GM Service Manual Online
For 1990-2009 cars only
Table 1: PCM Connector C1
Table 2: PCM Connector C2

PCM Connector C1


Object Number: 15026  Size: CF

Connector Part Information

    • PCM 80-way C-1
        TPA (BLU)
    • Connector Body
        12182654

Pin

Wire Color

Circuit No.

Function

1

BLK

407

Transaxle Fluid Temperature Sensor Ground

2-3

--

--

Not Used

4

LT GRN

1222

1-2 Shift Solenoid Control

5

DK BLU

473

High Speed Fans Control

6

DK GRN

335

Low Speed Fans Control

7

BRN/WHT

633

Camshaft Position Sensor Signal

8

PPL/WHT

430

3X Reference High

9

LT BLU/BLK

647

24X CKP Sensor Signal

10

GRY

474

MAP Sensor 5V Reference A

11

--

--

Not Used

12

BLK

452

ECT Sensor Ground

13

BLK/WHT

1704

MAP Sensor Ground

14-15

--

--

Not Used

16

BLK/WHT

451

PCM Ground

17

GRY

720

IAT Sensor Ground

18

--

--

Not Used

19

PPL

1500

Ignition Positive Voltage

20

ORN

480

Battery Positive Voltage

21

--

--

Not Used

22

PNK

1224

Transmission Fluid Pressure Switch A Input

23-27

--

--

Not Used

28

TAN/WHT

1669

HO2S Sensor 2 Signal Low

29

TAN

413

HO2S Sensor 1 Signal Low

30

PPL

420

TCC Brake Switch

31

BLK

470

EGR Pintle Position Sensor Ground

32

GRY/BLK

435

EGR Control Ground

33

DK BLU

496

KS Signal

34-37

--

--

Not Used

38

LT GRN/WHT

1749

IAC B High

39-42

--

--

Not Used

43

BLK

1744

Fuel Injector #1 Control

44

YEL/BLK

1223

Shift Solenoid B Control (2-3 Shift Solenoid Control Valve)

45

--

--

Not Used

46

PNK/BLK

1746

Fuel Injector #3 Control

47

LT GRN/BLK

1745

Fuel Injector #2 Control

48

RED/BLK

453

IC Control

49-52

--

--

Not Used

53

TAN/BLK

424

Bypass

54

WHT

423

Ignition Control (IC)

55

DK GRN/WHT

817

Vehicle Speed Signal Output

56

BLK/WHT

451

PCM Ground

57

BLK/WHT

451

PCM Ground

58

--

--

Not Used

59

PPL

1807

Class II Serial Data

60

BLK / WHT

451

PCM Ground

61

BLK

452

TP Sensor Ground

62

DK BLU/WHT

1231

Automatic Transmission Input (Shaft) Speed Sensor (AT ISS Sensor) Low

63

RED/BLK

1230

Automatic Transmission Input (Shaft) Speed Sensor (AT ISS Sensor) High

64

YEL

400

VSS High

65

PPL

401

VSS Low

66-67

--

--

Not Used

68

YEL

772

Transaxle Range Switch B

69

YEL

492

MAF Sensor Signal

70-71

--

--

Not Used

72

DK GRN

83

Cruise Disable/Inhibit Control

73

BLK/WHT

845

Fuel Injector #5 Control

74-75

--

--

Not Used

76

DK GRN/WHT

428

EVAP Canister Purge Valve Control

77-78

--

--

Not Used

79

YEL/BLK

546

Fuel Injector #6 Control

80

BLK

552

A/C Pressure Sensor Ground

PCM Connector C2


Object Number: 15030  Size: CF

Connector Part Information

    • PCM 80-way C-2
        TPA (CLR)
    • Connector Body
        12182654

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

WHT

1310

EVAP Canister Vent Valve Solenoid Control

3

DK GRN/WHT

465

Fuel Pump Relay Control

4

RED

1676

EGR Valve Control

5

BRN/WHT

419

MIL Control

6

--

--

Not Used

7

LT BLU/WHT

1747

IAC A High

8

WHT

121

Tachometer Control

9

--

--

Not Used

10

PPL

412

HO2S Sensor 1 Signal

11

PPL/WHT

1668

HO2S Sensor 2 Signal

12-15

--

--

Not Used

16

WHT

776

Transaxle Range Switch P

17

RED

1226

Transaxle Range C Input

18

BLK/WHT

771

Transaxle Range Switch A

19

TAN/BLK

231

Engine Oil Pressure Switch Signal

20-21

--

--

Not Used

22

DK GRN/WHT

762

A/C Request

23

--

--

Not Used

24

PNK

639

Ignition Positive Voltage (Hot in Run / Crank)

25

LT GRN

432

MAP Sensor Signal

26

YEL

410

ECT Sensor Signal

27

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

28

BRN/WHT

1456

EGR Pintle Position Signal

29

GRY

23

Generator F Terminal Monitor

30

GRY

597

EGR 5V Reference A

31

--

--

Not Used

32

GRY

705

FTP Sensor 5V Reference A

33

GRY

416

TP Sensor 5 Volt Reference A

34

GRY

596

A/C Refrigerant Pressure Sensor 5 Volt Reference B

35

ORN/BLK

1057

FTP Sensor Ground

36-38

--

--

Not Used

39

DK GRN/WHT

459

A/C Compressor Clutch Relay Control

40-41

--

--

Not Used

42

LT BLU/BLK

844

Fuel Injector #4 Control

43

--

--

Not Used

44

LT BLU/BLK

1748

IAC Valve A Low

45

RED/BLK

1228

Pressure Control Solenoid High

46

LT BLU/WHT

1229

Pressure Control Solenoid Low

47-48

--

--

Not Used

49

LT GRN/BLK

444

IAC Valve B Low

50

TAN

472

Intake Air Temperature (IAT) Sensor

51-54

--

--

Not Used

55

DK GRN

890

Fuel Tank Pressure (FTP) Sensor Signal

56

GRY

773

Transaxle Range Switch C

57

DK BLU

1225

Transmission Fluid Pressure Switch B

58

BRN

1174

Engine Oil Level Switch Input

59

LT BLU/BLK

396

Cruise Status

60

--

--

Not Used

61

RED

225

Generator L Terminal Control

62

--

--

Not Used

63

YEL

657

Transaxle TCC Release Switch Input

64-65

--

--

Not Used

66

DK BLU

417

TP Sensor Signal

67

--

--

Not Used

68

YEL/BLK

1227

Transaxle Fluid Temperature (TFT) Sensor

69

--

--

Not Used

70

LT GRN

1867

24X CKP Sensor Ignition Positive Voltage

71

--

--

Not Used

72

RED

631

CMP Sensor Ignition Positive Voltage

73

PNK/BLK

632

CMP Sensor Ground

74

YEL/BLK

1868

24X CKP Sensor Ground

75-77

--

--

Not Used

78

BRN

418

TCC PWM Solenoid Control

79-80

--

--

Not Used