GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Yukon - 2WD 🢒 Body and Accessories 🢒 Body Control System 🢒 Engine Controls Connector End Views
Table 1: Throttle Position (TP) Sensor (All Gas Except 4.3L)
Table 2: Throttle Actuator Control (TAC) Motor
Table 3: Throttle Position (TP) Sensor (Dual Track)
Table 4: Knock Sensor (All Gas Except 4.3L)
Table 5: Secondary Air Injection (AIR) Solenoid (Gas Engines)
Table 6: Secondary Air Injection Reaction (AIR) Pump Relay
Table 7: Secondary Air Injection Reaction (AIR) Pump
Table 8: Evaporative Emission (EVAP) Canister Vent Valve
Table 9: Fuel Tank Pressure Sensor
Table 10: Camshaft Position (CMP) Sensor (All Gas Except 4.3L)
Table 11: Evaporative Emission (EVAP) Canister Purge Valve
Table 12: Manifold Absolute Pressure (MAP) Sensor
Table 13: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Table 14: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Table 15: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Table 16: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Table 17: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (Canada Built)
Table 18: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (Canada Built)
Table 19: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (Canada Built)
Table 20: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (Canada Built)
Table 21: Fuel Pump/Level Sensor
Table 22: Idle Air Control (IAC) Valve
Table 23: Transmission Input Speed Sensor (4L80-E)
Table 24: Vehicle Speed Sensor (VSS)
Table 25: C-1 Four Wheel Drive Adaptor
Table 26: C-2 Four Wheel Drive Adaptor
Table 27: Front Propshaft Speed Sensor
Table 28: Rear Propshaft Speed Sensor
Table 29: Engine Coolant Temperature (ECT) Sensor
Table 30: Exhaust Gas Recirculation (EGR) Valve
Table 31: Mass Air Flow (MAF) Sensor
Table 32: C-1 Park/Neutral Position Switch
Table 33: C-2 Park/Neutral Position Switch
Table 34: Fuel Injector 1
Table 35: Fuel Injector 2
Table 36: Fuel Injector 3
Table 37: Fuel Injector 4
Table 38: Fuel Injector 5
Table 39: Fuel Injector 6
Table 40: Fuel Injector 7
Table 41: Fuel Injector 8
Table 42: Crankshaft Position (CKP) Sensor
Table 43: Automatic Transmission (4.8L, 5.3L)

Throttle Position (TP) Sensor (All Gas Except 4.3L)


Object Number: 258299 Size: CH

Connector Part Information
    • 12078090
    • 3 Way F Metri-Pack Series 150 Series Pull (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

Reference Voltage Feed (5 Volts)

B

BLK

452

Throttle Position (TP) Sensor Return

C

DK BLU

417

Throttle Position (TP) Sensor Signal

Throttle Actuator Control (TAC) Motor


Object Number: 35444 Size: CH

Connector Part Information
    • 12077900
    • 2 Way F Metri-Pack Series 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

582

Throttle Motor Feed - Close

B

YEL

581

Throttle Motor Feed - Open

Throttle Position (TP) Sensor (Dual Track)


Object Number: 73231 Size: CH

Connector Part Information
    • 12162261
    • 6 Way F Metri-Pack Series 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

Reference Voltage Feed (5 Volts)

B

BLK

452

Throttle Position (TP) Sensor # 1 Return

C

DK GRN

485

Throttle Position (TP) Sensor Signal # 1

D

LT BLK

1688

Dual Track Position Sensor Reference Voltage Feed - 5 Volt

E

BLK/WHT

1704

Throttle Position (TP) Sensor # 2 Return

F

PPL

486

Throttle Position (TP) Sensor Signal # 2

Knock Sensor (All Gas Except 4.3L)


Object Number: 35437 Size: CH

Connector Part Information
    • 12052641
    • 2 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

Knock Sensor Signal # 1

B

LT BLU

1876

Knock Sensor Signal # 2

Secondary Air Injection (AIR) Solenoid (Gas Engines)


Object Number: 35437 Size: CH

Connector Part Information
    • 12052641
    • 2 Way F Metric Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

78

Secondary AIR Solenoid Feed

B

BLK

550

Ground

Secondary Air Injection Reaction (AIR) Pump Relay


Object Number: 39670 Size: CH

Connector Part Information
    • 12129716
    • 4 Way F Metri-Pack 280 Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

30

RED

642

Fused Battery Positive Voltage

85

PNK

639

Fused Ignition Positive Voltage Output

86

BRN

436

Secondary Air Injection Reaction (AIR) Pump Relay Output (Coil)

87

RED

78

Secondary Air Injection Reaction (AIR) Pump Feed

Secondary Air Injection Reaction (AIR) Pump


Object Number: 365990 Size: CH

Connector Part Information
    • 12191968
    • 2 Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

RED

78

Air Injection Reaction Pump Motor Feed

B

BLK

550

Ground

Evaporative Emission (EVAP) Canister Vent Valve


Object Number: 35437 Size: CH

Connector Part Information
    • 12052643
    • 2 Way F Metri-Pack 150 Series (RED)

Pin

Wire Color

Circuit No.

