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 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 V Reference A

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

BLK

150

Ground

23-24

--

--

Not Used

25

ORN

406

IC Timing Control (B)

26

WHT

423

IC Timing Control

27

TAN/BLK

231

Oil Pressure Switch Signal

28

RED

1226

Transmission Fluid Pressure Switch Signal C (MX0)

29

BLK/WHT

771

Transmission Range Switch Signal A (MX0)

30-31

--

--

Not Used

32

GRY

1716

Low Refrence

33

--

--

Not Used

34

DK BLU

496

KS [1] Signal

35

PPL

420

TCC Release/ A/T Shift Lock Release Signal (MX0 w/o K34) or TCC Release/ A/T Shift Lock Release/ Cruise Control Release Signal (MX0 w/ K34) or Clutch Anticipate Signal (MM5 w/o K34) or Clutch Anticipate/ Cruise Control Release Signal (MM5 w/K34)

36-44

--

--

Not Used

45

DK GRN

890

Fuel Tank Pressure Sensor Signal

46

YEL/BLK

1227

TFT Sensor Signal (MX0)

47-48

--

--

Not Used

49

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal (C60)

50-51

--

--

Not Used

52

BLK

552

Low Reference (C60)

53

GRY

23

Generator Field Duty Cycle Signal

54

YEL

410

ECT Sensor Signal

55

PPL

1589

Fuel Level Sensor Signal

56

--

--

Not Used

57

BLK

452

Low Reference

58

PPL

1807

Class 2 Serial Data

59

PPL

1807

Class 2 Serial Data

60

TAN/WHT

551

Ground

61

--

--

Not Used

62

LT GRN

432

MAP Sensor Signal

63

RED/BLK

1230

A/T ISS Sensor High (MX0)

64

YEL

400

Signal High - Front

65-66

--

--

Not Used

67

DK BLU

1225

Transmission Fluid Pressure Switch Signal B (MX0)

68

PNK

1224

Transmission Fluid Pressure Switch Signal A (MX0)

69

YEL

772

Transmission Range Switch Signal B (MX0)

70-71

--

--

Not Used

72

GRY

773

Transmission Range Switch Signal C (MX0)

73

WHT

776

Transmission Range Switch Signal P (MX0)

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

    • 12191110
    • 80-Way Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1-5

--

--

Not Used

6

RED/BLK

1228

PC Solenoid Valve High Control (MX0)

7

--

--

Not Used

8

DK GRN/WHT

465

Fuel Pump Relay Control

9

LT BLU/WHT

1229

PC Solenoid Valve Low Control (MX0)

10-13

--

--

Not Used

14

BLK/WHT

1704

Low Reference

15

--

--

Not Used

16

DK GRN/WHT

817

Vehicle Speed Signal (K34)

17-19

--

--

Not Used

20

TAN

472

IAT Sensor Signal

21

TAN

413

O2S Low Signal

22

PPL

412

O2S High Signal

23

TAN/WHT

1669

HO2S Low Signal

24

PPL/WHT

1668

HO2S High Signal

25-26

--

--

Not Used

27

BRN

718

Low Reference

28

GRY

720

Low Reference

29

BLK

407

Low Reference (MX0)

30

--

--

Not Used

31

RED/BLK

453

Low Reference

32

--

--

Not Used

33

GRY

416

5 V Reference A

34

GRY

596

5 V Reference A (C60)

35

GRY

474

5 V Reference B

36

RED

631

12 Volt Reference

37-44

--

--

Not Used

45

DK GRN

83

Cruise Control Inhibit Signal (K34)

46

BRN/WHT

419

MIL Control

47

--

--

Not Used

48

LT BLU/BLK

396

Cruise Control Engaged Signal (K34)

49

YEL

657

TCC Release Switch Signal (MX0)

50

--

--

Not Used

51

YEL/BLK

1223

2-3 Shift Solenoid Valve Control (MX0)

52

--

--

Not Used

53

LT GRN

1222

1-2 Shift Solenoid Valve Control (MX0)

54

DK GRN

335

Cooling Fan Relay Control

55

DK GRN/WHT

459

A/C Compressor Clutch Relay Control (C60)

56

DK GRN/WHT

428

EVAP Canister Purge Solenoid Control

57

BRN

418

TCC PWM Solenoid Valve Control (MX0)

58

WHT

1310

EVAP Canister Vent Solenoid Control

59-60

--

--

Not Used

61

PPL

401

Signal Low - Front

62

DK BLU/WHT

1231

A/T ISS Sensor Low (MX0)

63

PNK/BLK

632

Low Reference

64

BLK/WHT

451

Ground

65-70

--

--

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