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GM_MASTER_DENNY
GM_MASTER_DENNY, GM and ASE Master Tech/Shop Foreman
Category: Chevy
Satisfied Customers: 178
Experience:  Over 15 years experience in automotive repair. GM Mark Of Excellence Winner for several years.
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2005 chevy: i need a complete wiring diagram..duramax diesel

Resolved Question:

i need a complete wiring diagram for a 2005 chevy 2500 hd with a duramax diesel
Submitted: 5 years ago.
Category: Chevy
Expert:  GM_MASTER_DENNY replied 5 years ago.
What diagrams do you need? There is a whole book of diagrams for this truck. I will also need specifics on the vehicle. (reg cab,ex cab,crew cab,long bed,short bed,) The VIN would be of great help.
Customer: replied 5 years ago.
it is a crew cab with a short bed. i need every thing to do with the fuel pump and relay. i'm not getting power to pin 85 or 86 on the relay. they both show a ground and i'm not getting anything on pin 87 and 12 volts on pin 30. i think the pump is bad but that shouldn't keep the relay from turning on. i also need wiring for blower motor circuit it has stopped blowing. vin # XXXXX
Expert:  GM_MASTER_DENNY replied 5 years ago.

Hope this helps.

 

graphic

 

graphic

 

graphic

GM_MASTER_DENNY, GM and ASE Master Tech/Shop Foreman
Category: Chevy
Satisfied Customers: 178
Experience: Over 15 years experience in automotive repair. GM Mark Of Excellence Winner for several years.
GM_MASTER_DENNY and 9 other Chevy Specialists are ready to help you
Customer: replied 5 years ago.
i'm not sure this is all that i need but if its not and i go ahead and pay you will i have to pay you again for the extra info? and will the fuel pressure sensor or fuel temp sensor keep the computer from turning on the pump?
Expert:  GM_MASTER_DENNY replied 5 years ago.
They won't have any effect on it. If you need more diagrams, let me know and I will post them for you.
Customer: replied 5 years ago.

you helped me on a 2005 2500 crew cab with a duramax could you tell me where the fuel pump is at? i thought it was in the tank after i couldn't find it on the frame rails but i have the bed off and there are only two wires going to the tank. thanks

Expert:  GM_MASTER_DENNY replied 5 years ago.
The duramax doesn't use a fuel lift pump. It operates the fuel supply system by vacuum. It has a fuel injection control module and a fuel rail pressure regulator and an injection pump. Be VERY careful when working on the high pressure side of the system. It operates on around 30,000 psi. If you look in the middle schematic, there is a fuel pump relay with no wires going to it. This is because GM uses the same fuse box in a gas engine model. If you let me know what you are trying to diagnose, I might be able to help.
Customer: replied 5 years ago.
i started the engine and moved about three feet and it died and wont start it cranks fine it acted just like one with a fuel pump that stopped working i haven't scanned the truck yet but was going too this morning i did find a fuel pump relay in the4 box and tested and i had every thing there but signal from pump and if its not there that would make sense.i also did check all the fuses to make sure that they were good. any help would be great. thanks
Expert:  GM_MASTER_DENNY replied 5 years ago.

If you look on top of the part the fuel filter mounts to, there is a small black plastic plug. Unscrew the plug a couple of turns. (careful not to damage it) Next to the plug is a round primer pump. Pump the primer several times until you get a good flow of fuel out of the black vent plug. Tighten the plug. Pump the primer several more times until it gets hard to push. Try to start the vehicle.

 

How long has it been since the fuel filter was replaced?

Customer: replied 5 years ago.
fuel filter was changed 500 miles ago. my scanner says that the computer is not cummunacating with it to turn the key on so i think its in the computer. any ideas?
Customer: replied 5 years ago.
can you also tell me where G200 is the blower motor is losing its ground? thanks greatly
Expert:  GM_MASTER_DENNY replied 5 years ago.

graphic

 

G122 (HP2)

In the 42-volt harness, mounted on the bracket behind the electronic power steering pump assembly

Power and Grounding Component Views

--

G200

In the HVAC harness, on the right side of the I/P near the A-pillar below the I/P top cover

Customer: replied 5 years ago.
can i get a pinout chart for the computer for this truck so i can check all the powers and grounds. thanks and i'll give you somemore money. i have to put more in my account.
Expert:  GM_MASTER_DENNY replied 5 years ago.
Engine Control Module Connector End Views
Table 1:Engine Control Module (ECM) - C1
Table 2:Engine Control Module (ECM) - C2
Table 3:Engine Control Module (ECM) - C3

Engine Control Module (ECM) - C1


Object Number:(NNN) NNN-NNNN Size: CH
Click here for detailed picture of above image.