Function

A

WHT

1310

EVAP Canister Vent Valve Output

B

PNK

239

Fused Ignition Positive Voltage

Fuel Tank Pressure Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Sensor Return

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

GRY

474

Reference Voltage Feed - 5 Volt

Camshaft Position (CMP) Sensor (All Gas Except 4.3L)


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN/WHT

633

Camshaft Position (CMP) Sensor Signal

B

PNK/BLK

632

Camshaft Position (CMP) Sensor Return

C

RED

631

Camshaft Sensor Feed - 12 Volt

Evaporative Emission (EVAP) Canister Purge Valve


Object Number: 35437 Size: CH

Connector Part Information
    • 12124037
    • 2 Way F Metri-Pack 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Fused Ignition Positive Voltage

B

DK GRN/WHT

428

Canister Purge Solenoid Output

Manifold Absolute Pressure (MAP) Sensor


Object Number: 68740 Size: CH

Connector Part Information
    • 12129946
    • 3 Way F Metri-Pack 150 Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

469

Manifold Absolute Pressure (MAP) Sensor Return

B

LT GRN

432

Manifold Absolute Pressure (MAP) Sensor Signal

C

GRY

597

Reference Voltage Feed (5 Volt)

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 258300 Size: CH

Connector Part Information
    • 12160482
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1653

Oxygen Sensor Return - Left - Forward

B

PPL/WHT

1665

Oxygen Sensor Signal - Left - Forward

C

BLK

550

Ground

D

PNK

539

Fused Ignition Positive Voltage

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 258300 Size: CH

Connector Part Information
    • 12160482
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1669

Oxygen Sensor Return

B

PPL/WHT

1668

Oxygen Sensor Signal

C

BLK

550

Ground

D

PNK

1539

Fused Ignition Positive Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1


Object Number: 258300 Size: CH

Connector Part Information
    • 12160482
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1667

Oxygen Sensor Return - Right - Forward

B

PPL

1666

Oxygen Sensor Signal - Right - Forward

C

BLK

550

Ground

D

PNK

539

Fused Ignition Positive Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2


Object Number: 258300 Size: CH

Connector Part Information
    • 12160482
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1671

Oxygen Sensor Return

B

PPL

1670

Oxygen Sensor Signal

C

BLK

550

Ground

D

PNK

1539

Fused Ignition Positive Voltage

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (Canada Built)


Object Number: 474210 Size: CH

Connector Part Information
    • 12176897
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

Ground

B

PPL/WHT

1665

Oxygen Sensor Signal - Left - Forward

C

PNK

539

Fused Ignition Positive Voltage

D

BLK

550

Ground

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (Canada Built)


Object Number: 474210 Size: CH

Connector Part Information
    • 12176897
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

Ground

B

PPL/WHT

1668

Oxygen Sensor Signal

C

PNK

1539

Fused Ignition Positive Voltage

D

BLK

550

Ground

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (Canada Built)


Object Number: 474210 Size: CH

Connector Part Information
    • 12176897
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

Ground

B

PPL

1666

Oxygen Sensor Signal - Right - Forward

C

PNK

539

Fused Ignition Positive Voltage

D

BLK

550

Ground

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (Canada Built)


Object Number: 474210 Size: CH

Connector Part Information
    • 12176897
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

Ground

B

PPL

1670

Oxygen Sensor Signal

C

PNK

1539

Fused Ignition Positive Voltage

D

BLK

550

Ground

Fuel Pump/Level Sensor


Object Number: 258300 Size: CH

Connector Part Information
    • 12160482
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Gauge Sensor Signal

B

GRY

120

Fuel Pump Motor Feed

C

BLK

1650

Ground

D

ORN/BLK

510

Fuel Sender Return

Idle Air Control (IAC) Valve


Object Number: 38608 Size: CH

Connector Part Information
    • 12162190
    • 4 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

444

Idle Air Control (IAC) Valve Feed (Coil B Low)

B

LT GRN/WHT

1749

Idle Air Control (IAC) Valve Feed (Coil B High)

C

LT BLU/BLK

1748

Idle Air Control (IAC) Valve Feed (Coil A Low)

D

LT BLU/WHT

1747

Idle Air Control (IAC) Valve Feed (Coil A High)

Transmission Input Speed Sensor (4L80-E)


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

1230

Transmission Input Speed Sensor Signal

B

DK BLU/WHT

1231

Transmission Input Speed Sensor Return

Vehicle Speed Sensor (VSS)


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

Vehicle Speed Sensor (VSS) Signal

B

LT GRN/BLK

822

Vehicle Speed Sensor (VSS) Return

C-1 Four Wheel Drive Adaptor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

Vehicle Speed Sensor (VSS) Signal

B

LT GRN/BLK

822

Vehicle Speed Sensor (VSS) Return

C-2 Four Wheel Drive Adaptor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

