Hummer H1 (2006+). Manual - part 160

OBD-484

On-Board Diagnostics

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D2

2

LG

Right turn indicator lamp activation

D3

961

PP

TT4 indicator lamp activation

E1

42

BR

Brake indicator lamp activation

E2

603

RD

ABS indicator lamp activation

E3

793

YL

Low washer fluid activation

E4

255

OR

High temp request to heated seat module

F1

17

PP

+ from dimmer module

F2

19

YL

Power supply to dimmer module

F3

658

BR

Check engine lamp activation

F4

327

YL

Drain Filter lamp activation

G1

517

OR

Power mirror switch battery feed

G2

210

DG

Transfer case lock lamp activation

G3

794

RD

Low coolant lamp activation

G4

879

WH/BK

Warning light activation 

G5

714

DB

Check throttle lamp activation

H6

14

LB

Head lamp switch feed

H7

65

YL

Ignition feed to intermittent wiper switch

H8

61

RD

High speed windshield wiper signal

H9

12

OR

High Beam indicator lamp activation

J6

63

DG

Low speed windshield wiper signal

J7

27

OR

Intermittent wiper signal

J8

948

DG/YL

Left hand power mirror up/down signal

J9

947

DB/YL

Left hand power mirror left/right signal

K6

942

OR/BK

Left hand power mirror common +/–

K7

3

LB

Left turn indicator lamp activation

K8

944

OR

Right hand power mirror common +/–

K9

644

YL

Tachometer signal

L6

904

OR/BK

Malfunction indicator Lamp (MIL)

L7

620

TN

Oil pressure reference signal

L8

952

DB

Right hand power mirror left/right signal

M6

789

BR

Fuel selector valve control

M7

786

RD

Fuel selector valve control

M8

785

GY

Fuel selector switch feed +12v fuse 3B (Interior fuse box)

M9

953

DG

Right hand power mirror up/down signal

N6

59

BK

Ground

N7

30

GY

Ignition feed to gauges

N8

941

TN

Windshield wiper washer pump activation

N9

945

BR

Intermittent wiper relay activation

P6

55

OR

Rear cargo lamp activation

P7

29

PK

Fuel gauge signal

P8

625

BR 

Coolant temperature signal

PIN

CKT

COLOR

DESCRIPTION

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 On-Board Diagnostics  OBD-485

5745804

20 WAY TRANSMISSION PASS-THROUGH location: transmission, left

P9

353

YL

Speedometer signal

P10

878

LG/BK

Front ELocker time out light signal

PIN

CKT

COLOR

DESCRIPTION

A

777

DG

Shift solenoid C valve control

B

778

DB

Shift solenoid D valve control

C

782

TN

+12 volt reference

D

769

DB

Fluid pressure switch signal C

E

771

WH

Fluid pressure switch signal E

F

770

PK

Fluid pressure switch signal D

G

923

TN

TFT sensor signal

H

594

DG

Ground

J

780

WH

TCC PWM solenoid valve control

K

772

DG

Fluid pressure switch reverse signal

L

773

YL

PPC solenoid A valve high control

M

774

WH

PPC solenoid A valve low control

N

775

PK

PPC solenoid B valve high control

P

776

OR

PPC solenoid B valve low control

R

781

DB

Modulated main pressure

S

783

DG

TCC PWM solenoid supply voltage

T

272

YL

Trans ID

U

V

W

779

GY

Shift solenoid E valve control

PIN

CKT

COLOR

DESCRIPTION

C34 FEMALE

C34 MALE

OBD-486

On-Board Diagnostics

_____________________________________________

56 WAY ECM J1 (BLUE) LOCATION: DRIVERSIDE UNDER ECM

PIN

CKT

COLOR

DESCRIPTION

1

211

YL

SAE J1939 CAN HI

2

212

DG

SAE J1939 CAN LO

3

620

TN

Oil pressure reference signal

4

270

GN

Transmission temperature signal

5

1037

RD

+12 Battery voltage

6

625

BR 

Coolant temperature signal

7

255

OR/BK

Baro sensor ground

8

156

PK/BK

Cam sensor ground

9

244

BK

Ground

10

242

PK

Ignition 1 Voltage

11

12

13

654

DB

MAF sensor signal

14

105

BR/WH

EGR valve position signal

15

914

PP

Class II (J1850 data link)

16

17

720

TN

5 volt reference

18

243

PK

+12v Ignition feed ECM 

19

242

PK

Ignition 1 voltage

20

1037

RD

Battery positive voltage

21

22

23

367

GY

5 volt reference turbo vein position sensor

24

25

26

338

DB

Wait to start indicator control

C75 Female

_____________________________________________

 On-Board Diagnostics  OBD-487

5745804

27

28

721

LB

APP sensor 2 (5 volt signal)

29

30

31

612

WH/BK

Baro pressure (5 volt signal)

32

717

TN

APP sensor 1 (5 volt signal)

33

508

TN

Fuel rail pressure sensor (5 volt signal)

34

617

GY

Engine oil pressure (5 volt signal)

35

36

723

YL

APP sensor 3 (5 volt signal)

37

513

YL

Fuel pressure regulator solenoid control

38

39

614

GY

MAP sensor (5 volt signal)

40

510

PP/WH

Fuel pressure regulator solenoid control

41

42

514

PK

Generator field duty cycle signal

43

44

45

46

353

YL

Front differential 

47

106

GY

EGR valve (5 volt signal)

48

49

50

254

RD

CAM sensor (5 volt signal)

51

511

YL

Fuel pressure regulator solenoid control

52

516

GY/BK

FICM relay control

53

136

BK

54

512

PP/WH

Fuel pressure regulator solenoid supply voltage

55

56

514

PK

Ignition voltage +12v

PIN

CKT

COLOR

DESCRIPTION