Connector Part Information

15357147
56-Way F Micro 64 (BU)

Pin

Wire Color

Circuit No.

Function

1

YE

2361

SAE J1939 Serial Data Bus +

2

D-GN

2362

SAE J1939 Serial Data Bus -

3-4

--

--

Not Used

5

OG

440

Battery Positive Voltage

6

--

--

Not Used

7

OG/BK

1057

Low Reference

8

PK/BK

632

Low Reference

9

BK/WH

451

Ground

10

PK

439

Ignition 1 Voltage

11-12

--

--

Not Used

13

YE

492

MAF Sensor Signal

14

BN/WH

5763

EGR Valve Position Signal

15

D-GN

1049

Class 2 Serial Data

16

--

--

Not Used

17

TN

1274

5-Volt Reference

18

PK

1020

Ignition 0 Voltage

19

PK

439

Ignition 1 Voltage

20

OG

440

Battery Positive Voltage

21

GY

2700

5-Volt Reference

22

--

--

Not Used

23

OG/BK

5929

5-Volt Reference

24-25

--

--

Not Used

26

D-BU

507

Wait to Start Indicator Control

27

--

--

Not Used

28

L-BU

1162

APP Sensor 2 Signal

29

--

--

Not Used

30

PU/WH

1589

Fuel Level Sensor Signal - Primary

31

WH/BK

2932

5-Volt Reference

32

WH/BK

1164

5-Volt Reference

33

TN

2917

5-Volt Reference

34

GY

2705

5-Volt Reference

35

--

--

Not Used

36

YE/BK

1275

5-Volt Reference

37

YE

2834

Fuel Pressure Regulator Solenoid Control

39

GY

597

5-Volt Reference

40

PU/WH

2530

Fuel Pressure Regulator Solenoid Supply Voltage

41

GY

23

Generator Field Duty Cycle Signal

42

PK

1039

Ignition 1 Voltage

43

D-BU

1936

Fuel Level Sensor Signal - Secondary

44

D-GN/WH

465

Fuel Pump Relay Control

45

--

--

Not Used

46

YE/BK

1827

Vehicle Speed Signal

47

GY

2703

5-Volt Reference

48-49

--

--

Not Used

50

RD

631

12-Volt Reference

51

YE

2834

Fuel Pressure Regulator Solenoid Control

52

GY/BK

2219

FICM Relay Control

53

D-GN/WH

817

Vehicle Speed Signal

54

PU/WH

2530

Fuel Pressure Regulator Solenoid Supply Voltage

55

--

--

Not Used

56

PK

1039

Ignition 1 Voltage

Engine Control Module (ECM) - C2


Object Number:(NNN) NNN-NNNN Size: CH
Click here for detailed picture of above image.

Connector Part Information

15357131
73-Way F Micro 64 (BK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

