Document ID# 212597
1998 Chevrolet/Geo Corvette
 

Powertrain Control Module (PCM) Connector End Views

Table 1: PCM Connector C1 (Red)
Table 2: PCM Connector C2 (Blue)

PCM Connector C1 (Red)


1997-2004_PCM_Connector_Red.gif

Connector Part Information

  • PCM Connector C1 (Red)
  • 80 Pin Connector

Pin

Wire Color

Circuit No.

Function

1-3

 

 

Not Used

4

BRN/WHT

633

Camshaft Position Sensor Signal

5-6

 

 

Not Used

7

YEL

400

VSS Signal High

8

 

 

Not Used

9

PNK/BLK

1746

Injector #3 Control

10-11

 

 

Not Used

12

LT BLU/BLK

844

Injector #4 Control

13

PPL/WHT

2122

Injector #2 Control

14

DK GRN

59

A/C Status

15

BLK/WHT

845

Injector #5 Control

16-17

 

 

Not Used

18

YEL/BLK

846

Injector #6 Control

19-20

 

 

Not Used

21

PPL

719

IAT Sensor Ground

22

DK BLU

1225

Transmission Range Signal B

23

LT GRN/BLK

1745

Injector #2 Control

24

BLK/WHT

1704

Sensor Ground Jumper

25

PNK

1224

Transmission Range Signal A

26

BLK/WHT

771

PRND A

27

RED/BLK

877

Injector #7 Control

28-29

 

 

Not Used

30

DK BLU/WHT

449

Real Time Damping (W/F45)

31

DK BLU/WHT

878

Injector #8 Control

32

WHT

776

PRND P

33

BLK

1744

Injector #1 Control

34

GRY or WHT

587 or 687

2nd and 3rd gear Block out Solenoid (M/T) or 3-2 Shift Solenoid (A/T)

35

LT GRN

1222

Shift Solenoid A

36

 

 

Not Used

37

BRN/WHT

419

MIL Control

38

 

 

Not Used

39

DK GRN/WHT

459

A/C Clutch Relay Control

40

WHT or YEL/BLK

375 or 1223

1 to 4 Upshift Lamp Control (M/T) or Shift Solenoid B (A/T)

41

PNK/WHT

1101

PCM Chassis Pitch Output Circuit

42

LT GRN

1652

Reverse Inhibit Solenoid Control

43

DK/GRN

335

Cooling Fan Relay #1 Control

44

DK BLU/WHT

1869

Crankshaft Position Sensor Signal

45

DK GRN/WHT

428

EVAP Canister Purge Valve Control

46

ORN/BLK

463

Desired Torque

47

DK GRN/WHT

762

A/C Request Signal (C60)

48

YEL

492

MAF Signal

49

PPL

2121

Ignition #1 Control

50-51

 

 

Not Used

52

RED/WHT

2128

Ignition #8 Control

53

RED

2127

Ignition #7 Control

54

DK GRN/WHT

2126

Ignition #6 Control

55

DK GRN/WHT

817

VSS Output Signal

56

DK GRN

2125

Ignition #5 Control

57

LT BLU/WHT

2124

Ignition #4 Control

58

LT BLU

2123

Ignition #3 Control

59

BRN/WHT

2130

Ignition Control Reference Low Bank 2

60

BRN

2129

Ignition Control Reference Low Bank 1

61

RED

1226

Transmission Range Signal C

62

 

 

Not Used

63

BLK

407

A/C Refrigerant Pressure Sensor Ground

64

BLK

452

Engine Oil Pressure Sensor Ground

65

GRY

773

PRND C

66

YEL

772

PRND B

67

 

 

Not Used

68

GRY

48

Clutch Switch Signal

69

BRN

1982

EVAP Purge Vacuum Switch Signal

70

 

 

Not Used

71

PPL

401

VSS Signal Low

72

BLK/WHT

451C

PCM Ground

73

GRY

847

Extended Travel Brake Switch Signal

74

 

 

Not Used

75

GRY

720

Left and Right Fuel Tank Level Sensor Ground

76

BLK/WHT

451H

PCM Ground

77

PPL

420

Cruise/TCC Brake Switch Signal

78-80

 

 

Not Used

PCM Connector C2 (Blue)


1997-2002_PCM_Connector_Blue.gif

Connector Part Information

  • PCM Connector C2 (Blue)
  • 80 Pin Connector

Pin

Wire Color

Circuit No.

