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

Transmission Control Module (TCM) , Engine Side


Object Number: 1372727  Size: CH

Connector Part Information

  • OEM: 89046898
  • Service: 88987979
  • Description: 49-Way F GT 280 Micro-64 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15359541/4/22
  • Core/Insulation Crimp: J-38125-64 M/M
  • Release Tool/Test Probe: J-38125-21/J-35616-64B (L-BU)

Transmission Control Module (TCM), Engine Side

Pin

Wire Color

Circuit No.

Function

1

BN

418

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

--

--

Not Used

5

BN/WH

6354

Transmission Output Speed Sensor High Signal (LE5 only)

5

--

--

Not Used (LZ4)

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

YE

657

TCC Release Switch Signal (LE5)

9

WH

1804

TCC Release Switch Signal (LZ4)

10

PU

5526

Tap Up/Tap Down Switch Signal

11

BN

4

Ignition 1 Voltage

12-15

--

--

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

TN/WH

771

Transmission Range Switch Signal A

30

TN

2762

Transmission Fluid Temperature (TFT) Sensor Low Reference

31

PK

39

Ignition 1 Voltage

32

RD/WH

2040

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

WH

17

Stop Lamp Supply Voltage

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

Output Speed Sensor (OSS), Wiring Harness Side


Object Number: 655692  Size: CH

Connector Part Information

  • OEM: 15449028
  • Service: 88987993
  • Description: 2-Way F GT 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326266
  • Core/Insulation Crimp: C
  • Release Tool/Test Probe: see terminal repair kit

Output Speed Sensor (OSS), Wiring Harness Side

Pin

Wire Color

Circuit No.

Function

A

PU

401

VSS Low Signal

B

YE

400

VSS High Signal

Park/Neutral Position Switch


Object Number: 901402  Size: CH

Connector Part Information

  • OEM: 15419116
  • Service: 22710826
  • Description: 12-Way F GT 150, 280 Series SLD (BK)

Terminal Part Information

  • Terminal/Tray: see terminal repair kit
  • Core/Insulation Crimp: see terminal repair kit
  • Release Tool/Test Probe: see terminal repair kit

Park/Neutral Position Switch

Pin

Wire Color

Circuit No.

Function

1

BK/WH

451

Ground

2

WH

776

Transmission Range Signal P

3-7

--

--

Not Used

8

YE

772

Transmission Range Signal B

9

TN/WH

771

Transmission Range Signal A

10

GY

773

Transmission Range Signal C

11

BK/WH

451

Ground

12

PK

1786

Park/Neutral Signal