GM Service Manual Online
For 1990-2009 cars only
Table 1: Transmission Control Module (TCM) C1
Table 2: Transmission Control Module C2
Table 3: Park/Neutral Position Switch C1
Table 4: Park/Neutral Position Switch C2
Table 5: Automatic Transmission Turbine Speed Sensor
Table 6: Automatic Transmission Input Shaft Speed (AT ISS) Sensor
Table 7: Vehicle Speed Sensor (VSS) Connector

Transmission Control Module (TCM) C1


Object Number: 698666  Size: CH

Connector Part Information

    • 15305371
    • 32-Way F Micro-Pack 100W Series (GRY)

Pin

Wire Color

Circuit No.

Function

1

BLK/WHT

451

Ground

2

PNK

1020

Off/Run/Crank Voltage

3

ORN

440

Battery Positive Voltage

4

PNK

1020

Off/Run/Crank Voltage

5

BLK/WHT

451

Ground

6

YEL

2522

Power Take Off (PTO) Reference Voltage

7

PPL

420

TCC Brake Switch/ Cruise Control Release Signal

8

--

--

Not Used

9

WHT

2467

Unmanaged Torque Signal

10

GRY/BLK

1694

4WD Low Signal

11-15

--

--

Not Used

16

TAN/BLK

464

Delivered Torque Signal (Gas Only)

17-21

--

--

Not Used

22

ORN/BLK

463

Requested Torque Signal

23-24

--

--

Not Used

25

DK BLU

2687

Transmission MIL Request Signal

26

--

--

Not Used

27

YEL

400

Signal High - Front

28

--

--

Not Used

29

YEL

2361

CAN Data Link Signal HI

30

YEL

2470

Class 2 Serial Data

31

--

--

Not Used

32

DK GRN

2362

CAN Data Link Signal LO

Transmission Control Module C2


Object Number: 698666  Size: CH

Connector Part Information

    • 15305371
    • 32-Way F Micro-Pack 100W Series (RED)

Pin

Wire Color

Circuit No.

Function

1

PNK

1224

Fluid Pressure Switch Signal C

2

DK BLU

1225

Fluid Pressure Switch Signal D

3

RED

1226

Fluid Pressure Switch Signal E

4

LT GRN/BLK

2529

Fluid Pressure Switch Reverse Signal

5

BLK/WHT

771

Transmission Range Switch Signal A

6

YEL

772

Transmission Range Switch Signal B

7

GRY

773

Transmission Range Switch Signal C

8

WHT

776

Transmission Range Switch Signal P

9

--

--

Not Used

10

YEL/BLK

1227

TFT Sensor Signal

11-12

--

--

Not Used

13

ORN

1983

Transmission Turbine Speed Switch Signal

14

LT BLU

1984

Transmission Turbine Speed Switch Low Reference

15

PPL/WHT

821

Vehicle Speed Signal HI

16

LT GRN/BLK

822

Vehicle Speed Signal LO

17

RED/BLK

1230

AT ISS Signal High

18

DK

BLU/WHT

1231

AT ISS Signal Low

19

--

--

Not Used

20

BLK

2762

Low Reference

21

PPL

2471

Trans ID

22

LT BLU/WHT

1229

PPC Solenoid A Valve High Control

23

RED/BLK

1228

PPC Solenoid A Valve Low Control

24

PNK/BLK

2468

PPC Solenoid B Valve High Control

25

BRN/WHT

2469

PPC Solenoid B Valve Low Control

26

LT GRN

1222

Shift Solenoid C Valve Control

27

YEL/BLK

1223

Shift Solenoid D Valve Control

28

ORN/WHT

2527

Shift Solenoid E Valve Control

29

BRN

418

TCC PWM Solenoid Valve Control

30

--

--

Not Used

31

BRN

323

12 Volt Reference

32

DK

GRN/WHT

2528

TCC PWM Solenoid Supply Voltage

Park/Neutral Position Switch C1


Object Number: 655808  Size: CH

Connector Part Information

    • 15324591
    • 4-Way F Metri-Pack 150 Series Sealed ()

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

Transmission Range Switch Signal A & MT1

B

GRY

773

Transmission Range Switch Signal C & MT1

C

WHT

776

Transmission Range Switch Signal P & MT1

D

YEL

772

Transmission Range Switch Signal B & MT1

Park/Neutral Position Switch C2


Object Number: 535900  Size: CH

Connector Part Information

    • 12129840
    • 7-Way F Metri-Pack 150 280 (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

1786

B

LT GRN

275

Park Neutral Position Switch Park Signal

C

PNK

839

Ignition 1 Voltage

D

BLK/WHT

451

Ground & M30/MT1/M74

E

PPL/WHT

1035

Starter Relay Coil Supply Voltage

F

LT GRN

24

Backup Lamp Supply Voltage

G

YEL

1737

Neutral Safety Switch Park/Neutral Signal

Automatic Transmission Turbine Speed Sensor


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • 2-Way F Metri-Pack 150.2 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1983

Transmission Turbine Speed Switch Signal

B

LT BLU

1984

Transmission Turbine Speed Switch Low Reference

Automatic Transmission Input Shaft Speed (AT ISS) Sensor


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • 2-Way F Metri-Pack 150.2 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

1230

AT ISS High Signal

B

DK

BLU/WHT

1231

AT ISS Low Signal

Vehicle Speed Sensor (VSS) Connector


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • 2-Way F Metri-Pack 150.2 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

822

VSS Low Signal

B

PPL/WHT

821

VSS High Signal