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Engine Controls - 6.0L - Alternative Fuels (Introduction): Wiring Chevrolet Silverado 3500

Testing & Diagnostics 2 illustrations ~2862 words

Powertrain Control Module (PCM) Connector End Views

Powertrain Control Module (PCM) - C1 Connector Part Information 80-Way F Micro-Pack 100W Sealed Assembly - 12191489 Does not include the following: TPA (BU) 12176408 Terminal - 12084912 Pin Wire Color Circuit No. Function 1 BK/WH 451 Ground 2 L-GN 1867 12-Volt Reference 3 PK/BK 1746 Fuel Injector 3 Control 4 L-GN/BK 1745 Fuel Injector 2 Control 5-6 - - Not Used 7 GY 2705 5-Volt Reference 8-10 - - Not Used 11 L-BU 1876 Knock Sensor 2 Signal 12 D-BU/WH 1869 CKP Sensor Signal 13 - - Not Used 14 OR/BK 1061 UART Serial Data 15 D-BU/WH 774 UART Serial Data 16 - - Not Used 17 D-BU 1225 Transmission Fluid Pressure Switch Signal B 18 RD 1226 Transmission Fluid Pressure Switch Signal C 19 PK 439 Ignition 1 Voltage 20 OR 440 Battery Positive Voltage 21 YE/BK 1868 Low Reference 22 - - Not Used 23 BK 470 Low Reference 24 BK/WH 451 Ground 25 TN 1671 HO2S Low Signal - Bank 2 Sensor 2 26 TN 1667 HO2S Low Signal - Bank 2 Sensor 1 27 BK/WH 451 Ground 28 TN/WH 1669 HO2S Low Signal - Bank 1 Sensor 2 29 TN 1664 HO2S Low Signal - Bank 1 Sensor 1 30 L-GN 1478 Coolant Level Switch Signal 31 - - Not Used 32 BK/WH 771 Transmission Range Switch Signal A 33 PU 420 TCC Brake Switch/Cruise Control Release Signal 34 WH 776 Transmission Range Switch Signal P 35 - - Not Used 36 BK 1744 Fuel Injector 1 Control 37 YE/BK 846 Fuel Injector 6 Control 38 RD 2531 Alternative Fuel Operation (AFO) Enable 39 YE/BK 625 Starter Enable Relay Control 40 BK/WH 451 Ground 41 - - Not Used 42 D-BU 313 Low Pressure Lock-Off (LPL) Control 43 RD/BK 877 Fuel Injector 7 Control 44 L-BU/BK 844 Fuel Injector 4 Control 45 GY 2700 5-Volt Reference 46 GY 474 5-Volt Reference 47 - - Not Used 48 GY 597 5-Volt Reference 49-50 - - Not Used 51 D-BU 496 Knock Sensor 1 Signal 52 - - Not Used 53 GY 720 Low Reference 54 OR/BK 469 Low Reference 55 - - Not Used 56 WH 790 Fuel Injection Control Module Status 57 OR 440 Battery Positive Voltage 58 D-GN 1049 Class 2 Serial Data 59 YE 710 Class 2 Serial Data 60 - - Not Used 61 PK/BK 632 Low Reference 62 - - Not Used 63 BK 2755 Low Reference 64 BK/WH 451 Ground 65 PU 1670 HO2S High Signal - Bank 2 Sensor 2 66 PU 1666 HO2S High Signal - Bank 2 Sensor 1 67 BK/WH 451 Ground 68 PU/WH 1668 HO2S High Signal - Bank 1 Sensor 2 69 PU/WH 1665 HO2S High Signal - Bank 1 Sensor 1 70 BN 1174 Oil Level Switch Signal 71 PU/WH 455 Fuel Gage Select Signal 72 YE 772 Transmission Range Switch Signal B 73 BN/WH 633 CMP Sensor Signal 74 YE 410 ECT Sensor Signal 75 PK 1020 Off/Run/Crank Voltage 76 BK/WH 845 Fuel Injector 5 Control 77 D-BU/WH 878 Fuel Injector 8 Control 78-79 - - Not Used 80 BK 407 Low Reference

