Engine Control Module (ECM) Connector End Views
ECM C1 Connector Part Information 15452125 56-Way F Micro 64 Sealed (BU) Pin Wire Color Circuit No. Function 1 PU 1589 Fuel Level Sensor Signal 2 L-BU 1162 APP Sensor 2 Signal 3 D-GN 890 Fuel Tank Pressure Sensor Signal 4 D-BU 1161 APP Sensor 1 Signal 5 - - Not Used 6 D-GN 1433 PNP/Clutch Start Switch Signal 7 - - Not Used 8 BN/WH 379 CPP Switch Signal 9 PU 420 TCC Brake Switch/Cruise Control Release Signal 10 WH/BK 1164 5-Volt Reference 11 L-BU 20 Stop Lamp Switch Signal 12 BN 4 Accessory Voltage 13 GY 705 5-Volt Reference 14 D-GN/WH 465 Fuel Pump Relay Control 15 D-BU 1884 Cruise Control Switch Signal 16 PU 1807 Class 2 Serial Data 17 PU 1807 Class 2 Serial Data (ABS) 18 BN 5069 Main Relay Control 19-26 - - Not Used 27 YE 1139 Ignition 1 Voltage 28-29 - - Not Used 30 WH 1310 EVAP Canister Vent Solenoid Control 31 D-GN/WH 459 A/C Compressor Clutch Relay Control 32-40 - - Not Used 41 PU 1272 Low Reference 42-44 - - Not Used 45 BN/WH 419 MIL Control 46 YE 447 Starter Relay Coil Control 47-50 - - Not Used 51 OG 480 Battery Positive Voltage 52 - - Not Used 53 BN 1271 Low Reference 54 BK 2759 Low Reference 55 - - Not Used 56 TN 1274 5-Volt Reference
ECM C2 Connector Part Information 15471389 (MN5) 15471385 (M86) 73-Way F GT 280 Micro 64 Sealed (BK) Pin Wire Color Circuit No. Function 1-2 - - Not Available 3 YE 581 TAC Motor Control - 1 4 - - Not Available 5 BN 582 TAC Motor Control - 2 6-9 - - Not Available 10 BK 1744 Fuel Injector 1 Control 11 PK/BK 1746 Fuel Injector 3 Control 12 L-BU/BK 844 Fuel Injector 4 Control 13 L-GN/BK 1745 Fuel Injector 2 Control 14 - - Not Available 15 D-GN/WH 428 EVAP Canister Purge Solenoid Control 16 - - Not Available 17 BK/WH 1423 HO2S Heater Low Control - 1 18 YE 400 Signal High - Front/VSS High Signal/OSS High Signal (M/T) - - Not Available (A/T) 19 PU 401 Signal Low - Front VSS Low Signal/OSS Low Signal (M/T) - - Not Available (A/T) 20-23 - - Not Available 24 GY 2701 5-Volt Reference 25 GY 2704 5-Volt Reference 26 L-BU/BK 1688 5-Volt Reference 27 - - Not Available 28 GY 2700 5-Volt Reference (C60) 29 BK/WH 1704 Low Reference 30 - - Not Available 31 BK 2752 Low Reference 32-33 - - Not Available 34 PK/BK 5290 Ignition 1 Voltage 35 - - Not Available 36 PU 486 TP Sensor 2 Signal 37 - - Not Available 38 BK 2760 Low Reference 39 - - Not Available 40 OG/BK 469 Low Reference 41 PU 1666 HO2S High Signal - 1 42 TN 1667 HO2S Low Signal - 1 43 PU/WH 1668 HO2S High Signal - 2 44 TN/WH 1669 HO2S Low Signal - 2 45-46 - - Not Availble 47 D-GN 335 Low Speed Cooling Fan Relay Control 48 TN/BK 231 Oil Pressure Switch Signal 49 RD/BK 380 A/C Refrigerant Pressure Sensor Signal (C60) 50 YE 410 ECT Sensor Signal 51 GY 23 Generator Field Duty Cycle Signal 52 YE 492 MAF Sensor Signal 53 D-GN 676 HO2S Heater Low Control - 1 54 WH 423 IC Timing Control 55 OG 406 IC Timing Control (B) 56-57 - - Not Available 58 D-GN 485 TP Sensor 1 Signal 59 BK 2751 Low Reference (C60) 60 - - Not Availble 61 BK 2761 Low Reference 62 L-GN 432 MAP Sensor Signal 63 RD 225 Generator Turn On Signal 64 TN/WH 2500 High Speed GMLAN Serial Data Bus + 65 TN 2501 High Speed GMLAN Serial Data Bus - 66 YE 573 CKP Sensor Signal 67 PU 574 Low Reference 68 TN 472 IAT Sensor Signal 69 - - Not Available 70 BN/WH 633 CMP Sensor Signal 71 GY 1716 Low Reference 72 D-BU 496 Knock Sensor Signal 73 BK/WH 451 Ground
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 TN 1274 5-Volt Reference B L-BU 1162 APP Sensor 2 Signal C PU 1272 Low Reference D BN 1271 Low Reference E D-BU 1161 APP Sensor 1 Signal F WH/BK 1164 5-Volt Reference
Crankshaft Position (CKP) Sensor Connector Part Information 15336024 2-Way F Metri-Pack 150 Series GT (BK) Pin Wire Color Circuit No. Function 1 PU 574 Low Reference 2 YE 573 CKP Sensor Signal
