GM Service Manual Online
For 1990-2009 cars only
Table 1: Automatic Transmission Input Speed (AT ISS) Sensor
Table 2: Automatic Transmission Turbine Speed Sensor
Table 3: Transmission Range Switch Connector, Wiring Harness Side
Table 4: Transmission Control Module (TCM) C1
Table 5: Transmission Control Module (TCM) C2
Table 6: Vehicle Speed Sensor (VSS)

Automatic Transmission Input Speed (AT ISS) Sensor


Object Number: 237066  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

RD/BK

1230

Automatic Transmission Input Shaft Speed (AT ISS) High Signal

B

D-BU/WH

1231

AT ISS Low Signal

Automatic Transmission Turbine Speed Sensor


Object Number: 237066  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

OG

1983

Transmission Turbine Speed Switch Signal

B

L-BU

1984

Transmission Turbine Speed Switch Low Reference

Transmission Range Switch Connector, Wiring Harness Side


Object Number: 901402  Size: CH

Connector Part Information

    • 15416722 BK
    • ASM Conn 12 F GT

Pin

Wire Color

Circuit No.

Function

1

D-GN

1433

Clutch Start Switch Signal

2

--

--

Not Used

3

OR/BK

1786

Park Neutral Position Switch Signal

4

YE

772

Transmission Range Switch Signal B

5

BK/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

L-GN

275

Park Neutral Position Switch Voltage

10

GY

1524

Back-up Lamp Supply Voltage

11

PK

839

Ignition 1 Voltage

12

PU

639

Ignition 1 Voltage

Transmission Control Module (TCM) C1


Object Number: 698666  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

BK/WH

451

Ground

2

PK

1020

Ignition 0 Voltage

3

OG

440

Battery Positive Voltage

4

PK

1020

Ignition 0 Voltage

5

BK/WH

451

Ground

6

YE

2522

Power Take-Off (PTO) Reference Voltage

7

PU

420

Torque Converter Clutch (TCC) Brake Switch/Cruise Control Release Signal

8

--

--

Not Used

9

WH

2467

Throttle Kickdown Signal

10

GY/BK

1694

4WD Low Signal

11-15

--

--

Not Used

16

TN/BK

464

Delivered Torque Signal (L18)

17-21

--

--

Not Used

22

OG/BK

463

Requested Torque Signal (L18)

23-24

--

--

Not Used

25

D-BU

2466

Trans MIL Request Signal

26

--

--

Not Used

27

YE

400

Signal High - Front

28

--

--

Not Used

29

YE

2361

Computer Area Network (CAN) Serial Data High

30

YE

2470

Transmission Control Module (TCM) Class 2 Serial Data

31

--

--

Not Used

32

D-GN

2362

CAN Serial Data Low

Transmission Control Module (TCM) C2


Object Number: 698666  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

PK

1224

Fluid Pressure Switch Signal C

2

D-BU

1225

Fluid Pressure Switch Signal D

3

RD

1226

Fluid Pressure Switch Signal E

4

L-GN/BK

2529

Fluid Pressure Switch Reverse Signal

5

BK/WH

771

Transmission Range Switch Signal A

6

YE

772

Transmission Range Switch Signal B

7

GY

773

Transmission Range Switch Signal C

8

WH

776

Transmission Range Switch Signal P

9

--

--

Not Used

10

YE/BK

1227

Transmission Fluid Temperature (TFT) Sensor Signal

11-12

--

--

Not Used

13

OG

1983

Transmission Turbine Speed Switch Signal

14

L-BU

1984

Transmission Turbine Speed Switch Low Reference

15

PU/WH

821

Vehicle Speed Sensor (VSS) Signal HI

16

L-GN/BK

822

VSS Signal LO

17

RD/BK

1230

Automatic Transmission Input Shaft Speed (AT ISS) High Signal

18

D-BU/WH

1231

AT ISS Low Signal

19

--

--

Not Used

20

BK

2762

Low Reference

21

PU

2471

Trans ID

22

L-BU/WH

1229

Pressure Control (PC) Solenoid A Valve High Control

23

RD/BK

1228

Pressure Control (PC) Solenoid A Valve Low Control

24

PK/BK

2468

Pressure Control (PC) Solenoid B Valve High Control

25

BN/WH

2469

Pressure Control (PC) Solenoid B Valve Low Control

26

L-GN

1222

Shift Solenoid C Valve Control

27

YE/BK

1223

Shift Solenoid D Valve Control

28

OG/WH

2527

Shift Solenoid E Valve Control

29

BN

418

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

30

D-BU

1530

Modulated Main Pressure

31

BN

323

12 Volt Reference

32

D-GN/WH

2528

TCC PWM Solenoid Supply Voltage

Vehicle Speed Sensor (VSS)


Object Number: 237066  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

822

Vehicle Speed Sensor (VSS) Signal LO

B

PU/WH

821

VSS Signal HI