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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 729 (ENGINE CONTROLS (INTRODUCTION) -- 5.7L)COMPONENT LOCATORENGINE CONTROLS CONNECTOR END VIEWS
1999 GMC Forward Control 5.7 R, Automatic

Engine Controls Connector End Views

1999 GMC Forward Control 5.7 R, AutomaticSECTION Engine Controls Connector End Views
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Accelerator Pedal Position Terminal Identification (APP) Sensor

GM366097Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15318071
  • 10-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
A GRY 1273 Low Reference
B PPL 1272 Low Reference
C LT BLU 1162 APP Sensor 2 Signal
D TAN 1274 5-Volt Reference
E YEL/BLK 1275 5-Volt Reference
F DK BLU 1161 APP Sensor 1 Signal
G LT BLU 1276 5-Volt Reference
H - - Not Used
J BRN 1271 Low Reference
K DK GRN 1163 APP Sensor 3 Signal
Camshaft Position Terminal Identification (CMP) Sensor

GM684807Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12186687
  • 3-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BRN/WHT 633 CMP Sensor Signal
B PNK/BLK 632 Low Reference
C RED 631 12-Volt Reference
Crankshaft Position Terminal Identification (CKP) Sensor

GM684807Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12186687
  • 3-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A DK BLU/WHT 1869 CKP Sensor Signal
B YEL/BLK 1868 Low Reference
C LT GRN 1867 12-Volt Reference
Engine Coolant Temperature Terminal Identification (ECT) Sensor

GM655692Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162192
  • 2-Way F Metri-Pack 150.2 Series (BLK)
Pin Wire Color Circuit No. Function
A BRN 718 Low Reference
B YEL 410 ECT Sensor Signal
Evaporative Emission (EVAP) Canister Purge Solenoid Terminal Identification

GM684795Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12052637
  • 2-Way F Metri-Pack 150 Series (RED)
Pin Wire Color Circuit No. Function
A PNK 339 Ignition (Hot W/IGN Relay Energized)
B DK GRN/WHT 428 EVAP Canister Purge Solenoid Control
Evaporative Emission (EVAP) Canister Vent Solenoid Terminal Identification

GM684795Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12052637
  • 2-Way F Metri-Pack 150 Series (RED)
Pin Wire Color Circuit No. Function
A PNK 339 Battery Positive Feed
B WHT 1310 EVAP Canister Vent Solenoid Control
Fuel Injector Terminal Identification 1

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 639 Ignition 1 Voltage
B BLK 1744 Fuel Injector #1 Control
Fuel Injector Terminal Identification 2

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 839 Ignition 1 Voltage
B LT GRN/BLK 1745 Fuel Injector #2 Control
Fuel Injector Terminal Identification 3

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 639 Ignition 1 Voltage
B PNK/BLK 1746 Fuel Injector #3 Control
Fuel Injector Terminal Identification 4

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 839 Ignition 1 Voltage
B LT BLU/BLK 844 Fuel Injector #4 Control
Fuel Injector Terminal Identification 5

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 639 Ignition 1 Voltage
B BLK/WHT 845 Fuel Injector #5 Control
Fuel Injector Terminal Identification 6

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 839 Ignition 1 Voltage
B YEL/BLK 846 Fuel Injector #6 Control
Fuel Injector Terminal Identification 7

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 639 Ignition 1 Voltage
B RED/BLK 877 Fuel Injector #7 Control
Fuel Injector Terminal Identification 8

GM684804Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129140
  • 2-Way F Metri-Pack 280.1 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 839 Ignition 1 Voltage
B DK BLU/WHT 878 Fuel Injector #8 Control
Fuel Pump And Sender Assembly Terminal Identification

GM697003Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15324862
  • 4-Way F Metri-Pack 150.2 Series (BLK)
Pin Wire Color Circuit No. Function
1 DK BLU 1936 Fuel Level Sensor Signal - Secondary
2 GRY 120 Fuel Pump Supply Voltage
3 BLK 9531 Ground
4 BLK 808 Low Reference
Fuel Tank Pressure Terminal Identification (FTP) Sensor

