Hummer H2. Manual — part 1424

Fig. 25: Engine Controls Component Views (3 Of 3)
Courtesy of GENERAL MOTORS CORP.

Callouts For Fig. 25

11

Throttle Body Connector

12

Evaporative Emission (EVAP) Canister Purge Solenoid

Callout

Component Name

1

Fuel Filter

2

Fuel Tank

3

Fuel Pump and Sender Assembly

4

Fuel Tank Pressure (FTP) Sensor

5

Evaporative Emission Canister Vent (EVAP) Solenoid

6

EVAP Canister

7

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1

2004 Hummer H2

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2

Fig. 26: Knock Sensors Component Views
Courtesy of GENERAL MOTORS CORP.

Callouts For Fig. 26

POWERTRAIN CONTROL MODULE (PCM) CONNECTOR END VIEWS

8

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2

9

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1

10

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2

Callout

Component Name

1

Knock Sensor (KS) 1

2

Knock Sensor (KS) 2

2004 Hummer H2

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2

Powertrain Control Module (PCM) - C1 Terminal Identification

Connector Part Information

z

12191489

z

80-Way F Micro-Pack 100W Sealed (BU)

Pin

Wire Color

Circuit No.

Function

1

BK/WH

451

Ground

2

L-GN

1867

12 Volt Reference

3

PK/BK

1746

Fuel Injector 3 Control

4

L-GN/

BK

1745

Fuel Injector 2 Control

5-6

-

-

Not Used

7

GY

2705

5 Volt Reference

8-10

-

-

Not Used

11

L-BU

1876

Knock Sensor 2 Signal

12

D-BU/

WH

1869

CKP Sensor Signal

13

-

-

Not Used

14

OG/BK

1061

UART Serial Data-Secondary

15

D-BU/

WH

774

UART Serial Data-Tertiary

16

-

-

Not Used

17

D-BU

1225

Transmission Fluid Pressure Switch Signal B

18

RD

1226

Transmission Fluid Pressure Switch Signal C

19

PK

439

Ignition 1 Voltage

20

OG

440

Battery Positive Voltage

21

YE/BK

1868

Low Reference

22

-

-

Not Used

23

BK

470

Low Reference

24

BK/WH

451

Ground

2004 Hummer H2

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2

25

TN

1671

HO2S Low Signal - Bank 2 Sensor 2

26

TN

1667

HO2S Low Signal - Bank 2 Sensor 1

27

BK/WH

451

Ground

28

TN/WH

1669

HO2S Low Signal - Bank 1 Sensor 2

29

TN

1664

HO2S Low Signal - Bank 1 Sensor 1

30

L-GN

1478

Coolant Level Switch Signal

31

-

-

Not Used

32

BK/WH

771

Transmission Range Switch Signal A

33

PU

420

TCC Brake Switch/Cruise Control Release Signal

34

WH

776

Transmission Range Switch Signal P

35

-

-

Not Used

36

BK

1744

Fuel Injector 1 Control

37

YE/BK

846

Fuel Injector 6 Control

38

-

-

Not Used

39

YE/BK

625

Starter Enable Relay Control

40

BK/WH

451

Ground

41-42

-

-

Not Used

43

RD/BK

877

Fuel Injector 7 Control

44

L-BU/BK

844

Fuel Injector 4 Control

45

GY

2700

5 Volt Reference

46

GY

474

5 Volt Reference

47

-

-

Not Used

48

GY

597

5 Volt Reference

49-50

-

-

Not Used

51

D-BU

496

Knock Sensor 1 Signal

52

-

-

Not Used

53

BK

407

Low Reference

54

OG/BK

469

Low Reference

55-56

-

-

Not Used

57

OG

440

Battery Positive Voltage

58

D-GN

1049

PCM Class 2 Serial Data

59

YE

710

PCM Class 2 Serial Data

60

-

-

Not Used

61

PK/BK

632

Low Reference

62

-

-

Not Used

63

BK

2755

Low Reference

64

BK/WH

451

Ground

65

PU

1670

HO2S High Signal - Bank 2 Sensor 2

66

PU

1666

HO2S High Signal - Bank 2 Sensor 1

67

BK/WH

451

Ground

68

PU/WH

1668

HO2S High Signal - Bank 1 Sensor 2

2004 Hummer H2

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2