Powertrain Control Module (PCM) - C2 Connector Part Information 80-Way F Micro-Pack 100W Sealed Assembly - 12191488 Does not include the following: TPA (GN) - 15358857 Terminal - 12084912 Pin Wire Color Circuit No. Function 1 BK/WH 451 Ground 2 BN 418 TCC PWM Solenoid Valve Control 3-5 - - Not Used 6 RD/BK 1228 PC Solenoid Valve High Control (Sol A) 7 - - Not Used 8 L-BU/WH 1229 PC Solenoid Valve Low Control (Sol A) 9 D-GN/WH 465 Fuel Pump Relay Control - Primary 10 WH 121 Engine Speed Signal 11-13 - - Not Used 14 RD/BK 380 A/C Refrigerant Pressure Sensor Signal 15 BR 25 Charge Indicator Control 16 GY/BK 1694 4WD Low Signal 17-18 - - Not Used 19 BK/WH 1695 Axle Switch Signal 20 L-GN/BK 822 VSS Low Signal 21 PU/WH 821 VSS High Signal 22 RD/BK 1230 AT ISS High Signal 23 D-BU/WH 1231 AT ISS Low Signal 24 D-BU 2670 Fuel Rail Pressure PWM Signal 25 TN 472 IAT Sensor Signal 26 PU 2121 IC 1 Control 27 RD 2127 IC 7 Control 28 L-BU/WH 2126 IC 6 Control 29 D-GN/WH 2124 IC 4 Control 30 PK/BK 462 Fuel Injector Control Module Status 31 YE 492 MAF Sensor Signal 32 L-GN 432 MAP Sensor Signal 33 L-BU/BK 1580 High Pressure Lock-Off (HPL) Control 34 D-GN/WH 428 EVAP Canister Purge Solenoid Control 35-38 - - Not Used 39 RD 631 12-Volt Reference 40 BK/WH 451 Ground 41-42 - - Not Used 43 D-GN/WH 459 A/C Compressor Clutch Relay Control 44 - - Not Used 45 WH 1310 EVAP Canister Vent Solenoid Control 46 BN/WH 419 MIL Control 47 YE/BK 1223 (2-3 Shift Solenoid or Shift Solenoid B) Valve Control 48 L-GN 1222 (1-2 Shift Solenoid or Shift Solenoid A) Valve Control 49 YE/BK 1827 Vehicle Speed Signal 50 D-GN/WH 817 Vehicle Speed Signal 51 YE/BK 1227 TFT Sensor Signal 52 BN 2391 HO2S Heater Low Control - Bank 1 Sensor 2 53 RD/WH 3223 HO2S Heater Low Control - Bank 2 Sensor 2 54 PU 1589 Fuel Level Sensor Signal - Primary 55- 56 - - Not Used 57 BK 552 Low Reference 58 TN/WH 332 Oil Pressure Sensor Signal 59 PU 806 Crank Voltage 60 BN 2129 Low Reference 61 BN/WH 2130 Low Reference 62 GY 773 Transmission Range Switch Signal C 63 PK 1224 Transmission Fluid Pressure Switch Signal A 64 D-GN 890 Fuel Tank Pressure Sensor Signal 65 - - Not Used 66 PU/WH 2128 IC 8 Control 67 RD/WH 2122 IC 2 Control 68 D-GN 2125 IC 5 Control 69 L-BU 2123 IC 3 Control 70-71 - - Not Used 72 BK/WH 3113 HO2S Heater Low Control - Bank 1 Sensor 1 73 - - Not Used 74 L-GN 3212 HO2S Heater Low Control - Bank 2 Sensor 1 75 GY 23 Generator Field Duty Cycle Signal 76-79 - - Not Used 80 BK 2751 Low Reference

