GM Service Manual Online
For 1990-2009 cars only
Table 1: Powertrain Control Module (PCM) Connector C1
Table 2: Powertrain Control Module (PCM) Connector C2

Powertrain Control Module (PCM) Connector C1


Object Number: 15026  Size: CF

Connector Part Information

    • 1219111
    •  80-Way F Micro-Pack
    • 100 W Series, Sealed (BLU)

Pin

Wire Color

Circuit No.

Function

1

WHT/BLK

2762

Transmission Fluid Temperature (TFT) Sensor Ground

2-3

--

--

Not Used

4

LT GRN

1222

1-2 Shift Solenoid Valve

5

DK BLU

473

High Speed Fans Control

6

DK GRN

335

Low Speed Fans Control

7

BRN/WHT

633

CMP Sensor Signal

8

PPL/WHT

430

3X Reference High

9

LT BLU/BLK

647

24X CKP Signal

10

BRN

2704

MAP Sensor 5 Volt Reference A

11-12

--

--

Not Used

13

ORN/ BLK

469

MAP/ECT Sensor Ground

14-15

--

--

Not Used

16

BLK/WHT

451

PCM Ground

17

BLK

2760

IAT Sensor Ground

18

--

--

Not Used

19

PPL

1500

Ignition Wake Up

Ignition Positive Voltage (Hot in Run/Accy/Start)

20

ORN

480

Battery Positive Voltage

21

--

--

Not Used

22

PNK

1224

Trans Fluid Pressure Switch A

23

--

--

Not Used

24

--

--

Not Used

25-27

--

--

Not Used

28

TAN/WHT

1669

HO2S 2 Low

29

TAN

413

HO2S 1 Low

30

PPL

420

TCC Brake Switch Input

31

BLK

2753

EGR Pintle Position Sensor Ground

32

GRY

435

EGR Valve Control

33

DK BLU

496

Knock Sensor (KS) Signal

34-37

--

--

Not Used

38

LT GRN/WHT

1749

IAC Valve B High

39-42

--

--

Not Used

43

BLK

1744

Fuel Injector #1 Control

44

YEL/BLK

1223

2-3 Shift Solenoid Valve

45

PNK/BLK

429

AIR Valve Control (w/California Emmissions)

46

PNK/BLK

1746

Fuel Injector #3 Control

47

LT GRN/BLK

1745

Fuel Injector #2 Control

48

RED/BLK

453

3X Reference Low

49-52

--

--

Not Used

53

TAN/BLK

424

Bypass Control

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

PPL

1807

Class ll

59

--

--

Not Used

60

BLK/WHT

451

PCM Ground

61

BLK

2752

TP Sensor Ground

62

DK BLU/WHT

1231

Automatic Transaxle Input Shaft Speed (A/T ISS) Low

63

RED/BLK

1230

Automatic Transaxle Input Shaft Speed (A/T ISS) 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 Purge Valve Control

77-78

--

--

Not Used

79

YEL/BLK

846

Fuel Injector #6 Control

80

BLK

2751

AC Pressure Sensor Ground

Powertrain Control Module (PCM) Connector C2


Object Number: 15030  Size: CF

Connector Part Information

    • 12191111
    • 80-Way F Micro-Pack
    • 100 W Series, Sealed (CLR)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

WHT

1310

EVAP Vent Solenoid Valve Control

3

DK GRN/WHT

465

Fuel Pump Relay Control

4

RED

1676

EGR Valve Ignition Positive Voltage

5

BRN/WHT

419

MIL Control

6

--

--

Not Used

7

LT BLU/WHT

1747

IAC Valve A High

8-9

--

--

Not Used

10

PPL

412

HO2S 1 Signal

11

PPL/WHT

1668

HO2S 2 Signal

12-15

--

--

Not Used

16

WHT

776

Transaxle Range Switch P

17

RED

1226

Trans Fluid Pressure Switch C

18

BLK/WHT

771

Transaxle Range Switch A

19

TAN/BLK

231

Engine Oil Pressure Switch Input

20-22

--

--

Not Used

23

--

--

Not Used

24

PNK

239

Ignition Positive Voltage (Hot in Run/Bulb Test/Start)

25

LT GRN

432

MAP Sensor Signal

26

YEL

410

ECT Sensor Signal

27

RED/BLK

380

A/C Pressure Sensor Signal

28

BRN

1456

EGR Pintle Position Signal

29

GRY

23

Generator F Terminal Monitor

30

BRN/WHT

2702

EGR Valve 5 Volt Reference A

31

--

--

Not Used

32

GRY

2709

FTP Sensor 5 Volt Reference A

33

GRY/BLK

2701

TP Sensor 5 Volt Reference A

34

GRY

2700

A/C Pressure Sensor 5 Volt Reference B

35

BLK

2759

FTP/Fuel Level Sensor Ground

36-38

--

--

Not Used

39

DK GRN/WHT

459

A/C Compressor 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

IAT Sensor Signal

51-54

--

--

Not Used

55

DK GRN

890

FTP Sensor Signal

56

GRY

773

Transaxle Range Switch C

57

DK BLU

1225

Trans Fluid Pressure Switch B

58

BRN

1174

Engine Oil Level Switch Input

59

LT BLU/BLK

396

Cruise Engaged Input

Cruise Status

60

--

--

Not Used

61

RED

225

Generator L Terminal Control

62

--

--

Not Used

63

YEL

657

TCC Brake 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 Signal

69

PPL

1589

Fuel Level Sensor Input

70

RED/WHT

812

24X CKP Sensor Battery Positive Voltage

71

--

--

Not Used

72

RED/WHT

812

CMP Sensor Battery Positive Voltage

73

BLK

407

CMP Sensor Ground

74

BLK

407

CKP Sensor Ground

75

BRN

436

AIR Relay Control (w/California Emmissions)

76

--

--

Not Used

77

--

--

Not Used

78

BRN

418

TCC PWM Solenoid Control

79-80

--

--

Not Used