Function A TN 1664 HO2S Low Signal - Bank 1 Sensor 1 B PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1 C BK/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1 D PK 1539 Ignition 1 Voltage
Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Connector Part Information 15326423 4-Way M Metri-Pack 150 Series Sealed (GY) Pin Wire Color Circuit No. Function A TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2 B PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2 C BN 2391 HO2S Heater Low Control - Bank 1 Sensor 2 D PK 539 Ignition 1 Voltage
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 Connector Part Information 12176897 4-Way F Metri-Pack 150 Series Sealed (GY) Pin Wire Color Circuit No. Function A TN 1667 HO2S Low Signal - Bank 2 Sensor 1 B PU 1666 HO2S High Signal - Bank 2 Sensor 1 C L-GN 3212 HO2S Heater Low Control - Bank 2 Sensor 1 D PK 1539 Ignition 1 Voltage
Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 Connector Part Information 15326423 4-Way M Metri-Pack 150 Series Sealed (GY) Pin Wire Color Circuit No. Function A TN 1671 HO2S Low Signal - Bank 2 Sensor 2 B PU 1670 HO2S High Signal - Bank 2 Sensor 2 C RD/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2 D PK 539 Ignition 1 Voltage
Ignition Coil 1 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C PU 2121 IC 1 Control D PK 39 Ignition 1 Voltage
Ignition Coil 2 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C RD 2127 IC 2 Control D PK 39 Ignition 1 Voltage
Ignition Coil 3 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C L-BU 2123 IC 3 Control D PK 39 Ignition 1 Voltage
Ignition Coil 4 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C D-GN 2125 IC 4 Control D PK 39 Ignition 1 Voltage
Ignition Coil 5 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C D-GN 2125 IC 5 Control D PK 39 Ignition 1 Voltage
Ignition Coil 6 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C L-BU 2123 IC 6 Control D PK 39 Ignition 1 Voltage
Ignition Coil 7 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C RD 2127 IC 7 Control D PK 39 Ignition 1 Voltage
Ignition Coil 8 Connector Part Information 15439568 4-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A BK 151 Ground B BN 2129 Low Reference C PU 2121 IC 8 Control D PK 39 Ignition 1 Voltage
Knock Sensor (KS) 1 - Left Connector Part Information 15374222 2-Way F GT 150 Series Sealed (NA) Pin Wire Color Circuit No. Function A D-BU 496 Knock Sensor 1 Signal B GY 1716 Low Reference
Knock Sensor (KS) 2 - Right Connector Part Information 15374222 2-Way F GT 150 Series Sealed (NA) Pin Wire Color Circuit No. Function A L-BU 1876 Knock Sensor 2 Signal B GY 2303 Low Reference
Manifold Absolute Pressure (MAP) Sensor Connector Part Information 12129946 3-Way F Metri-Pack 150 Series Sealed (GY) Pin Wire Color Circuit No. Function A OG/BK 469 Low Reference B L-GN 432 MAP Sensor Signal C GY 2704 5-Volt Reference
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector Part Information 15305555 5-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BK 2760 Low Reference B TN 472 IAT Sensor Signal C BK 450 Ground D PK 239 Ignition 1 Voltage E YE 492 MAF Sensor Signal
Throttle Body Connector Part Information 15355297 6-Way F GT 150 Series Sealed 4.0 (BK) Pin Wire Color Circuit No. Function A BN 582 TAC Motor Control - 2 B YE 581 TAC Motor Control - 1 C BK/WH 1704 Low Reference D D-GN 485 TP Sensor 1 Signal E L-BU/BK 1688 5-Volt Reference F PU 486 TP Sensor 2 Signal
Valve Lifter Oil Manifold (VLOM) Assembly (DOD) Connector Part Information 12186057 5-Way F Metri-Pack 150.2 Pull to Seat Series Sealed (BK) Pin Wire Color Circuit No. Function A OG 5494 Cylinder Shutoff Solenoid Control 4 B GY 5493 Cylinder Shutoff Solenoid Control 3 C D-BU 5491 Cylinder Shutoff Solenoid Control 1 D L-GN 5492 Cylinder Shutoff Solenoid Control 2 E PK 239 Ignition 1 Voltage