GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Tahoe - 2WD 🢒 Engine 🢒 Engine Electrical 🢒 Engine Controls Connector End Views
Table 1: Accelerator Pedal Position (APP) Sensor
Table 2: Camshaft Position (CMP) Sensor
Table 3: Crankshaft Position (CKP) Sensor
Table 4: Engine Coolant Temperature (ECT) Sensor
Table 5: Evaporative Emission (EVAP) Canister Purge Solenoid
Table 6: Evaporative Emission (EVAP) Canister Vent Solenoid
Table 7: Fuel Composition Sensor (L59)
Table 8: Fuel Injector 1 (Except L59)
Table 9: Fuel Injector 1 (L59)
Table 10: Fuel Injector 2 (Except L59)
Table 11: Fuel Injector 2 (L59)
Table 12: Fuel Injector 3 (Except L59)
Table 13: Fuel Injector 3 (L59)
Table 14: Fuel Injector 4 (Except L59)
Table 15: Fuel Injector 4 (L59)
Table 16: Fuel Injector 5 (Except L59)
Table 17: Fuel Injector 5 (L59)
Table 18: Fuel Injector 6 (Except L59)
Table 19: Fuel Injector 6 (L59)
Table 20: Fuel Injector 7 (Except L59)
Table 21: Fuel Injector 7 (L59)
Table 22: Fuel Injector 8 (Except L59)
Table 23: Fuel Injector 8 (L59)
Table 24: Fuel Pump (FP) Relay - Secondary (w/Dual Tanks)
Table 25: Fuel Tank Pressure (FTP) Sensor
Table 26: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (L59/LM7)
Table 27: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (LR4)
Table 28: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (LQ4)
Table 29: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (L59/LM7)
Table 30: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (LR4/LQ4)
Table 31: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (L59/LM7)
Table 32: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (LR4)
Table 33: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (LQ4)
Table 34: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (L59/LM7)
Table 35: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (LR4/LQ4)
Table 36: Ignition Coil 1
Table 37: Ignition Coil 2
Table 38: Ignition Coil 3
Table 39: Ignition Coil 4
Table 40: Ignition Coil 5
Table 41: Ignition Coil 6
Table 42: Ignition Coil 7
Table 43: Ignition Coil 8
Table 44: Knock Sensor (KS) - 1
Table 45: Knock Sensor (KS) - 2
Table 46: Manifold Absolute Pressure (MAP) Sensor
Table 47: Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Table 48: Throttle Actuator Control (TAC) Module C1
Table 49: Throttle Actuator Control (TAC) Module C2
Table 50: Throttle Body

Accelerator Pedal Position (APP) Sensor


Object Number: 366097 Size: CH

Connector Part Information
    • 15318071
    • 10-Way F Metri-Pack 150 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PU

1272

5-Volt Reference

C

L-BU

1162

APP Sensor 2 Signal

D

TN

1274

Low Reference

E

BN

1271

Low Reference

F

D-BU

1161

APP Sensor 1 Signal

G

WH/BK

1164

5-Volt Reference

H-K

--

--

Not Used

Camshaft Position (CMP) Sensor


Object Number: 516611 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BN/WH

633

CMP Sensor Signal

B

PK/BK

632

Low Reference

C

RD

631

12-Volt Reference

Crankshaft Position (CKP) Sensor


Object Number: 366117 Size: CH

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

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


Object Number: 900247 Size: CH

Connector Part Information
    • 15359366
    • 2-Way F GT 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

407

Low Reference

B

YE

410

ECT Sensor Signal

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 35437 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PK

439

Ignition 1 Voltage

B

D-GN/WH

428

EVAP Canister Purge Solenoid Control

Evaporative Emission (EVAP) Canister Vent Solenoid


Object Number: 684795 Size: CH

Connector Part Information
    • 12052643
    • 2-Way F Metri-Pack 150 Series, Sealed (RD)

Pin

Wire Color

Circuit No.

