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jrrod2004

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jrrod2004 Senior Enthusiast

jrrod2004

Posted
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Posted

ok, I will see about those and try to find em so I can make the comparison

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Triki_Dick Enthusiast

Triki_Dick

Posted
Posted

M.Cueva, if you have a few mins, how about some info about the LCM. I know it's probably sealed tight, and impossible to get to, however asking questions may get me closer to figuring this out.

 

I have no idea how complex or simple it is, but I'd like to know.

Norseman Senior Enthusiast

Norseman

Posted
Posted
UPDATE: Just added the steering wheel controls for the GMT900 trucks and the GMT800 Trucks, in addition I added the overhead console as well. enjoy and if you need something ask away. By the way, does anybody know how to downsize a PDF file to less than a megabyte, I cannot post the VIN CARDS because they are 1 1/2 megabytes in size and I can only upload up to 1 megabyte, thanks.

 

 

Send it to me. I'll see what I can do. I'll PM you an email address.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
  • Author
Posted

(at the risk of getting flamed -again) LCM? I have not heard of it.......enlighten me...

Triki_Dick Enthusiast

Triki_Dick

Posted
Posted

The Light Control Module. (I've found that relays etc do not control lights at all, it's the LCM)

 

The LCM tells which lights to be on period!!!!......

 

Shame it doens't have a serial connector and some simple software available. I'd fix it easily!

VTSierra Enthusiast

VTSierra

Posted
Posted
The Light Control Module. (I've found that relays etc do not control lights at all, it's the LCM)

 

The LCM tells which lights to be on period!!!!......

 

Shame it doens't have a serial connector and some simple software available. I'd fix it easily!

 

 

I was actually not correct on the name of the module that controls the lights. Most manufacturers use the LCM designation for the module that controls the lights. Looks like GM has integrated these functions into the BCM(body control module). Nonetheless it operates the same way.

Triki_Dick Enthusiast

Triki_Dick

Posted
Posted

BCM, right, that's making this even more complicated.

 

It'd be nice if you could hook this up to a PC and edit it. Just like how you use the DIC to display info on the dash.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
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Posted

nope, that is restricted material, the only guys that have access to that is GM TAC and GM Engineering, nobody that I know of.

jrrod2004 Senior Enthusiast

jrrod2004

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Posted

JNP07CC, I will post the most complete information regarding mirror swap later on tonight. In addition, I will be taking requests until December 16, 2007 to post information regarding diagrams, TSBs and VIN information. After such date, I will be on vacation and may take longer to reply to requests. In addition I will let everybody know that December will be my last month with GM and I have procured a new job in a different field. I will probably retain my DealerWorld Login for sometime after my resignation and will probably be able to help most guys until GM deactivates my account. I will post when I can no longer access DealerWorld. Until then, keep the requests coming and I will do my best to get the requested info!

Freezebear Enthusiast

Freezebear

Posted
Posted

Do you have a diagram for the lighting and front bumper wiring for a 07 Silverado? Please see my post Rats! for a picture of the wiring that I need a schematic for. Thank you.

  • 5 months later...
dobiethree New Member

dobiethree

Posted
Posted

Hey there,I'm new here, so please forgive me if I am out of line. I have a '01 silverado 1500 extended cab, and I am in need of the chassis electrical diagrams (exterior lighting, trailer, etc.) I purchased the Haynes manual for my truck, but it is one of those that spans a few years, and in doing so they encompassed the major chassis/body change year and did not include the updated schematics. One other item that was not updated were the four wheel disc brakes. The manual only refers to drum brakes on the rear. The reason I brought that issue up is I have no parking brake, all of the components seem to be in place, and operable, however, when the parking brake is applied it hits the floor before enough pressure is applied to the pads to hold the vehicle. I checked for adjustment at the point where the three cables meet underneath, and it seems the factory did not leave any adjustment for me. The pads are not excessively worn, nor are the rotors. I doubt the cable has streched, as the only time the brake has been used in the past is when I have worked undeneath the truck, and rare occasions of parking on a hill with a trailer or other load. Any sugjestions? Sorry about my long windedness, I truly would appreciate any help you can give me.

