GM Service Manual Online
For 1990-2009 cars only
Table 1: PCM 80-Way Blue Connector C1 Details
Table 2: PCM 80-Way Clear Connector C2 Details

PCM 80-Way Blue Connector C1 Details


Object Number: 15026  Size: CF

Connector Part Information

    • Blue PCM Connector C1
    • Body - 12160549
    • TPA - 12160569
    • Terminals - 12084913
    • Shield - 12160921

Pin

Wire Color

Circuit No.

Function

1

BLK

2762

Sensor Ground

2

--

--

Not Used

3

ORN

55

Fuel Level Output

4

LT GRN

1222

1 - 2 Shift Solenoid Valve Control

5

DK BLU

473

Fan 2 Control (High Speed)

6

DK GRN

335

Fan 1 Control (Low Speed)

7

BLK

630

Camshaft Position PCM Input

8

PPL/WHT

430

3X Reference

9

LT BLU/BLK

647

24X Reference

10

GRY

2704

5 Volt Reference

11

--

--

Not Used

12

BLK

2761

ECT Sensor Ground

13

ORN/BLK

469

MAP Sensor Ground

14

--

--

Not Used

15

TAN

800

Serial Data

16

BLK/WHT

451

PCM Ground

17

BLK

2760

IAT Ground

18

--

--

Not Used

19

PNK

439

Ignition Positive Voltage

20

ORG

540

Battery Feed

21

--

--

Not Used

22

PNK

1224

Trans 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

2753

EGR Valve Ground

32

GRY

435

EGR Valve Ground

33

DK BLU

496

KS Signal

34-35

--

--

Not Used

36

BRN

25

Charge Indicator Control

37

--

--

Not Used

38

LT GRN/WHT

1749

IAC B High

39-42

--

--

Not Used

43

BLK

1744

Injector Number 1 Control

44

YEL/BLK

1223

2 - 3 Shift Solenoid Valve Control

45

--

--

Not Used

46

PNK/BLK

1746

Injector Number 3 Control

47

LT GREEN/BLK

1745

Injector Number 2 Control

48

RED/BLK

453

Reference Low

49-52

--

--

Not Used

53

TAN/BLK

424

Bypass

54

WHT

423

Ignition Control (IC)

55

DK GRN

389

Vehicle Speed Signal Output

56

BLK/WHT

451

PCM Ground

57

BLK/WHT

451

PCM Ground

58

--

--

Not Used

59

PPL

1807

Class 2 Data

60

BLK/WHT

451

PCM Ground

61

BLK

552

TP Ground

62

Blu/WHT

1231

AT/ISS Sensor Low

63

RED/BLK

1230

AT/ISS Sensor High

64

YEL

400

VSS High

65

PPL

401

VSS Low

66-67

--

--

Not Used

68

YEL

772

Transaxle Range Switch Input B

69

YEL

492

MAF Sensor Input

70

DK BLU

229

Theft Deterrent Input

71

ORN/BLK

463

Required Torque

72

DK GRN

83

Cruise Disable Output

73

BLK/WHT

845

Injector Number 5 Control

74

--

--

Not Used

75

DK GRN

35

Engine Coolant Indicator Control

76

DK GRN/WHT

428

EVAP Canister Purge Valve Control

77-78

--

--

Not Used

79

YEL/BLK

846

Injector Number 6 Control

80

BLK

2751

A/C Pressure Return

PCM 80-Way Clear Connector C2 Details


Object Number: 15030  Size: CF

Connector Part Information

    • Clear PCM Connector C2
    • Body - 12160549
    • TPA - 1216056A
    • Terminals - 12084913
    • Shield - 12160921

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

WHT

1310

EVAP Canister Vent Valve

3

DK GRN/WHT

465

Fuel Pump Relay Control

4

RED

1676

EGR Valve Control

5

BRN/WHT

419

MIL Control

6

BRN/WHT

1173

Low Oil Level Indicator Control

7

LT BLU/WHT

1747

IAC A High

8

WHT

121

Tachometer Indicator Control

9

TAN/BLK

464

Delivered Torque

10

PPL

412

HO2S Sensor 1 Signal High

11

PPL/WHT

1668

HO2S Sensor 2 Signal High

12-15

--

--

Not Used

16

WHT

776

Transaxle Range Parity Input

17

RED

1226

Trans Fluid Pressure Switch C Input

18

BLK/WHT

771

Transaxle Range A Input

19-21

--

--

Not Used

22

DK GRN/WHT

762

A/C Request

23-24

--

--

Not Used

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

1456

EGR Solenoid Position Signal

29

--

--

Not Used

30

GRY

2702

5 Volt Reference

31-32

--

--

Not Used

33

GRY

2701

5 Volt Reference A

34

GRY

2700

5 Volt Reference B

35

ORN

2759

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 Injection 4 Control

43

--

--

Not Used

44

LT BLU/BLK

1748

IAC Valve A Low

45

RED/BLK

1228

PC Solenoid

46

LT BLU/WHT

1229

PC Solenoid Valve Low

47-48

--

--

Not Used

49

LT GRN/BLK

444

IAC Valve B Low

50

TAN

472

Intake Air Temperature Sensor

51-54

--

--

Not Used

55

DK GRN

890

Fuel Tank Pressure Sensor Signal

56

GRY

773

Transaxle Range C Input

57

DK BLU

1225

Trans Fluid Pressure Switch B input

58

BRN

1174

Engine Oil Level Indicator Input

59

WHT

85

Cruise Status

60

--

--

Not Used

61

RED

225

Generator Control

62

--

--

Not Used

63

PNK

657

TCC Release Switch Input

64-65

--

--

Not Used

66

DK BLU

417

Throttle Position Sensor Signal

67

--

--

Not Used

68

YEL/BLK

1227

Transaxle Fluid Temperature Sensor

69

PPL

1589

Fuel Level Sensor Input

70

LT GRN

1867

CMP/CKP Sensor Ground

71

--

--

Not Used

72

RED/WHT

812

CMP/CKP Sensor Battery Positive Voltage

73

BLK

407

CMP/CKP Sensor Ground

74

YEL/BLK

1868

CMP/CKP Sensor Battery Positive Voltage

75-77

--

--

Not Used

78

BRN

418

TCC PWM Solenoid Control

79-80

--

--

Not Used