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

Powertrain Control Module (PCM), C1


Object Number: 53524  Size: CF

Connector Part Information

    • 12191110
    • 80-Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

1-5

--

--

Not Used

6

BLK

2759

Low Reference

7

BRN/WHT

633

CMP Sensor Signal

8

PPL/WHT

430

Low Resolution Engine Speed Signal

9

--

--

Not Used

10

GRY

2709

5 Volt Reference

11-17

--

--

Not Used

18

BLK/WHT

451

Ground

19

PNK

639

Ignition 1 Voltage

20

ORN

480

Battery Positive Voltage

21

DK BLU

417

TP Sensor Signal

22-24

--

--

Not Used

25

ORN

406

Ignition Control Output 2-3

26

WHT

423

IC Timing Control

27

TAN/BLK

231

Oil Pressure Switch Signal

28

RED

1226

Transmission Fluid Pressure Switch Signal C (Automatic Transmission Only)

29

BLK/WHT

771

Transmission Range Switch Signal A (Automatic Transmission Only)

30-31

--

--

Not Used

32

GRY

1716

KS Reference Low

33

--

--

Not Used

34

DK BLU

496

KS (1) Signal

35

PPL

420

TCC Brake Switch Signal (Automatic Transmission Only)

35

BRN/WHT

379

CPP Switch Signal (Manual Transmission Only)

36-44

--

--

Not Used

45

DK GRN

890

Fuel Tank Pressure Sensor Signal

46

YEL/BLK

1227

TFT Sensor Signal (Automatic Transmission Only)

47-48

--

--

Not Used

49

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

50-51

--

--

Not Used

52

BLK

2751

Low Reference

53

GRY

23

Generator Field Duty Circle Signal

54

YEL

410

ECT Sensor Signal

55

PPL

1589

Fuel Level Sensor Signal (- Primary)

56

--

--

Not Used

57

BLK

2752

Low Reference

58

--

--

Not Used

59

PPL

1807

Class 2 Serial Data (Primary)

60

BLK/WHT

451

Ground

61

PPL

1500

Ignition 0 Voltage

62

LT GRN

432

MAP Sensor Signal

63

RED/BLK

1230

A/T ISS High Signal (Automatic Transmission Only)

64

YEL

400

Signal High - Front

65-66

--

--

Not Used

67

DK BLU

1225

Transmission Fluid Pressure Switch Signal B (Automatic Transmission Only)

68

PNK

1224

Transmission Fluid Pressure Switch Signal A (Automatic Transmission Only)

69

YEL

772

Transmission Fluid Pressure Switch Signal B (Automatic Transmission Only)

70-71

--

--

Not Used

72

GRY

773

Transmission Fluid Pressure Switch Signal C (Automatic Transmission Only)

73

WHT

776

Transmission Fluid Pressure Switch Signal P (Automatic Transmission Only)

74

RED

225

Generator Turn On Signal

75

BLK

1744

Fuel Injector 1 Control

76

LT GRN/BLK

1745

Fuel Injector 2 Control

77-80

--

--

Not Used

Powertrain Control Module (PCM), C2


Object Number: 53524  Size: CF

Connector Part Information

    • 12191111
    • 80-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1-5

--

--

Not Used

6

RED/BLK

1228

PC Solenoid Valve High Control (Sol. A) (Automatic Transmission Only)

7

--

--

Not Used

8

DK GRN/WHT

465

Fuel Pump Relay Control ( - Primary)

9

LT BLU/WHT

1229

PC Solenoid Valve Low Control (Sol. A) (Automatic Transmission Only)

10-13

--

--

Not Used

14

ORN/BLK

469

Low Reference

15

--

--

Not Used

16

DK GRN/WHT

817

Vehicle Speed Signal

17-19

--

--

Not Used

20

TAN

472

IAT Sensor Signal

21

TAN

413

HO2S Low Signal

22

PPL

412

Pre - Converter O2S 1 Signal

23

TAN/WHT

1669

HO2S Low Signal (- Bank 1 Sensor 2

24

PPL/WHT

1668

HO2S High Signal (- Bank 1 Sensor 2

25-26

--

--

Not Used

27

BLK/WHT

2761

Low Reference

28

BLK

2760

Low Reference

29

WHT/BLK

2762

Low Reference (Automatic Transmission Only)

30

--

--

Not Used

31

RED/BLK

453

Low Reference

32

--

--

Not Used

33

GRY/BLK

2701

5 Volt Reference

34

GRY

2700

5 Volt Reference

35

BRN

2704

5 Volt Reference

36

RED

631

12 Volt Reference

37-44

--

--

Not Used

45

DK GRN

83

Cruise Control Inhibit Signal

46

BRN/WHT

419

MIL Control

47

--

--

Not Used

48

LT BLU/BLK

396

Cruise Control Engaged Signal

49

YEL

657

TCC Release Switch Signal (Automatic Transmission Only)

50

--

--

Not Used

51

YEL/BLK

1223

(2-3 Shift Solenoid) Valve Control (Automatic Transmission Only)

52

--

--

Not Used

53

LT GRN

1222

(1-2 Shift Solenoid) Valve Control (Automatic Transmission Only)

54

DK GRN

335

Low Speed Cooling Fan Relay Control

55

DK GRN/WHT

459

A/C Clutch Relay Control

56

DK GRN/WHT

428

EVAP Canister Purge Solenoid Control

57

BRN

418

TCC PWM Solenoid Valve Control (Automatic Transmission Only)

58

WHT

1310

EVAP Canister Vent Solenoid Control

59

DK BLU

473

High Speed Cooling Fan Relay Control

60

--

--

Not Used

61

PPL

401

Signal Low - Front

62

DK BLU/WHT

1231

A/T ISS Low Signal (Automatic Transmission Only)

63

PNK/BLK

632

Low Reference

64

BLK/WHT

451

Ground

65

BARE

1792

Drain Wire

66-70

--

--

Not Used

71

LT BLU/WHT

1747

IAC Coil A High Control

72

LT GRN/WHT

1749

IAC Coil B High Control

73

LT GRN/BLK

444

IAC Coil B Low Control

74

LT BLU/BLK

1748

IAC Coil A Low Control

75

LT BLU/BLK

844

Fuel Injector #4 Control

76

PNK/BLK

1746

Fuel Injector #3 Control

77-80

--

--

Not Used