OG/BK

2919

Low Reference

3

--

--

Not Used

4

BN

25

Charge Indicator Control

5-6

--

--

Not Used

7

GY/BK

1694

4WD Low Signal

8

BK

2754

Low Reference

9-12

--

--

Not Used

13

BK

2751

Low Reference

14

GY

720

Low Reference

15-16

--

--

Not Used

17

YE/BK

508

Water in Fuel Indicator Control

18

--

--

Not Used

19

D-BU

1161

APP Sensor 1 Signal

20

--

--

Not Used

21

D-BU

2466

Trans MIL Request

22

--

--

Not Used

23

L-GN

432

Turbocharger Boost Sensor Signal

24

D-GN

1163

APP Sensor 3 Signal

25

TN/WH

332

Oil Pressure Sensor Signal

26

BN

1174

Oil Level Switch Signal

27

YE

1578

Fuel Temperature Signal

28

L-GN

1867

12-Volt Reference

29

GY/BK

2931

Low Reference

30

OG/BK

469

Low Reference

31

YE

5947

Turbocharger Vane Position Sensor Signal

32

--

--

Not Used

33

OG/BK

5764

EGR Motor High Control

34

--

--

Not Used

35

L-GN/ BK

5746

EGR Motor Low Control

36

BK/WH

451

Ground

37

--

--

Not Used

38

L-GN

1478

Coolant Level Switch Signal

39

BK

2755

Low Reference

40

BN

1271

Low Reference

41

--

--

Not Used

42

YE

2918

FRP Sensor Signal

43

--

--

Not Used

44

TN

5928

Low Reference

45

--

--

Not Used

46

GY/BK

433

Baro Sensor Signal

47-48

--

--

Not Used

49

D-BU

5930

Turbocharger Vane Position Control Solenoid Valve Control

50

WH

5931

Low Reference

51

--

--

Not Used

52

PK/BK

1746

Fuel Injector 3 Control

53

OG/BK

5764

EGR Motor High Control

54

PU

1272

Low Reference

55

L-GN/ BK

5746

EGR Motor Low Control

56

GY

1273

Low Reference

57

BN

2524

Generator 2 Turn on Signal

58

BK

552

Low Reference

59

--

--

Not Used

60

L-BU

1320

CHMSL Supply Voltage

61

PU

420

TCC Brake Switch/Cruise Control Release Signal

62

--

--

Not Used

63

L-BU

2832

Engine Speed Signal

64

BK

470

Low Reference

65

L-GN/BK

1745

Fuel Injector 2 Control

66

RD/BK

877

Fuel Injector 7 Control

67

YE

410

ECT Sensor Signal

68

D-BU/WH

878

Fuel Injector 8 Control

69

L-BU/BK

844

Fuel Injector 4 Control

70

BK/WH

845

Fuel Injector 5 Control

71

YE/BK

846

Fuel Injector 6 Control

72

BK

1744

Fuel Injector 1 Control

73

BK/WH

451

Ground

Engine Control Module (ECM) - C3


Object Number:(NNN) NNN-NNNN Size: CH
Click here for detailed picture of above image.

Connector Part Information

15357148
56-Way F Micro 64 (GY)

Pin

Wire Color

Circuit No.

Function

1

L-BU

494

PTO Engine Kill Signal (PTO)

2-5

--

--

Not Used

6

L-GN

488

PTO on Switch Signal (PTO)

7

--

--

Not Used

8

BK/WH

1695

Front Axle Switch Signal

9

--

--

Not Used

10

PK

1039

Ignition 1 Voltage

11

--

--

Not Used

12

PU/WH

821

VSS High Signal (ML6)

YE

400

VSS High Signal (M74)

13

--

--

Not Used

14

PK

1039

Ignition 1 Voltage

15-16

--

--

Not Used

17

YE

2522

PTO Engage Signal (PTO)

18

PU

806

Crank Voltage

19

D-BU

84

Cruise Control Set/Coast Switch Signal

20-21

--

--

Not Used

22

GY/BK

87

Cruise Control Resume/Accel Switch Signal

23

L-GN/BK

822

VSS Low Signal (ML6)

24

TN

472

IAT Sensor Signal

25-29

--

--

Not Used

30

GY

397

Cruise Control on Switch Signal

31

OG/BK

1786

Park/Neutral Signal

32

--

--

Not Used

33

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

34

--

--

Not Used

35

YE/BK

625

Starter Enable Relay Control

36

--

--

Not Used

37

WH

121

Engine Speed Signal

38

--

--

Not Used

39

PU

2562

PTO Control (PTO)

40

BN/WH

419

MIL Control

41

D-GN/WH

459

A/C Compressor Clutch Relay Control

42

--

--

Not Used

43

YE/BK

1868

Low Reference

44

BK/WH

451

Ground

45

GY

1524

Backup Lamp Supply Voltage

46

--

--

Not Used

47

GY

48

CPP Switch Signal

48

BN

718

Low Reference

49-50

--

--

Not Used

51

BN/WH

633

CMP Sensor Signal

52

D-BU/WH

1869

CKP Sensor Signal

53-56

--

--

Not Used

 

graphic

graphic

graphic

GM_MASTER_DENNY, GM and ASE Master Tech/Shop Foreman
Category: Chevy
Satisfied Customers: 178
Experience: Over 15 years experience in automotive repair. GM Mark Of Excellence Winner for several years.
GM_MASTER_DENNY and 9 other Chevy Specialists are ready to help you
Customer: replied 5 years ago.
thanks alot. that should be all i need but i will need you again and will get back with you thanks again.

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GM_MASTER_DENNY
GM_MASTER_DENNY
Shop Foreman
117 Satisfied Customers
Over 15 years experience in automotive repair. GM Mark Of Excellence Winner for several years.