Engine Coolant Temperature (ECT) Sensor Connector Part Information 15336024 2-Way F Metri-Pack 150 Series GT (BK) Pin Wire Color Circuit No. Function 1 BK 2761 Low Reference 2 YE 410 ECT Sensor Signal
Evaporative Emission (EVAP) Canister Purge Solenoid Connector Part Information 12052643 2-Way F Metri-Pack 150 Series Sealed (RD) Pin Wire Color Circuit No. Function A PK/BK 5291 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 840 Battery Positive Voltage B WH 1310 EVAP Canister Vent Solenoid Control
Fuel Injector 1 Connector Part Information 15326181 2-Way F (BK) Pin Wire Color Circuit No. Function A PK 139 Ignition 1 Voltage B BK 1744 Fuel Injector 1 Control
Fuel Injector 2 Connector Part Information 15326181 2-Way F (BK) Pin Wire Color Circuit No. Function A PK 139 Ignition 1 Voltage B L-GN/BK 1745 Fuel Injector 2 Control
Fuel Injector 3 Connector Part Information 15326181 2-Way F (BK) Pin Wire Color Circuit No. Function A PK 139 Ignition 1 Voltage B PK/BK 1746 Fuel Injector 3 Control
Fuel Injector 4 Connector Part Information 15326181 2-Way F (BK) Pin Wire Color Circuit No. Function A PK 139 Ignition 1 Voltage B L-BU/BK 844 Fuel Injector 4 Control
Fuel Pump Connector Part Information 776127-2 2-Way F AMP (BK) Pin Wire Color Circuit No. Function 1 PK/BK 120 Fuel Pump Supply Voltage 2 BK 650 Ground
Fuel Tank Pressure (FTP) Sensor Connector Part Information 12059595 3-Way Metri-Pack 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A RD/PK 469 Low Reference B GY/RD 890 Fuel Tank Pressure Sensor Signal C BN/WH 416 5-Volt Reference
Heated Oxygen Sensor (HO2S) 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 Sensor 1 B PU 1666 HO2S High Signal Sensor 1 C D-GN 676 HO2S Heater Low Control Sensor 1 D PK/BK 5291 Ignition 1 Voltage
Heated Oxygen Sensor (HO2S) 2 Connector Part Information 12160825 4-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A TN/WH 1669 HO2S Low Signal Sensor 2 B PU/WH 1668 HO2S High Signal Sensor 2 C BK/WH 1423 HO2S Heater Low Control Sensor 2 D PK/BK 5291 Ignition 1 Voltage
Ignition Control Module (ICM) Connector Part Information 15464996 9-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A PK/BK 5292 Ignition 1 Voltage B WH 423 IC Timing Control C-D - - Not Used E BK/WH 451 Ground F BN/WH 633 CMP Sensor Signal G OG 406 IC Timing Control (B) H-J - - Not Used
Knock Sensor (KS) Connector Part Information 12077900 2-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A D-BU 496 Knock Sensor Signal B GY 1716 Low Reference
Manifold Absolute Pressure (MAP) Sensor Connector Part Information 12129946 3-Way F Metri-Pack 150 Series Sealed (M-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
MAF/IAT Sensor Connector Part Information 15326822 5-Way F GT 150 Series Sealed (BK) Pin Wire Color Circuit No. Function A YE 492 MAF Sensor Signal B BK/WH 451 Ground C PK/BK 5291 Ignition 1 Voltage D BK 2760 Low Reference E TN 472 IAT Sensor Signal
Stop Lamp Switch - Lower (K34) Connector Part Information 12041433 2-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A PK 339 Ignition 1 Voltage B PU 420 Stop Lamp Switch Signal
Stop Lamp Switch - Lower (w/o K34) Connector Part Information 12033706 4-Way F Metri-Pack 280 Series (BU) Pin Wire Color Circuit No. Function A PK 339 Ignition 1 Voltage B PU 420 Stop Lamp Switch Signal C-D - - Not Used
Throttle Body Connector Part Information 15326835 8-Way F GT 150 Sealed (BK) Pin Wire Color Circuit No. Function A D-GN 485 TP Sensor 1 Signal B BK/WH 1704 Low Reference C GY 2701 5-Volt Reference D PU 486 TP Sensor 2 Signal E BN 582 TAC Motor Control - 2 F YE 581 TAC Motor Control - 1 G BK 2752 Low Reference H L-BU/BK 1688 5-Volt Reference