GM Service Manual Online
For 1990-2009 cars only
Connector 1: Transmission Control Module (TCM), Engine Side
Connector 2: Transmission Range Switch, Wiring Harness Side
Connector 3: Vehicle Speed Sensor Assembly, Wiring Harness Side

Transmission Control Module (TCM), Engine Side


Object Number: 1530595  Size: CH

Connector Part Information

  • OEM: 15463921
  • Service: 89046898
  • Description: Conn 49-Way F Micro-64 GT 280 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M
  • Release Tool/Test Probe: 15381651-2/J35616-64B

Transmission Control Module (TCM), Engine Side

Pin

Wire Color

Circuit No.

Function

1

BN

418

TCC  PWM Solenoid Valve Control

2

L-GN

1222

1-2 Shift Solenoid Valve Control

3

OG

1983

ISS Signal

4

--

--

Not Used

5

OG/BK

6399

Replicated TOS Signal

6

TN

2501

High Speed GMLAN Serial Data Bus -

7

TN/BK

2500

High Speed GMLAN Serial Data Bus +

8-10

--

--

Not Used

11

D-BU

5985

Accessory Wake Up Serial Data

12-13

--

--

Not Used

14

WH

687

3-2 Shift Solenoid Valve Control

15

--

--

Not Used

16

L-GN/BK

822

VSS High Signal

17

L-BU/WH

1229

PC Solenoid Valve Low Control

18-19

--

--

Not Used

20

YE/BK

1223

2-3 Shift Solenoid Valve Control

21-22

--

--

Not Used

23

GY

773

Transmission Range Switch Signal C

24

PK

1224

Transmission Fluid Pressure Switch Signal A

25

TN/BK

422

TCC Solenoid Valve Control

26-28

--

--

Not Used

29

TN/WH

771

Transmission Range Switch Signal A

30

TN

2762

Low Reference

31

PK

2139

Ignition 1 Voltage

32

RD/WH

1840

Battery Positive Voltage

33

OG

1226

Transmission Fluid Pressure 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 -

38

TN/BK

2500

High Speed GMLAN Serial Data Bus +

39

WH

776

Transmission Range Switch Signal P

40

OG/BK

1228

PC Solenoid Valve High Control

41

PU/WH

821

VSS Low Signal

42

L-BU/WH

6311

Brake Switch Signal

43

--

--

Not Used

44

D-BU

1225

Transmission Fluid Pressure Switch Signal B

45

L-BU

1984

Low Reference

46

YE

772

Transmission Range Switch Signal B

47-48

--

--

Not Used

49

BK/WH

451

Ground

Transmission Range Switch, Wiring Harness Side


Object Number: 901402  Size: CH

Connector Part Information

  • OEM: 15416722
  • Service: 88987526
  • Description: ASM Conn 12-Way F GT (GY)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Transmission Range Switch, Wiring Harness Side

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

OG/BK

1786

P/N Position Switch Signal

4

YE

772

Transmission Range Switch Signal B

5

TN/WH

771

Transmission Range Switch Signal A

6

GY

773

Transmission Range Switch Signal C

7

BK/WH

451

Ground

8

WH

776

Transmission Range Switch Signal P

9-12

--

--

Not Used

Vehicle Speed Sensor Assembly, Wiring Harness Side


Object Number: 1538760  Size: CH

Connector Part Information

  • OEM: 15449028
  • Service: 88987993
  • Description: 2-Way F GT 150 series sealed

Terminal Part Information

  • Terminal/Tray:15326267/19
  • Core/Insulation Crimp: E4
  • Release Tool/Test Probe: 15315247/J-35616-2A-GY

Vehicle Speed Sensor Assembly, Wiring Harness Side

Pin

Wire Color

Circuit No.

Function

A

PU/WH

821

VSS High Signal

B

L-GN/BK

822

VSS Low Signal