Function

1

TAN

1671

HO2S Signal Low Bank 2 Sensor 2

2

TAN/WHT

1669

HO2S Signal Low Bank 1 Sensor 2

3

 

 

Not Used

4

RED

631

Camshaft Position Sensor B+ Supply

5

TAN

1667

HO2S Signal Low Bank 2 Sensor 1

6

TAN/WHT

1653

HO2S Signal Low Bank 1 Sensor 1

7

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

8

TAN

472

IAT Sensor Signal

9

 

 

Not Used

10

DK BLU

1936

Fuel Level Sensor (Left Tank) Signal

11

GRY

23

Generator F Terminal

12

LT BLU

1937

Fuel Level Sensor (Right Tank) Signal

13

YEL/BLK

1227

Transmission Fluid Temperature Sensor Signal

14

ORN/BLK

1057

Transmission Fluid Temperature Sensor Ground

15-18

 

 

Not Used

19

PNK

239

PCM Ignition 1 Feed

20

ORN

340B

PCM Battery Feed

21

BLK/WHT

451F

PCM Ground

22

YEL/BLK

1868

Crankshaft Position Sensor Ground

23

 

 

Not Used

24

BLK/WHT

1704

Sensor Ground Jumper

25

BRN

718

ECT Sensor Ground

26

ORN/BLK

469

MAP Sensor Ground

27

 

 

Not Used

28

DK BLU

473

Engine Cooling Fan Relay #2 and #3 Control

29

 

 

Not Used

30

BRN

436

AIR Pump Relay Control

31

PPL

421

AIR Solenoid Relay Control

32

TAN/BLK

422

TCC Enable Solenoid

33

BRN

418

TCC Control (PWM) Solenoid Control

34

 

 

Not Used

35

WHT

121

Engine Speed (Tach) Output Signal

36

LT BLU/WHT

1229

Transmission Fluid Pressure Control Solenoid Control Low

37

DK GRN/WHT

465

Fuel Pump Relay Control

38

 

 

Not Used

39

RED/BLK

1228

Transmission Fluid Pressure Control Solenoid Control High

40

TAN/BLK

464

Torque Delivered

41

PPL

1670

HO2S Signal High Bank 2 Sensor 2

42

PPL/WHT

1668

HO2S Signal High Bank 1 Sensor 2

43

 

 

Not Used

44

GRY

598

Fuel Level Sensors 5.0 Volt Feed

45

GRY

596

Engine Oil Pressure Sensor 5.0 Volt Reference

46

PPL

1666

HO2S Signal High Bank 2 Sensor 1

47

PPL/WHT

1665

HO2S Signal High Bank 1 Sensor 1

48

LT GRN

432

MAP Sensor Signal

49

YEL

410

ECT Sensor Signal

50-52

 

 

Not Used

53

TAN/WHT

331

Engine Oil Pressure Sensor Signal

54-57

 

 

Not Used

58

DK GRN

1049

Serial Data Class 2

59

 

 

Not Used

60

BLK/WHT

451E

PCM Ground

61

ORN

340C

PCM Battery Feed

62

LT GRN

1867

Crankshaft Position Sensor B+ Supply

63

 

 

Not Used

64

GRY

416

MAP Sensor 5.0 Volt Reference

65

 

 

Not Used

66

GRY

474

A/C Refrigerant Pressure Sensor 5.0 Volt Reference

67

 

 

Not Used

68

LT BLU

1876

Knock Sensor (KS) Rear

69

DK BLU

496

Knock Sensor (KS) Front

70

PNK/BLK

632

Camshaft Position Sensor Ground

71

TAN

800

TAC Module Serial Data

72

ORN/BLK

1061

TAC Module Serial Data

73-75

 

 

Not Used

76

BRN

1174

Oil Level Sensor Signal

77

RED

225

Generator L Terminal

78-80

 

 

Not Used


  Document ID# 212597
1998 Chevrolet/Geo Corvette