Hummer H1 (2006+). Manual — part 163

OBD-496

On-Board Diagnostics

_____________________________________________

38 WAY ENGINE CONNECTOR HARNESS LOCATION: ON TOP OF ENGINE

C1

211

YL

SAE J1939 CAN HI

C2

C3

106

GY

EGR valve (5 volt signal)

C4

108

OR/BK

EGR valve high control

C5

109

LG/BK

EGR valve low control

C6

614

GY

MAP sensor (5 volt signal)

C7

616

OR/BK

MAP

C8

615

LG

MAP sensor signal

PIN

CKT

COLOR

DESCRIPTION

A1

239

PK

Engine ignition feed

A2

A3

A4

1042

RD

Ignition 1 voltage

A5

1042

RD

Ignition 1 voltage

A6

A7

623

YL

Engine coolant temperature signal

A8

624

GY

Coolant temperature sensor

B1

631

LG/BK

Fuel injector 2 request

B2

636

RD/BK

Injector 7 request

B3

254

RD

CAM sensor (5 volt signal)

B4

253

BR/WH

Cam sensor signal ref 4X

B5

156

PK/BK

Cam sensor ground

B6

B7

B8

258

YL/BK

Crank sensor

B9

256

DB/WH

Crank sensor signal

B10

257

LG

Crank shaft sensor signal

PIN

CKT

COLOR

DESCRIPTION

PIN A1

PIN B1

PIN C1

PIN D1

PIN A8

PIN B12

PIN C12

PIN D8

CAV A8

CAV B12

CAV C12

CAV D8

CAV A1

CAV B1

CAV C1

CAV D1

C82 MALE

C82 FEMALE

_____________________________________________

On-Board Diagnostics OBD-497

5745804

38 WAY TRANSMISSION CONNECTOR HARNESS LOCATION: ON DRIVERS SIDE OF ENGINE

B11

635

YL/BK

Fuel injector 6 request

B12

632

PK/BK

Injector 3 request

C1

630

BK

Fuel injector 1 request

C2

634

BK/WH

Injector 5 request

C3

508

TN

Fuel rail pressure sensor (5 volt signal)

C4

507

OR/BK

Fuel rail pressure signal

C5

509

YL

Fuel pressure regulator sensor signal

C6

C7

C8

660

LB

57x signal to the FICM

C9

511

YL

Fuel pressure regulator solenoid control

C10

510

PP/WH

Fuel pressure regulator solenoid control

C11

637

DB/BK

Fuel injector 8 request

C12

633

LB/BK

Injector 4 request

D1

324

YL

Fuel temperature sensor signal

D2

252

BR

Fuel temperature sensor

D3

D4

D5

D6

619

TN/WH

Oil pressure sensor signal

D7

618

BK

Engine oil pressure

D8

617

GY

Engine oil pressure (5 volt signal)

PIN

CKT

COLOR

DESCRIPTION

A1

769

DB

Fluid pressure switch signal C

A2

770

PK

Fluid pressure switch signal D

A3

771

WH

Fluid pressure switch signal E

A4

782

TN

+12 volt reference

PIN

CKT

COLOR

DESCRIPTION

PIN A1

PIN B1

PIN C1

PIN D1

PIN A8

PIN B12

PIN C12

PIN D8

CAV A8

CAV B12

CAV C12

CAV D8

CAV A1

CAV B1

CAV C1

CAV D1

C83 MALE

C83 FEMALE

OBD-498

On-Board Diagnostics

_____________________________________________

A5

783

DG

TCC PWM solenoid supply voltage

A6

772

DG

Fluid pressure switch reverse signal

A7

591

DB

Transmission range switch signal A

A8

590

YL

Transmission range switch signal B

B1

592

GY

Transmission range switch signal C

B2

593

WH

Transmission range switch signal P

B3

923

TN

TFT sensor signal

B4

493

OR

Transmission turine speed switch signal

B5

494

DB

Transmission turbine speed switch low reference

B6

331

WH

Crank request

B7

298

BR

Backup light switch feed

B8

497

YL

Vehicle speed sensor high

B9

498

DG

Vechicle speed sensor low

B10

495

TN

AT ISS High signal

B11

496

OR

AT ISS low signal

B12

594

DG

Ground

C1

272

YL

Trans ID

C2

773

YL

PPC solenoid A valve high control

C3

774

WH

PPC solenoid A valve low control

C4

775

PK

PPC solenoid B valve high control

C5

776

OR

PPC solenoid B valve low control

C6

33

WH

neutral safety switch feed

C7

140

OR

Reverse signal

C8

777

DG

Shift solenoid C valve control

C9

778

DB

Shift solenoid D valve control

C10

779

GY

Shift solenoid E valve control

C11

780

WH

TCC PWM solenoid valve control

C12

781

DB

Modulated main pressure

D1

784

DB

T-case range switch input to the ECM (-)

D2

210

DG

Transfer case lock lamp activation

D3

330

PP

PRNDL switch

D4

D5

D6

1000

WH

Transmission OSS High

D7

1001

LB

Transmission OSS Low

D8

PIN

CKT

COLOR

DESCRIPTION

_____________________________________________

On-Board Diagnostics OBD-499

5745804

80 WAY FICM CONNECTOR LOCATION: ON THE FUEL INJECTION CONTROL MODULE

PIN

CKT

COLOR

DESCRIPTION

1

IC18

WH/LG

Fuel injector 4 command

2

IZ17

BK/YL

Ground G1

3

IC13

OR

Injectors 1-4-6-7 supply voltage

4

IC15

RD/LG

Fuel injector 1 command

5

1042

PK

Ignition 1 voltage

6-43

44

633

LB/BK

Injector 4 request

45

634

BK/WH

Injector 5 request

46

47

632

PK/BK

Injector 3 request

48

636

RD/BK

Injector 7 request

49-58

59

IC20

DB/WH

Fuel injector 6 command

60

IC520

DB/WH

Fuel injector 6 command

61

IC21

WH/RD

Fuel injector 7 command

62

IC521

WH/RD

Fuel injector 7 command

63

637

DB/BK

Fuel injector 8 request

64

635

YL/BK

Fuel injector 6 request

65

66

630

BK

Fuel injector 1 request

67

631

LG/BK

Fuel injector 2 request

68-81

C86 Female