GM516611Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12059595
  • 3-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 808 Low Reference
B DK GRN 890 Fuel Tank Pressure Sensor Signal
C BRN/ LT GRN 2709 5-Volt Reference Voltage
Heated Oxygen Sensor Terminal Identification (HO2S) Bank 1 Sensor 1

GM474210Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12176897
  • 4-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
A TAN/WHT 1653 HO2S Low Signal Bank 1 Sensor 1
B PPL/WHT 1665 HO2S High Signal Bank 1 Sensor 1
C BLK/WHT 3113 HO2S Heater Low Control
D BRN 241 Ignition 3 Voltage
Heated Oxygen Sensor Terminal Identification (HO2S) Bank 1 Sensor 2

GM806613Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326423
  • 4-Way M Metri-Pack 150 Series (BLK)
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 BRN 2391 HO2S Heater Low Control
D BRN 241 Ignition 3 Voltage
Heated Oxygen Sensor Terminal Identification (HO2S) Bank 2 Sensor 1

GM474210Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12176897
  • 4-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
A TAN 1667 HO2S Low Signal Bank 2 Sensor 1
B PPL 1666 HO2S High Signal Bank 2 Sensor 1
C LT GRN 3212 HO2S Heater Low Control
D BRN 241 Ignition 3 Voltage
Heated Oxygen Sensor Terminal Identification (HO2S) Bank 2 Sensor 2

GM806613Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15326423
  • 4-Way M Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A TAN 1671 HO2S Low Signal Bank 2 Sensor 2
B PPL 1670 HO2S High Signal Bank 2 Sensor 2
C RED/WHT 3223 HO2S Heater Low Control
D BRN 241 Ignition 3 Voltage
Ignition Coil/Module Terminal Identification 1

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C PPL 2121 IC 1 Control
D PNK 39 Ignition 1 Voltage
Ignition Coil/Module Terminal Identification 2

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C RED 2127 IC 2 Control
D PNK 39 Ignition 1 Voltage
Ignition Coil/Module Terminal Identification 3

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C LT BLU 2123 IC 3 Control
D PNK 39 Ignition 1 Voltage
Ignition Coil/Module Terminal Identification 4

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C DK GRN 2125 IC 4 Control
D PNK 39 Ignition 1 Voltage
Ignition Coil/Module Terminal Identification 5

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C DK GRN 2125 IC 5 Control
D PNK 39 Ignition 1 Voltage
Ignition Coil/Module Terminal Identification 6

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C LT BLU 2123 IC 6 Control
D PNK 39 Ignition 1 Voltage
Ignition Coil/Module Terminal Identification 7

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C RED 2127 IC 7 Control
D PNK 39 Ignition 1 Voltage
Ignition Coil/Module Terminal Identification 8

GM684854Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162144
  • 4-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BLK 151 Ground
B BRN 2129 Low Reference
C PPL 2121 IC 8 Control
D PNK 39 Ignition 1 Voltage
Knock Sensor Terminal Identification (KS) 1

GM95764Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12176800
  • 1-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
1 DK BLU 496 KS 1 Signal
Knock Sensor Terminal Identification (KS) 2

GM95764Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12176800
  • 1-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
1 LT BLU 1876 KS 2 Signal
Manifold Absolute Pressure Terminal Identification (MAP) Sensor

GM684840Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129945
  • 3-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
A ORN/BLK 469 Low Reference
B LT GRN 432 MAP Sensor Signal
C GRY 416 5-Volt Reference
Mass Air Flow Terminal Identification (MAF) Sensor

GM366067Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15305555
  • 5-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A PPL 719 Low Reference
B TAN 472 IAT Sensor Signal
C BLK/WHT 451 Ground
D PNK 339 Ignition 1 Voltage
E YEL 492 Mass Air Flow (MAF) Sensor - Signal
Park/Neutral Position (PNP) Switch Terminal Identification - C1