Function

A

WH

1310

EVAP Canister Vent Solenoid Control

B

OG

2640

Battery Positive Voltage

Fuel Composition Sensor (L59)


Object Number: 68743 Size: CH

Connector Part Information
    • 12146121
    • 3-Way F Metri-Pack 150 Series, Sealed (BN)

Pin

Wire Color

Circuit No.

Function

A

WH

1579

Fuel Temperature/Composition Signal

B

PK

439

Ignition 1 Voltage

C

BK

550

Ground

Fuel Injector 1 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

BK

1744

Fuel Injector 1 Control

Fuel Injector 1 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15355226
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

BK

1744

Fuel Injector 1 Control

Fuel Injector 2 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 2 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15355226
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 3 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

PK/BK

1746

Fuel Injector 3 Control

Fuel Injector 3 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

PK/BK

1746

Fuel Injector 3 Control

Fuel Injector 4 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

L-BU/BK

844

Fuel Injector 4 Control

Fuel Injector 4 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15355226
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

L-BU/BK

844

Fuel Injector 4 Control

Fuel Injector 5 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

BK/WH

845

Fuel Injector 5 Control

Fuel Injector 5 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15355226
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

BK/WH

845

Fuel Injector 5 Control

Fuel Injector 6 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

YE/BK

846

Fuel Injector 6 Control

Fuel Injector 6 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15355226
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

YE/BK

846

Fuel Injector 6 Control

Fuel Injector 7 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

RD/BK

877

Fuel Injector 7 Control

Fuel Injector 7 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15355226
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1039

Ignition 1 Voltage

B

RD/BK

877

Fuel Injector 7 Control

Fuel Injector 8 (Except L59)


Object Number: 833727 Size: CH

Connector Part Information
    • 15411634
    • 2-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

D-BU/WH

878

Fuel Injector 8 Control

Fuel Injector 8 (L59)


Object Number: 603098 Size: CH

Connector Part Information
    • 15355226
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1239

Ignition 1 Voltage

B

D-BU/WH

878

Fuel Injector 8 Control

Fuel Pump (FP) Relay - Secondary (w/Dual Tanks)


Object Number: 535912 Size: CH

Connector Part Information
    • 12129716
    • 4-Way F Metri-Pack 280 Series FLX LK (GY)

Pin

Wire Color

Circuit No.

Function

30

PK

139

Ignition 1 Voltage

85

GY

120

Fuel Pump Supply Voltage

86

TN

1465

Fuel Pump Relay Control - Secondary

87

L-GN

1058

Fuel Balance Pump Supply Voltage

Fuel Tank Pressure (FTP) Sensor


Object Number: 516611 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BK

470

Low Reference

B

D-GN

890

Fuel Tank Pressure Sensor Signal

C

GY

474

5-Volt Reference

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (L59/LM7)


Object Number: 474210 Size: CH

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

539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (LR4)


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423
    • 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

539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (LQ4)


Object Number: 831392 Size: CH

Connector Part Information
    • 12092839
    • 4-Way M Metri-Pack 150 Series (BK)

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

--

--

Not Used

D

PK

539

Ignition 1 Voltage

E

BK/WH

3113

HO2S Heater Low Control Bank 1 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (L59/LM7)


Object Number: 474210 Size: CH

Connector Part Information
    • 12160482
    • 4-Way F 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

1539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (LR4/LQ4)


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423
    • 4-Way F 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

1539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (L59/LM7)


Object Number: 474210 Size: CH

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

539

HO2S High Signal Bank 2 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (LR4)


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423
    • 4-Way F Metri-Pack 150 Series (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

539

HO2S High Signal Bank 2 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (LQ4)


Object Number: 831392 Size: CH

Connector Part Information
    • 12092839
    • 4-Way F Metri-Pack 150 Series (BK)

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

--

--

Not Used

D

PK

539

HO2S High Signal Bank 2 Sensor 1

E

L-GN

3212

HO2S Heater Low Control Bank 2 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (L59/LM7)


Object Number: 474210 Size: CH

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

1539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (LR4/LQ4)


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423
    • 4-Way F Metri-Pack 150 Series (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