Fuel Injection Control Module Connector End Views

Natural 32 Pin Connector End Connector (Natural) Part Information Connector - 12129025 Terminal - 12084912 Seal - 12129026 TPA (BK) - 12129021 1 D-BU/WH 878 AF Fuel Injector 8 Control 2 L-GN/BK 1745 AF Fuel Injector 2 Control 3 YE/BK 846 AF Fuel Injector 6 Control 4 D-BU/BK 844 AF Fuel Injector 4 Control 5 BK 350 Ground 6 PK/BK 462 Fuel Injector Control Module (FICM) Status 7 PK 2739 Even Bank Injector Monitor 8 PK 2539 Odd Bank Injector Monitor 9 D-BU 1578 Alternative Fuel Tank Temperature Sensor Signal 10 TN 474 5-Volt Reference 11 WH 790 Fuel Injection Control Module PWM Output 12 BK 350 Ground 13 BK 1744 AF Fuel Injector 1 Control 14 BK/WH 877 AF Fuel Injector 7 Control 15 BK/WH 845 AF Fuel Injector 5 Control 16 PK/BK 1746 Fuel Injector 3 Control 17 D-BU/WH 878 Fuel Injector 8 Signal 18 L-GN/BK 1745 Fuel Injector 2 Signal 19 YE/BK 846 Fuel Injector 6 Signal 20 D-BU/BK 844 Fuel Injector 4 Signal 21 BK 350 Ground 22 RD 2531 Alternative Fuels Operation (AFO) Enable 23 OR 440 Battery Positive Voltage 24 PK 1020 Ignition 0 Voltage 25 D-GN/WH 890 Alternative Fuel Tank Pressure Sensor Signal 26 YE 1578 Alternative Fuel Rail Temperature Sensor Signal 27 GY 470 Low Reference 28 BK 350 Ground 29 BK 1744 Fuel Injector 1 Signal 30 RD/BK 877 Fuel Injector 7 Signal 31 BK/WH 845 Fuel Injector 5 Signal 32 PK/BK 1746 Fuel Injector 3 Signal

Engine Controls Connector End Views

C002 Connector Part Information 15326847 10-Way M GT 150 Sealed (BK) Connector Part Information 15326842 10-Way F GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A D-GN/WH 890 FTP Signal A D-GN/WH 890 FTP Signal B D-BU 1578 FTT Signal B D-BU 1578 FTT Signal C GY 470 Low Reference C - GY 470 Low Reference D TN 474 5-Volt Reference D TN 474 5-Volt Reference E PK/BK 462 FICM Status E PK/BK 462 FICM Status F OR 440 Battery Positive Voltage F OR 440 Battery Positive Voltage G WH 790 PWM Signal G WH 790 PWM Signal H PK 1020 Ignition 0 Voltage H PK 1020 Ignition 0 Voltage J RD 2531 AFO Enable J RD 2531 AFO Enable K PK 439 Ignition 1 Voltage K PK 439 Ignition 1 Voltage

Scheme 477

Scheme 477: Engine Controls Connector End Views

C003 Connector Part Information 12040977 3-Way F Metri-pack 280 Series (BK) Connector Part Information 12103075 3-Way M Metri-pack 280 Series (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A BK 451 Ground A BK 451 Ground B BK 350 Ground B BK 350 Ground C - - Not Used C - - Not Used

C004 Connector Part Information 15326840 8-Way M GT 150 Sealed (BK) Connector Part Information 15326835 8-Way F GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A BK 1744 Fuel Injector 1 PCM Signal A BK 1744 Fuel Injector 1 PCM Signal B PK/BK 1746 Fuel Injector 3 PCM Signal B PK/BK 1746 Fuel Injector 3 PCM Signal C BK/WH 845 Fuel Injector 5 PCM Signal C BK/WH 845 Fuel Injector 5 PCM Signal D RD/BK 877 Fuel Injector 7 PCM Signal D RD/BK 877 Fuel Injector 7 PCM Signal E L-GN/BK 1745 Fuel Injector 2 PCM Signal E L-GN/BK 1745 Fuel Injector 2 PCM Signal F L-BU/BK 844 Fuel Injector 4 PCM Signal F L-BU/BK 844 Fuel Injector 4 PCM Signal G YE/BK 846 Fuel Injector 6 PCM Signal G YE/BK 846 Fuel Injector 6 PCM Signal H D-BU/WH 878 Fuel Injector 8 PCM Signal H D-BU/WH 878 Fuel Injector 8 PCM Signal

