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: Park/Neutral Position (PNP) Switch C1
Table 4: Park/Neutral Position (PNP) Switch C2
Table 5: Transmission Control Module (TCM) C1
Table 6: Transmission Control Module (TCM) C2
Table 7: Vehicle Speed Sensor (VSS)
Table 8: Transmission Range Switch Connector, Wiring Harness Side

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 (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

1230

AT ISS High Signal

B

DK

BLU/WHT

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 (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

Park/Neutral Position (PNP) Switch C1


Object Number: 655808  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

Transmission Range Switch Signal A

B

GRY

773

Transmission Range Switch Signal C

C

WHT

776

Transmission Range Switch Signal P

D

YEL

772

Transmission Range Switch Signal B

Park/Neutral Position (PNP) Switch C2


Object Number: 535900  Size: CH

Connector Part Information

    • 12129840
    • 7-Way F Metri-Pack 150 280 (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 and 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

Transmission Control Module (TCM) C1


Object Number: 698666  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

BLK/WHT

451

Ground

2

PNK

1020

Ignition 0 Voltage

3

ORN

440

Battery Positive Voltage

4

PNK

1020

Ignition 0 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

Throttle Kickdown Signal

10

GRY/BLK

1694

4WD Low Signal

11-15

--

--

Not Used

16

TAN/BLK

464

Delivered Torque Signal (L18)

17-21

--

--

Not Used

22

ORN/BLK

463

Requested Torque Signal (L18)

23-24

--

--

Not Used

25

DK BLU

2466

Trans MIL Request Signal

26

--

--

Not Used

27

YEL

400

Signal High - Front

28

--

--

Not Used

29

YEL

2361

CAN Serial Data High

30

YEL

2470

TCM Class 2 Serial Data

31

--

--

Not Used

32

DK GRN

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 (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

VSS Signal HI

16

LT GRN/BLK

822

VSS Signal LO

17

RED/BLK

1230

AT ISS High Signal

18

DK BLU/WHT

1231

AT ISS Low Signal

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

DK BLU

1530

Modulated Main Pressure

31

BRN

323

12 Volt Reference

32

DK GRN/WHT

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 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

822

VSS Signal LO

B

PPL/WHT

821

VSS Signal HI

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

DK GRN

1433

Clutch Start Switch Signal

2

--

--

Not Used

3

ORN/BLK

1786

Park Neutral Position Switch Signal

4

YEL

772

Transmission Range Switch Signal B

5

BLK/WHT

771

Transmission Range Switch Signal A

6

GRY

773

Transmission Range Switch Signal C

7

BLK/WHT

451

Ground

8

WHT

776

Transmission Range Switch Signal P

9

LT GRN

275

Park Neutral Position Switch Voltage

10

GRY

1524

Back-up Lamp Supply Voltage

11

PNK

839

Ignition 1 Voltage

12

PPL

639

Ignition 1 Voltage