1539

Ignition 1 Voltage

Ignition Coil 1


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2129

Low Reference

C

PU

2121

IC 1 Control

D

PK

1039

Ignition 1 Voltage

Ignition Coil 2


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2130

Low Reference

C

RD

2122

IC 2 Control

D

PK

1239

Ignition 1 Voltage

Ignition Coil 3


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2129

Low Reference

C

L-BU

2123

IC 3 Control

D

PK

1039

Ignition 1 Voltage

Ignition Coil 4


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2130

Low Reference

C

D-GN

2124

IC 4 Control

D

PK

1239

Ignition 1 Voltage

Ignition Coil 5


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2129

Low Reference

C

D-GN

2125

IC 5 Control

D

PK

1039

Ignition 1 Voltage

Ignition Coil 6


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2130

Low Reference

C

L-BU

2126

IC 6 Control

D

PK

1239

Ignition 1 Voltage

Ignition Coil 7


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2129

Low Reference

C

RD

2127

IC 7 Control

D

PK

1039

Ignition 1 Voltage

Ignition Coil 8


Object Number: 1401799 Size: CH

Connector Part Information
    • 15413116
    • 4-Way F GT 150 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

BN

2130

Low Reference

C

PU

2128

IC 8 Control

D

PK

1239

Ignition 1 Voltage

Knock Sensor (KS) - 1


Object Number: 35416 Size: CH

Connector Part Information
    • 12103023
    • 1-Way TRW (GY)

Pin

Wire Color

Circuit No.

Function

A

D-BU

496

Knock Sensor 1 Signal

Knock Sensor (KS) - 2


Object Number: 35416 Size: CH

Connector Part Information
    • 12103023
    • 1-Way TRW (GY)

Pin

Wire Color

Circuit No.

Function

A

L-BU

1876

Knock Sensor 2 Signal

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

OG/BK

469

Low Reference

B

L-GN

432

MAP Sensor Signal

C

GY

597

5-Volt Reference

Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor


Object Number: 366067 Size: CH

Connector Part Information
    • 15305555
    • 5-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

552

Low Reference

B

TN

472

IAT Sensor Signal

C

BK/WH

451

Ground

D

PK

439

Ignition 1 Voltage

E

YE

492

MAF Sensor Signal

Throttle Actuator Control (TAC) Module C1


Object Number: 1505702 Size: CH

Connector Part Information
    • 12191068
    • 16-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

1

D-GN

485

TP Sensor 1 Signal

2

GY

416

5-Volt Reference

3

BK

452

Low Reference

4

D-BU

84

Cruise Control Set/Coast Switch Signal

5

GY/BK

87

Cruise Control Resume/Accel Switch Signal

6

L-BU

1320

CHMSL Supply Voltage

7

PK

1339

Ignition 1 Voltage

8

BN

582

TAC Motor Control - 2

9

L-BU/BK

1688

5-Volt Reference

10

BK/WH

1704

Low Reference

11

PU

486

TP Sensor 2 Signal

12

OG/BK

1061

UART Serial Data

13

D-BU/WH

774

UART Serial Data

14

GY

397

Cruise Control On Switch Signal

15

BK

550

Ground

16

YE

581

TAC Motor Control - 1

Throttle Actuator Control (TAC) Module C2


Object Number: 666638 Size: CH

Connector Part Information
    • 12177081
    • 10-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PU

1272

5-Volt Reference

C

L-BU

1162

APP Sensor 2 Signal

D

TN

1274

Low Reference

E

--

--

Not Used

F

D-BU

1161

APP Sensor 1 Signal

G

WH/BK

1164

5-Volt Reference

H

Not Used

J

BN

1271

Low Reference

K

--

--

Not Used

Throttle Body


Object Number: 831368 Size: CH

Connector Part Information
    • 15326836
    • 8-Way F GT 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

581

TAC Motor Control - 1

B

BK/WH

1704

Low Reference

C

BN

582

TAC Motor Control - 2

D

BK

452

Low Reference

E

L-BU/BK

1688

5-Volt Reference

F

PU

486

TP Sensor 2 Signal

G

D-GN

485

TP Sensor 1 Signal

H

GY

416

5-Volt Reference