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: 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

IC Timing Control

26

WHT

423

IC Timing Control

27

TAN/BLK

231

Oil Pressure Switch Signal

28

RED

1226

Transmission Fluid Pressure Switch Signal C

29

BLK/WHT

771

Transmission Range Switch Signal A

30-32

--

--

Not Used

33

DK BLU

496

KS (1) Signal

34

--

--

Not Used

35

PPL

420

TCC Brake Switch Signal

36-44

--

--

Not Used

45

DK GRN

890

Fuel Tank Pressure Sensor Signal

46

YEL/BLK

1227

TFT Sensor Signal

47-48

--

--

Not Used

49

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

50-51

--

--

Not Used

52

BLK

552

Low Reference

53

GRY

23

Generator Field Duty Cycle Signal

54

YEL

410

ECT Sensor Signal

55

PPL

1589

Fuel Level Sensor Signal (-Primary)

56

--

--

Not Used

57

BLK

452

Low Reference

58

PPL

1807

Class 2 Serial Data (Primary)

59

PPL

1807

Class 2 Serial Data (Primary)

60

TAN/WHT

551

Ground

61

--

--

Not Used

62

LT GRN

432

MAP Sensor Signal

63

RED/BLK

1230

AT ISS High Signal

64

YEL

400

VSS High Signal

65-66

--

--

Not Used

67

DK BLU

1225

Transmission Fluid Pressure Switch Signal B

68

PNK

1224

Transmission Fluid Pressure Switch Signal A

69

YEL

772

Transmission Range Switch Signal B

70-71

--

--

Not Used

72

GRY

773

Transmission Range Switch Signal C

73

WHT

776

Transmission Range Switch Signal P

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) Connector C2


Object Number: 53524  Size: CF

Connector Part Information

    • 12191110
    • 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)

7

--

--

Not Used

8

DK GRN/WHT

465

Fuel Pump Relay Control

9

LT BLU/WHT

1229

PC Solenoid Valve Low Control (Sol. A)

10-13

--

--

Not Used

14

BLK/WHT

1704

Low Reference

15

--

--

Not Used

16

DK GRN/WHT

817

VSS Signal

17-19

--

--

Not Used

20

TAN

472

IAT Sensor Signal

21

TAN

413

HO2S Low Signal

22

PPL

412

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

30

--

--

Not Used

31

RED/BLK

453

Low Reference

32

--

--

Not Used

33

GRY

416

5 Volt Reference

34

GRY

596

5 Volt Reference

35

GRY

474

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

50

TAN/BLK

422

TCC Solenoid Valve Control

51

YEL/BLK

1223

(2-3 Shift Solenoid or Shift Solenoid B) Valve Control (With MX1)

52

--

--

Not Used

53

LT GRN

1222

(1-2 Shift Solenoid or Shift Solenoid A) Valve Control

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

58

WHT

1310

EVAP Canister Vent Solenoid Control

59-60

--

--

Not Used

61

PPL

401

VSS Low Signal

62

DK BLU/WHT

1231

AT ISS Low Signal

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