 

P.S. While browsing around looking for the digrams I noticed quite a few people with a clunking noise coming from the front of their trucks, I believe that noise can be narrowed down to a sloppy steering column shaft in the engine compartment, I found my noise only after my son was kind enough to try and push a buick out of his way at 50 MPH!!! Thanks again

 

Duane Englund [email protected]

jrrod2004 Senior Enthusiast

jrrod2004

Posted
  • Author
Posted
Hey there,I'm new here, so please forgive me if I am out of line. I have a '01 silverado 1500 extended cab, and I am in need of the chassis electrical diagrams (exterior lighting, trailer, etc.) I purchased the Haynes manual for my truck, but it is one of those that spans a few years, and in doing so they encompassed the major chassis/body change year and did not include the updated schematics. One other item that was not updated were the four wheel disc brakes. The manual only refers to drum brakes on the rear. The reason I brought that issue up is I have no parking brake, all of the components seem to be in place, and operable, however, when the parking brake is applied it hits the floor before enough pressure is applied to the pads to hold the vehicle. I checked for adjustment at the point where the three cables meet underneath, and it seems the factory did not leave any adjustment for me. The pads are not excessively worn, nor are the rotors. I doubt the cable has streched, as the only time the brake has been used in the past is when I have worked undeneath the truck, and rare occasions of parking on a hill with a trailer or other load. Any sugjestions? Sorry about my long windedness, I truly would appreciate any help you can give me.

 

P.S. While browsing around looking for the digrams I noticed quite a few people with a clunking noise coming from the front of their trucks, I believe that noise can be narrowed down to a sloppy steering column shaft in the engine compartment, I found my noise only after my son was kind enough to try and push a buick out of his way at 50 MPH!!! Thanks again

 

Duane Englund [email protected]

 

I will try to dig up some information, I will try to post later on today (After I get off work)...and by the way, welcome to GM-Trucks.com. Post some pics of your truck.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
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Posted

gmLogoFlat.gif Service Information

 

2001 Chevrolet Chevy C Silverado - 2WD | Sierra, Silverado, Suburban, Tahoe, Yukon (VIN C/K) Service Manual | Brakes | Disc Brakes | Specifications | Document ID: 661109 Fastener Tightening Specifications Application

 

Specification

 

Metric

 

English

 

Backing Plate Bolts

 

135 N·m

 

100 lb ft

 

Brake Hose to Caliper Bolt, Front

 

45 N·m

 

33 lb ft

 

Brake Hose to Caliper Bolt, Rear

 

25 N·m

 

18 lb ft

 

Caliper Guide Pin Bolt, Front

 

108 N·m

 

80 lb ft

 

Caliper Guide Pin Bolt, Rear (15 series)

 

42 N·m

 

31 lb ft

 

Caliper Guide Pin Bolt, Rear (25/35 series)

 

108 N·m

 

80 lb ft

 

Caliper Mounting Bracket to Backing Plate, Rear (JC5/JH5)

 

200 N·m

 

148 lb ft

 

Caliper Mounting Bracket to Backing Plate, Rear (JH6)

 

165 N·m

 

122 lb ft

 

Caliper Mounting Bracket to Backing Plate, Rear (JH7)

 

300 N·m

 

221 lb ft

 

Caliper Mounting Bracket to Knuckle, Front (15 series)

 

175 N·m

 

129 lb ft

 

Caliper Mounting Bracket to Knuckle, Front (25/35 series)

 

300 N·m

 

221 lb ft

 

© 2008 General Motors Corporation. All rights reserved.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
  • Author
Posted

gmLogoFlat.gif Service Information

 

2001 Chevrolet Chevy C Silverado - 2WD | Sierra, Silverado, Suburban, Tahoe, Yukon (VIN C/K) Service Manual | Brakes | Park Brake | Diagnostic Information and Procedures | Document ID: 702016 Park Brake System Diagnosis Step

 

Action

 

Yes

 

No

 

DEFINITION: This diagnostic table is designed to diagnose ONLY the components of the PARK brake system in order to determine if the PARK brake system is operating properly. You will be directed by the appropriate Symptom Table to go to other brake system diagnostic tables as appropriate.

 

1

 

Were you sent here from a Hydraulic Brake Symptom Table?

 

Go to Step 4

 

Go to Step 2

 

2

 

Were you sent here from a Park Brake Symptom Table?

 

Go to Step 4

 

Go to Step 3

 

3

 

Is the symptom related to the ability of the park brake system to hold and/or release?

