GM Service Manual Online
For 1990-2009 cars only
Table 1: C001
Table 2: C002

C001


Object Number: 358779  Size: CF

Connector Part Information

    • Connector - 12129025
    • Terminal - 12084912
    • Seal - 12129026
    • TPA (CLR) - 12129022
    • 32 Pin (GRY/WHT/CLR)

Pin

Wire Color

Circuit No.

Function

1

LT BLU

901

Low Pressure Lock-Off Solenoid Control

2

DK GRN

903

Idle Solenoid Control

3

LT GRN

911

Fuel Control Solenoid Control

4

PPL

1666

Bank 2 Sensor 1-Right Bank-HO2S High Signal Input

5

TAN

1667

Bank 2 Sensor 1-Right Bank-HO2S Low-Ground

6

PPL/WHT

1665

Bank 1 Sensor 1-Left Bank-HO2S High Signal Input

7

TAN/WHT

1653

Bank 1 Sensor 1-Left Bank-HO2S Low-Ground

8-13

--

--

Not Used

14

BRN

912

Fuel Gage Select Switch Signal Input

15

PNK

1020

AF ECM Power Supply - Ignition

16

ORN

1340

AF ECM Power Supply - Battery

17

--

--

Not Used

18

ORN

931

Fuel Tank Pressure (FTP) Sensor 5 Volt Reference

19

DK BLU

930

Sensor Ground (FTP/FTT)

20

BLK

925

Production Use - Serial Data Ground

21

BLK

450

AF ECM Ground

22

BLK

450

AF ECM Ground

23

BLK

450

AF ECM Ground

24

BLK

450

AF ECM Ground

25

--

--

Not Used

26

DK GRN/WHT

428

EVAP Canister Purge Signal

27-31

--

--

Not Used

32

RED

926

Production Use - Serial Data Power

C002


Object Number: 358772  Size: CF

Connector Part Information

    • Connector - 12129025
    • Terminal - 12084912
    • Seal - 12129026
    • TPA (BLU) - 12129023
    • 32 Pin

Pin

Wire Color

Circuit No.

Function

1

PPL

1807

Serial Data-Class 2

2

DK BLU

919

Malfunction Indicator Lamp (MIL) Control

3

RED

2531

Natural Gas Operation (NGO) Enable

4

--

--

Not Used

5

WHT

924

Production Use - Serial Data Transmit

6

--

--

Not Used

7

DK GRN

2532

EVAP Canister Purge Enable

8

TAN/WHT

928

Fuel Level Output (CNG)

9

BLK

933

Lock-Off Relay Control

10

DK GRN

923

Production Use - Serial Data Receive

11

--

--

Not Used

12

YEL

410

Engine Coolant Temperature (ECT) Sensor Signal Input

13

TAN

472

Intake Air Temperature (IAT) Sensor Signal Input

14

LT GRN

432

Manifold Absolute Pressure (MAP) Sensor Signal Input

15

DK GRN/WHT

817

Vehicle Speed Input-4K Pulses Per Mile

16

--

--

Not Used

17

YEL

492

Mass Air Flow (MAF) Sensor Signal Input

18

WHT

121

Engine Speed Signal Input-Tach

19-21

--

--

Not Used

22

BRN/WHT

419

MIL Control Input-from gasoline control module MIL Output

23

BRN

929

Fuel Tank Temperature (FTT) Sensor Signal Input (CNG)

24

GRY

932

Fuel Tank Pressure (FTP) Sensor Signal Input (CNG)

25-26

--

--

Not Used

27

DK BLU

417

Throttle Position (TP) Sensor Signal Input

28

ORN/BLK

469

Sensor Ground-from gasoline control module

29

GRY

2704

5 Volt Reference Input-from gasoline control module

30

BRN

905

Fuel Pump Relay Control-disables gasoline fuel pump when energized

31

PPL

914

Fuel Indicator Lamp Control

32

GRY

904

Fuel Gage Relay Control