C005 Connector Part Information 15326835 8-Way F GT 150 Sealed (BK) Connector Part Information 15326840 8-Way M GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A BK 1744 Gasoline Fuel Injector 1 Control A BK 1744 Gasoline Fuel Injector 1 Control B PK/BK 1746 Gasoline Fuel Injector 3 Control B PK/BK 1746 Gasoline Fuel Injector 3 Control C BK/WH 845 Gasoline Fuel Injector 5 Control C BK/WH 845 Gasoline Fuel Injector 5 Control D RD/BK 877 Gasoline Fuel Injector 7 Control D RD/BK 877 Gasoline Fuel Injector 7 Control E L-GN/BK 1745 Gasoline Fuel Injector 2 Control E L-GN/BK 1745 Gasoline Fuel Injector 2 Control F L-BU/BK 844 Gasoline Fuel Injector 4 Control F L-BU/BK 844 Gasoline Fuel Injector 4 Control G YE/BK 846 Gasoline Fuel Injector 6 Control G YE/BK 846 Gasoline Fuel Injector 6 Control H D-BU/WH 878 Gasoline Fuel Injector 8 Control H D-BU/WH 878 Gasoline Fuel Injector 8 Control

C006 Connector Part Information 15326830 6-Way F GT 150 Sealed (BK) Connector Part Information 15326833 6-Way M GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A PK 1039 Injector 1/3 Ignition Voltage A PK 1039 Injector 1/3 Ignition Voltage B BK 1744 Gasoline Fuel Injector 1 Control B BK 1744 Gasoline Fuel Injector 1 Control C PK/BK 1746 Gasoline Fuel Injector 3 Control C PK/BK 1746 Gasoline Fuel Injector 3 Control D BK/WH 845 Gasoline Fuel Injector 5 Control D BK/WH 845 Gasoline Fuel Injector 5 Control E RD/BK 877 Gasoline Fuel Injector 7 Control E RD/BK 877 Gasoline Fuel Injector 7 Control F PK 1039 Injectors 5/7 Ignition Voltage F PK 1039 Injectors 5/7 Ignition Voltage

C007 Connector Part Information 15326830 6-Way F GT 150 Sealed (BK) Connector Part Information 15326833 6-Way M GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A PK 1239 Injectors 2/4 Ignition Voltage A PK 1239 Injectors 2/4 Ignition Voltage B L-GN/BK 1745 Gasoline Fuel Injector 2 Control B L-GN/BK 1745 Gasoline Fuel Injector 2 Control C L-BU/BK 844 Gasoline Fuel Injector 4 Control C L-BU/BK 844 Gasoline Fuel Injector 4 Control D YE/BK 846 Gasoline Fuel Injector 6 Control D YE/BK 846 Gasoline Fuel Injector 6 Control E D-BU/WH 878 Gasoline Fuel Injector 8 Control E D-BU/WH 878 Gasoline Fuel Injector 8 Control F PK 1239 Injectors 6/8 Ignition Voltage F PK 1239 Injectors 6/8 Ignition Voltage

C008 Connector Part Information 15326835 8-Way F GT 150 Sealed (BK) Connector Part Information 15326840 8-Way M GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A D-GN 890 FTP Signal A D-GN 890 FTP Signal B PK 1580 HPL Solenoid Control B PK 1580 HPL Solenoid Control C YE 1578 FTT Signal C YE 1578 FTT Signal D - - Not Used D - - Not Used E GY 120 LPL Solenoid Ignition Voltage E GY 120 LPL Solenoid Ignition Voltage F BK 470 Low Reference F BK 470 Low Reference G GY 474 5-Volt Reference G GY 474 5-Volt Reference H - - Not Used H - - Not Used

