GM Service Manual Online
For 1990-2009 cars only
Table 1: Transmission Control Module (TCM), Engine Side
Table 2: Park/Neutral Position (PNP) Switch
Table 3: Output Speed Sensor (OSS) Connector, Wiring Harness Side
Table 4: Two-Way Brake Switch Connector, Wiring Harness Side
Table 5: Four-Way Brake Switch Connector, Wiring Harness Side

Transmission Control Module (TCM), Engine Side


Object Number: 1372727  Size: CH

Connector Part Information

    • 15463921
    • Conn 49-Way F Micro-64 GT 280 (BK) Sealed

Pin

Wire Color

Circuit No.

Function

1

BN

422

Torque Converter Clutch Pulse Width Modulated (TCC PWM) Solenoid Valve Control

2

L-GN

1222

1-2 Shift Solenoid (SS) Valve Control

3

OG/BK

1230

Input Speed Sensor (ISS) High Signal

4-5

--

--

Not Used

6

TN

2501

High Speed GMLAN Serial Data Bus - (CAN)

7

TN/BK

2500

High Speed GMLAN Serial Data Bus + (CAN)

8

--

--

Not Used

9

WH

657

TCC Release Switch Signal

10-15

--

--

Not Used

16

PU

401

Output Speed Sensor (OSS) Low Signal

17

L-BU/WH

1229

Pressure Control (PC) Solenoid Valve Low Control

18-19

--

--

Not Used

20

YE/BK

1223

2-3 SS Valve Control

21-22

--

--

Not Used

23

GY

773

Transmission Range Switch Signal C

24-25

--

--

Not Used

26

D-BU/WH

1231

ISS Low Signal

27-28

--

--

Not Used

29

BK/WH

771

Transmission Range Switch Signal A

30

TN

2762

Transmission Fluid Temperature (TFT) Sensor Low Reference

31

PK

1039

Ignition 1 Voltage

32

RD/WH

840

Battery Positive Voltage

33

OG

1226

Transmission Fluid Pressure (TFP) Switch Signal C

34

--

--

Not Used

35

YE/BK

1227

TFT Sensor Signal

36

--

--

Not Used

37

TN

2501

High Speed GMLAN Serial Data Bus - (CAN)

38

TN/BK

2500

High Speed GMLAN Serial Data Bus + (CAN)

39

WH

776

Transmission Range Switch Signal P

40

OG/BK

1228

PC Solenoid Valve High Control

41

YE

400

OSS High Signal

42

L-BU/WH

20

Stop Lamp Switch Signal

43

--

--

Not Used

44

D-BU

1225

TFP Switch Signal B

45

--

--

Not Used

46

YE

772

Transmission Range Switch Signal B

47-48

--

--

Not Used

49

BK/WH

451

Ground

Park/Neutral Position (PNP) Switch


Object Number: 1256394  Size: CH

Connector Part Information

    • 15416724
    • Conn 12-Way F GT Delphi (L-GY)

Pin

Wire Color

Circuit No.

Function

1

YE

575

Starter Control

2

WH

776

Transmission Range Signal P

3

--

--

Not Used

4

L-GN

24

Backup Lamp Supply Voltage

5

PK

539

Ignition 1 Voltage

6-7

--

--

Not Used

8

YE

772

Transmission Range Signal B

9

BK/WH

771

Transmission Range Signal A

10

GY

773

Transmission Range Signal C

11

BK/WH

451

Ground

12

PK

539

Ignition 1 Voltage

Output Speed Sensor (OSS) Connector, Wiring Harness Side


Object Number: 655692  Size: CH

Connector Part Information

    • 15449028
    • Conn 2-Way F Metri-Pack 150.2 P2S (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

401

OSS High Signal

B

YE

400

OSS Low Signal

Two-Way Brake Switch Connector, Wiring Harness Side


Object Number: 287957  Size: CH

Connector Part Information

    • 12041433
    • Conn 2-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

439

Ignition 1 Voltage

B

PU

420

TCC Brake Switch/Cruise Control Release Switch Signal

Four-Way Brake Switch Connector, Wiring Harness Side


Object Number: 40397  Size: CH

Connector Part Information

    • 12033706
    • Conn 4-Way F Metri-Pack 280 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

PK

439

Ignition 1 Voltage

B

PU

420

TCC Brake Switch/Cruise Control Release Switch Signal

C-D

--

--

Not Used