GM68780Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12129839
  • 7-Way F Metri-Pack Mixed Series (GRY)
Pin Wire Color Circuit No. Function
A - - Not Used
B ORN/BLK 434 Neutral Safety Switch Signal
C BRN 341 Ignition 3 Voltage
D BLK/WHT 851 Ground
E PPL 1606 Crank Voltage
F GRY 1524 Back Up Lamp Supply Voltage
G YEL 269 Starter Enable Relay Coil Supply Voltage
Park/Neutral Position (PNP) Switch Terminal Identification - C2

GM535904Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191750
  • 4-Way F Metri-Pack 150 Series (NAT)
Pin Wire Color Circuit No. Function
A BLK/WHT 771 Transmission Range Switch Signal A
B GRY 773 Transmission Range Switch Signal C
C WHT 776 Transmission Range Switch Signal P
D YEL 772 Transmission Range Switch Signal B
Secondary Air Injection (AIR) Pump Terminal Identification

GM365990Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191968
  • 2-Way F Metri-Pack 150 Series (GRY)
Pin Wire Color Circuit No. Function
A RED 78 AIR Pump Supply Voltage
B BLK 150 Ground
Secondary Air Injection (AIR) Solenoid Terminal Identification

GM684793Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12052635
  • 2-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A PNK 339 Ignition 1 Voltage
B PPL 421 Air Solenoid Control
Throttle Actuator Control (TAC) Module Terminal Identification C1

GM212072Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12186688
  • 10-Way F Micro-Pack 100 Series (BLK)
Pin Wire Color Circuit No. Function
A GRY 1273 Low Reference
B PPL 1272 Low Reference
C LT BLU 1162 APP Sensor 2 Signal
D TAN 1274 5-Volt Reference
E YEL/BLK 1275 5-Volt Reference
F DK BLU 1161 APP Sensor 1 Signal
G LT BLU 1276 5-Volt Reference
H - - Not Used
J BRN 1271 Low Reference
K DK GRN 1163 APP Sensor 3 Signal
Throttle Actuator Control (TAC) Module Terminal Identification C2

GM261930Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12191065
  • 16-Way F Micro-Pack 100 Series (MD GRY)
Pin Wire Color Circuit No. Function
1 DK BLU 417 TP Sensor 1 Signal
2 DK GRN 485 5-Volt Reference
3 PPL 486 Low Reference
4 DK BLU 84 Cruise Control Set/Coast Switch Signal
5 GRY/BLK 87 Cruise Control Resume/Accel Switch Signal
6 LT BLU 20 Stop Lamp Supply Voltage
7 PNK 539 Ignition 1 Voltage
8 BRN 582 TAC Motor Control - 2
9 YEL/BLK 487 5-Volt Reference
10 WHT 484 Low Reference
11 PNK 427 TP Sensor 2 Signal
12 TAN 800 UART Serial Data Primary
13 ORN/BLK 1061 UART Serial Data Secondary
14 GRY 397 Cruise Control On Signal
15 BLK/WHT 451 Ground
16 YEL 581 TAC Motor Control - 1
Throttle Actuator Control (TAC) Motor Terminal Identification

GM684799Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12077901
  • 2-Way F Metri-Pack 280 Series (BLK)
Pin Wire Color Circuit No. Function
A YEL 581 TAC Motor Control - 1
B BRN 582 TAC Motor Control - 2
Throttle Position Terminal Identification (TP) Sensor

GM40442Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12162209
  • 6-Way F Metri-Pack 150.2 Series (BLK)
Pin Wire Color Circuit No. Function
A DK GRN 485 5-Volt Reference
B PPL 486 Low Reference
C DK BLU 417 TP Sensor 1 Signal
D YEL/BLK 487 5-Volt Reference
E WHT 484 Low Reference
F PNK 427 TP Sensor 2 Signal
RENDER: 1.0x

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