822

Vehicle Speed Sensor (VSS) Return

B

PPL/WHT

821

Vehicle Speed Sensor (VSS) Signal

Front Propshaft Speed Sensor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

400

Vehicle Speed Sensor (VSS) Signal

B

PPL

401

Vehicle Speed Sensor (VSS) Return

Rear Propshaft Speed Sensor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

2221

Vehicle Speed Sensor (VSS) Signal

B

DK GRN

2222

Vehicle Speed Sensor (VSS) Return

Engine Coolant Temperature (ECT) Sensor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162195
    • 2 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

720

Sensor Return

B

YEL

410

Coolant Temperature Sensor Signal

Exhaust Gas Recirculation (EGR) Valve


Object Number: 68773 Size: CH

Connector Part Information
    • 12186056
    • 5 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

257

Exhaust Gas Recirculation (EGR) Solenoid Control

B

PPL

719

Sensor Return

C

BRN

1456

Exhaust Gas Recirculation Solenoid Position Signal

D

GRY

596

Reference Voltage Feed (5 Volt)

E

RED

1676

Exhaust Gas Recirculation Solenoid Feed

Mass Air Flow (MAF) Sensor


Object Number: 366067 Size: CH

Connector Part Information
    • 15305555
    • 5 Way F GT 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

552

Sensor Return

B

TAN

472

Intake Air Temperature (IAT) Sensor Signal

C

BLK/WHT

451

Engine Control Module Ground

D

PNK

239

Fused Ignition Positive Voltage

E

YEL

492

Mass Air Flow (MAF) Sensor Signal

C-1 Park/Neutral Position Switch


Object Number: 40412 Size: CH

Connector Part Information
    • 12191757
    • 4 Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

Transmission Position Switch Signal - BIT 1

B

GRY

773

Transmission Position Switch Signal - BIT 3

C

WHT

776

Transmission Position Switch Signal - PARITY BIT

D

YEL

772

Transmission Position Switch Signal - BIT 2

C-2 Park/Neutral Position Switch


Object Number: 68780 Size: CH

Connector Part Information
    • 12129840
    • 7 Way F Metri-Pack Mixed Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

LT GRN

275

Transmission Mounted Neutral Safety Switch Output - Park

C

PNK

839

Fused Ignition 1 Feed

D

BLK/WHT

451

Engine Control Module Ground

E

PPL/WHT

1035

Starter Relay Feed - Coil

F

LT GRN

24

Back-up Lamp Feed

G

YEL

1737

Transmission Mounted Neutral Safety Switch Output - Park/Neutral

Fuel Injector 1


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

1744

Fuel Injector 1 Output

B

PNK

1039

Fused Ignition Positive Voltage

Fuel Injector 2


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

1745

Fuel Injector 2 Output

B

PNK

1239

Fused Ignition Positive Voltage

Fuel Injector 3


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

1746

Fuel Injector 3 Output

B

PNK

1039

Fused Ignition Positive Voltage

Fuel Injector 4


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

844

Fuel Injector 4 Output

B

PNK

1239

Fused Ignition Positive Voltage

Fuel Injector 5


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

845

Fuel Injector 5 Output

B

PNK

1039

Fused Ignition Positive Voltage

Fuel Injector 6


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL/BLK

846

Fuel Injector 6 Output

B

PNK

1239

Fused Ignition Positive Voltage

Fuel Injector 7


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

877

Fuel Injector 7 Output

B

PNK

1039

Fused Ignition Positive Voltage

Fuel Injector 8


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

878

Fuel Injector 8 Output

B

PNK

1239

Fused Ignition Positive Voltage

Crankshaft Position (CKP) Sensor


Object Number: 366117 Size: CH

Connector Part Information
    • 15324165
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

1869

Crankshaft Position Sensor Signal

B

YEL/BLK

1868

Crankshaft Position Sensor Return

C

LT GRN

1867

Crankshaft Position Sensor Feed - 12 Volt

Automatic Transmission (4.8L, 5.3L)


Object Number: 258240 Size: CH

Connector Part Information
    • 12160493
    • 20 Way F Micro-Pack 100 W Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1222

Shift Solenoid A Output

B

YEL/BLK

1223

Shift Solenoid B Output

C

RED/BLK

1228

Transmission Force Motor Feed

D

LT BLU/WHT

1229

Transmission Force Motor Return

E

PNK

1020

Fused OFF/Run/Crank Feed

F-K

--

--

Not Used

L

YEL/BLK

1227

Transmission Temperature Sensor Signal

M

BLK

407

Sensor Return

N

PNK

1224

Transmission Pressure Switch Signal - BIT 1

P

RED

1226

Transmission Pressure Switch Signal - BIT 3

R

DK BLU

1225

Transmission Pressure Switch Signal - BIT 2

S

WHT

687

Shift Solenoid Output - 3/2

T

TAN/BLK

422

Torque Converter Clutch Solenoid Output

U

BRN

418

Torque Converter Clutch Solenoid Output - Pulse Width Modulation

V-W

--

--

Not Used