C009 Connector Part Information 15326835 8-Way F GT 150 Sealed (BK) Connector Part Information 15326840 8-Way M GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A D-GN 890 FTP Signal A D-GN 890 FTP Signal B PK 1580 HPL Solenoid Control B PK 1580 HPL Solenoid Control C YE 1578 FTT Signal C YE 1578 FTT Signal D - - Not Used D - - Not Used E GY 120 HPL Solenoid Ignition Voltage E GY 120 HPL Solenoid Ignition Voltage F BK 470 Low Reference F BK 470 Low Reference G GY 474 5-Volt Reference G GY 474 5-Volt Reference H - - Not Used H - - Not Used

C010 Connector Part Information 15326801 2-Way F GT 150 Sealed (BK) Connector Part Information 15326806 2-Way M GT 150 Sealed (BK) Pin Wire Color Circuit No. Function Pin Wire Color Circuit No. Function A - - Not Used A - - Not Used B PU/WH 455 Fuel Gage Select Switch Signal B PU/WH 455 Fuel Gage Select Switch Signal

Scheme 478

Scheme 478

Fuel Rail Temperature Sensor Connector Part Information 12162194 2-Way F Metri-Pack 150.2 Series, P2S (BK) Pin Wire Color Circuit No. Function A GY 470 Low Reference B YE 1578 Sensor Signal

Fuel Rail Pressure Sensor Connector Part Information 12078090 3-Way F Metri-Pack Sealed 150 Series (BK) Pin Wire Color Circuit No. Function A BK 470 Low Reference B GY 4741 5-Volt Reference C D-BU 2670 Sensor Signal

AF Fuel Injector #1 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2539 Injector Power B BK 1744 Injector Control

AF Fuel Injector #3 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2539 Injector Power B PK/BK 1746 Injector Control

AF Fuel Injector #5 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2539 Injector Power B BK/WH 845 Injector Control

AF Fuel Injector #7 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2539 Injector Power B BK/WH 877 Injector Control

AF Fuel Injector #2 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2739 Injector Power B L-GN/BK 1745 Injector Control

AF Fuel Injector #4 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2739 Injector Power B L-BU 844 Injector Control

AF Fuel Injector #6 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2739 Injector Power B YE/BK 846 Injector Control

AF Fuel Injector #8 Connector Part Information 61890553 2-Way F Sumitomo (BK) Pin Wire Color Circuit No. Function A PK 2739 Injector Power B D-BU/WH 878 Injector Control

AF Lock-Off Relay Connector Part Information 12129716 4-Way F Sealed Flexlock 280 Series (M-GY) Pin Wire Color Circuit No. Function 30 OR 2640 Battery Power 85 PK 439 Ignition Power 86 BK 2150 Ground 87 GY 120 Lock-Off Power 87A - - Not Used

Low Pressure Lock-Off Solenoid Connector Part Information 12052641 2-Way F Metri-Pack Sealed 150 Series (BK) Pin Wire Color Circuit No. Function A GY 120 Solenoid Power B - D-BU 313 Solenoid Control

High Pressure Lock-Off Solenoid Connector Part Information 12052641 2-Way F Metri-Pack Sealed 150 Series (BK) Pin Wire Color Circuit No. Function A GY 120 Solenoid Power B PK 1580 Solenoid Control

Fuel Tank Temperature Connector Part Information 12052644 2-Way F Metri-Pack Sealed 150 Series (L-GY) Pin Wire Color Circuit No. Function A BK 470 Low Reference B YE 1578 Sensor Signal

AF Fuel Tank Pressure Connector Part Information 12078090 3-Way F Metri-Pack Sealed 150 Series (BK) Pin Wire Color Circuit No. Function A BK 470 Low Reference B GY 474 5-Volt Reference C D-GN 890 Sensor Signal

Fuel Gage Select Switch Connector Part Information 12129716 5-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BN/WH 230 Illumination Power B - - Not Used C BK 1050 Ground D PU/WH 455 Switch Signal E - - Not Used