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

Powertrain Control Module (PCM) Connector C1 Blue


Object Number: 53524  Size: CF

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

C1-01-C1-05

--

--

Not Used

C1-06

ORN/BLK

1057

Fuel Tank Pressure Sensor Ground

C1-07

BRN/WHT

633

CMP Sensor Signal

C1-08

PPL/WHT

430

CKP 7x Reference Signal

C1-09

--

--

Not Used

C1-10

GRY

705

Fuel Tank Pressure Sensor 5 Volt Reference

C1-11-C1-13

--

--

Not Used

C1-14

TAN

800

Serial Data (UART)

C1-15-C1-17

--

--

Not Used

C1-18

BLK/WHT

451

PCM Ground

C1-19

PNK

639

Ignition Positive Voltage (2)

C1-20

ORN

480

Battery Positive Voltage (B+)

C1-21

DK BLU

417

TP Sensor Signal

C1-22-C1-24

--

--

Not Used

C1-25

ORN

406

Ignition Control B

C1-26

WHT

423

Ignition Control A

C1-27

TAN/BLK

231

Engine Oil Pressure Sensor Signal

C1-28

RED

1226

Transaxle Range C Input

C1-29

BLK/WHT

771

TR Switch Input A

C1-30-C1-32

--

--

Not Used

C1-33

DK BLU

496

KS Signal

C1-34

--

--

Not Used

C1-35

PPL

420

TCC Brake Switch Input

C1-36-C1-44

--

--

Not Used

C1-45

DK GRN

890

Fuel Tank Pressure Sensor Signal

C1-46

YEL/BLK

1227

TFT Sensor Signal

C1-47-C1-48

--

--

Not Used

C1-49

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

C1-50

YEL/BLK

68

Engine Coolant Level Switch Input

C1-51

--

--

Not Used

C1-52

BLK

552

A/C Refrigerant Pressure Sensor Ground

C1-53

GRY

23

Generator Terminal F Input

C1-54

YEL

410

ECT Sensor Signal

C1-55-C1-56

--

--

Not Used

C1-57

BLK

452

TP Sensor Ground

C1-58

--

--

Not Used

C1-59

PPL

1807

Serial Data (Class II)

C1-60

TAN/WHT

551

PCM Ground

C1-61

PNK

1020

Ignition Positive Voltage (1)

C1-62

LT GRN

432

MAP Sensor Signal

C1-63

RED/BLK

1230

A/T ISS Sensor High

C1-64

YEL

400

VSS High

C1-65

--

--

Not Used

C1-66

BLK

470

EGR Valve Ground

C1-67

DK BLU

1225

Transaxle Range B Input

C1-68

PNK

1224

Transaxle Range A Input

C1-69

YEL

772

TR Switch Input B

C1-70-C1-71

--

--

Not Used

C1-72

GRY

773

TR Switch Input C

C1-73

WHT

776

TR Switch Input P

C1-74

RED

225

Generator Terminal L Output

C1-75

BLK

1744

Fuel Injector #1 Driver

C1-76

LT GRN/BLK

1745

Fuel Injector #2 Driver

C1-77-C1-80

--

--

Not Used

Powertrain Control Module (PCM) Connector C2 Black


Object Number: 53524  Size: CF

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

C2-01-C2-05

--

--

Not Used

C2-06

RED/BLK

1228

PC Solenoid High Control

C2-07

RED

1676

EGR Valve Ignition Feed

C2-08

DK GRN/WHT

465

Fuel Pump Relay Control

C2-09

LT BLU/WHT

1229

PC Solenoid Low Control

C2-10-C2-13

--

--

Not Used

C2-14

BLK/WHT

1704

MAP Sensor Ground

C2-15

--

--

Not Used

C2-16

DK GRN/WHT

817

VSS Output

C2-17-C2-18

--

--

Not Used

C2-19

BRN

1456

EGR Pintle Position Signal

C2-20

TAN

472

IAT Sensor Signal

C2-21

TAN

413

O2S 1 Low

C2-22

PPL

412

O2S 1 Signal

C2-23

TAN/WHT

1669

HO2S 2 Low

C2-24

PPL/WHT

1668

HO2S 2 Signal

C2-25-C2-26

--

--

Not Used

C2-27

BRN

718

ECT Sensor Ground

C2-28

GRY

720

IAT Sensor Ground

C2-29

BLK

407

TFT Sensor Ground

C2-30

--

--

Not Used

C2-31

RED/BLK

453

ICM Reference Low

C2-32

GRY

597

EGR Valve 5 Volt Reference

C2-33

GRY

416

TP Sensor 5 Volt Reference

C2-34

GRY

596

A/C Refrigerant Pressure Sensor 5 Volt Reference

C2-35

GRY

474

MAP Sensor 5 Volt Reference

C2-36

RED

631

CMP Sensor Battery Positive Voltage (B+)

C2-37-C2-44

--

--

Not Used

C2-45

DK GRN

83

Cruise Disable Output

C2-46

BRN/WHT

419

MIL Control

C2-47

--

--

Not Used

C2-48

LT BLU/BLK

396

Cruise Engaged Input

C2-49

YEL

657

TCC Release Switch Input

C2-50

TAN/BLK

422

TCC Solenoid Control

C2-51

YEL/BLK

1223

2-3 SS Valve Control

C2-52

--

--

Not Used

C2-53

LT GRN

1222

1-2 SS Valve Control

C2-54

DK GRN

335

Cooling Fan Relay Control

C2-55

DK GRN/WHT

459

A/C Compressor Clutch Relay Control

C2-56

DK GRN/WHT

428

EVAP Canister Purge Valve Driver

-C2

C2-57

BRN

418

TCC PWM Solenoid Valve Control

C2-58

WHT

1310

EVAP Canister Vent Solenoid Driver

C2-59-C2-60

--

--

Not Used

C2-61

PPL

401

VSS Low

C2-62

DK BLU/WHT

1231

A/T ISS Sensor Low

C2-63

PNK/BLK

632

CMP Sensor Ground

C2-64

BLK/WHT

451

PCM Ground

C2-65-C2-70

--

--

Not Used

C2-71

LT BLU/WHT

1747

IAC Coil A High

C2-72

LT GRN/WHT

1749

IAC Coil B High

C2-73

LT GRN/BLK

444

IAC Coil B Low

C2-74

LT BLU/BLK

1748

IAC Coil A Low

C2-75

LT BLU/BLK

844

Fuel Injector #4 Driver

C2-76

PNK/BLK

1746

Fuel Injector #3 Driver

C2-77-C2-80

--

--

Not Used