 

Go to Diagnostic Starting Point - Park Brake

 

Go to Diagnostic Starting Point - Hydraulic Brakes

 

4

 

 

  1. Raise and support the vehicle with the rear axle supported by jack stands. Refer to Lifting and Jacking the Vehicle .
  2. Shift the transmission into NEUTRAL.
  3. With the park brake RELEASED, attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag.

Do the rear brakes have a significant amount of drag?

 

Go to Step 9

 

Go to Step 5

 

5

 

 

  1. Apply the park brake.
  2. Attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag.

Do the rear brakes have a significant amount of drag?

 

Go to Step 20

 

Go to Step 6

 

6

 

Visually check the park brake cable connections and the cables that are accessible on the UNDERSIDE of the vehicle for disconnections and/or damage.

 

Were any or the park brake cables disconnected and/or damaged?

 

Go to Step 7

 

Go to Step 8

 

7

 

Reconnect or replace the park brake cables as necessary. Refer to the following procedures as necessary:

 

 

 

 

 

 

 

 

 

Did you complete the repair and/or replacement?

 

Go to Step 20

 

--

 

8

 

Check the adjustment of the park brake. Refer to Park Brake Adjustment .

 

Was the park brake adjusted properly?

 

Go to Step 20

 

Go to Step 9

 

9

 

Notice: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.

 

 

  1. Remove the rear brake rotors. Refer to Rear Brake Rotor Replacement .
  2. Inspect the park brake shoe hardware for looseness, damaged, broken or missing components.
  3. Check the park brake actuators for a seized condition.

Does the park brake hardware and/or the park brake actuators require replacement?

 

Go to Step 10

 

Go to Step 11

 

10

 

 

  1. Replace park brake hardware components as necessary. Refer to Parking Brake Shoe Replacement .
  2. Replace the park brake actuators as necessary. Refer to Parking Brake Actuator Replacement .

Did you complete the replacement?

 

Go to Step 20

 

--

 

11

 

Have an assistant apply and release the park brake, while you observe the park brake cables for free movement.

 

Did the park brake cables move freely?

 

Go to Step 12

 

Go to Step 14

 

12

 

Check the adjustment of the park brake. Refer to Park Brake Adjustment .

 

Did you find and correct the condition?

 

Go to Step 20

 

Go to Step 13

 

13

 

Disconnect the park brake cable connections that are accessible on the UNDERSIDE of the vehicle one at a time and check each cable for free movement.

 

Do any of the park brake cables accessible on the underside of the vehicle require replacement?

 

Go to Step 14

 

Go to Step 15

 

14

 

Replace any of the park brake cables that do not have free movement (not releasing properly). Refer to the following procedures as necessary:

 

 

 

 

 

 

 

 

 

Did you complete the replacement?

 

Go to Step 20

 

--

 

15

 

 

  1. Disconnect the front park brake cable connection accessible INSIDE the vehicle at the park brake pedal assembly and check for free movement.
  2. Replace the front park brake cable if it does not have free movement. Refer to Parking Brake Front Cable Replacement .

Did you find and correct a condition?

 

Go to Step 20

 

Go to Step 16

 

16

 

 

  1. Disconnect the park brake release handle assembly cable connection from the park brake pedal assembly and check for free movement.
  2. Replace the park brake release handle assembly if the release cable does not have free movement. Refer to Parking Brake Release Handle Assembly Replacement .

Did you find and correct a condition?

 

Go to Step 20

 

Go to Step 17

 

17

 

Inspect the park brake pedal assembly for proper operation and replace if necessary. Refer to Parking Brake Lever Pedal Assembly Replacement .

 

Did you find and correct the condition?

 

Go to Step 20

 

Go to Step 18

 

18

 

Check the adjustment of the park brake and adjust if necessary. Refer to Park Brake Adjustment .

 

Did you find and correct the condition?

 

Go to Step 20

 

Go to Step 19

 

19

 

 

  1. Replace the component that is used to adjust the park brake system. Refer to Park Brake Cable Equalizer Replacement .
  2. Adjust the park brake. Refer to Park Brake Adjustment .

Did you complete the replacement and adjustment?

 

Go to Step 20

 

Go to Symptoms - Park Brake

 

20

 

 

  1. Install or connect any components that were removed or disconnected during diagnosis.
  2. Verify the operation of the park brake system.

Does the park brake operate correctly?

 

System OK

 

Go to Symptoms - Park Brake

 

© 2008 General Motors Corporation. All rights reserved.

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