GM Service Manual Online
For 1990-2009 cars only
Table 1: Coil Driver -- 4.3L
Table 2: Crankshaft Position (CKP) Sensor 4.3L
Table 3: Camshaft Position (CMP) Sensor 4.3L
Table 4: Manifold Absolute Pressure (MAP) Sensor
Table 5: Ignition Coil
Table 6: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Table 7: Engine Coolant Temperature (ECT) Sensor
Table 8: Exhaust Gas Recirculation (EGR) Valve
Table 9: Mass Air Flow (MAF) Sensor
Table 10: Automatic Transmission
Table 11: C1 Park/Neutral Position Switch
Table 12: C2 Park/Neutral Position Switch
Table 13: Injector Harness Connector
Table 14: Throttle Positon (TP) Sensor
Table 15: Knock Sensor 4.3L

Coil Driver -- 4.3L


Object Number: 38608  Size: CH

Connector Part Information

    • 12162189
    • 4 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

1239

Fused Ignition Feed

B

WHT

423

Electronic Spark Timing Control - Signal

C

BLK

550

Ground

D

WHT/BLK

1847

Ignition Coil Output

Crankshaft Position (CKP) Sensor 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

PNK

1239

Fused Ignition Feed

B

PPL

574

Crankshaft Position (CKP) Sensor Return

C

YEL

573

Crankshaft Position (CKP) Sensor Signal

Camshaft Position (CMP) Sensor 4.3L


Object Number: 68730  Size: CH

Connector Part Information

    • 12110293
    • 3 Way F Metri-Pack 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

632

Camshaft Position (CMP) Sensor Return

B

BRN/WHT

633

Camshaft Position (CMP) Sensor Signal

C

PNK

239

Fused Ignition Feed

Manifold Absolute Pressure (MAP) Sensor


Object Number: 68740  Size: CH

Connector Part Information

    • 12129946
    • 3 Way F Metri-Pack 150 (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Manifold Absolute Pressure (MAP) Sensor Return

B

LT GRN

432

Manifold Absolute Pressure (MAP) Sensor Signal

C

GRY

474

Reference Voltage Feed (5 Volts)

Ignition Coil


Object Number: 68743  Size: CH

Connector Part Information

    • 12146121
    • 3 Way F Metri-Pack 150 (BRN)

Pin

Wire Color

Circuit No.

Function

A

PNK

1039

Fused Ignition 1 Feed

B

--

--

Not Used

C

WHT/BLK

1847

Ignition Coil Output

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 280761  Size: CH

Connector Part Information

    • 12160825
    • 4 Way M Metri-Pack 150 (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 1 Feed

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

BLK

452

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 Vent Solenoid Output

B

BLK

470

Sensor Return

C

BRN

1456

Exhaust Gas Recirculation Solenoid Position Signal

D

GRY

474

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

470

Sensor Return

B

TAN

472

Manifold Absolute Temperature Sensor Signal

C

BLK/WHT

451

Engine Control Module Ground

D

PNK

239

Fused Ignition 1 Feed

E

YEL

492

Mass Air Flow (MAF) Sensor Signal

Automatic Transmission


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

470

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

C1 Park/Neutral Position Switch


Object Number: 40412  Size: CH

Connector Part Information

A

    • 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

YEL

772

Transmission Position Switch Signal - BIT 2

C

GRY

773

Transmission Position Switch Signal - BIT 3

D

WHT

776

Transmission Position Switch Signal - PARITY BIT

C2 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

Injector Harness Connector


Object Number: 39782  Size: CH

Connector Part Information

    • 12177083
    • 21 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

845

Fuel Injector 5 Output

B

PNK

1039

Fused Ignition 1 Feed

C

PNK/BLK

1746

Fuel Injector 3 Output

D

PNK

1039

Fused Ignition 1 Feed

E

PNK

1039

Fused Ignition 1 Feed

F

BLK

1744

Fuel Injector 1 Output

G

LT GRN/BLK

1745

Fuel Injector 2 Output

H

PNK

1239

Fused Ignition 1 Feed

J

PNK

1239

Fused Ignition 1 Feed

K

LT BLU/BLK

844

Fuel Injector 4 Output

L

PNK

1239

Fused Ignition 1 Feed

M

YEL/BLK

846

Fuel Injector 6 Output

Throttle Positon (TP) Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12110192
    • 3 Way F 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

Reference Voltage Feed - 5 Volts

B

BLK

452

Sensor Return

C

DK BLU

417

Throttle Position (TP) Sensor Signal

Knock Sensor 4.3L


Object Number: 35416  Size: CH

Connector Part Information

    • 12103023
    • 1 Way F TWR Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

Knock Sensor Signal #1