Question about 2002 Chevrolet Silverado

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4 wheel drive on 02 chevy silverado not working

Need to locate the control module, where is it??

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There is a solinoid on the front differential that shifts the front in and out of 4wd, that could be it.

Posted on Jan 02, 2009

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How do you change a temperature control module


1A Auto Shows you how to install, repair, fix, change or replace a broken or not working AC/Heater air temperature control. This video is applicable to the 99, 00, 01, 02, 03, 04, 05, and 06 Chevy Silverado, Sierra, and Suburban models.

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Where's the coolant level sensor located on a 6.0 '02 Chevy 2500 HD Silverado?


this might be important for you to know
Quote:

08-08-49-002: False Triggering of Low Coolant Level Warning Message (Reprogram HVAC Control Module) - (Feb 13, 2008)

Subject:
False Triggering Of Low Coolant Level Warning Message (Reprogram HVAC Control Module)

Models:
2007-2008 Chevrolet Silverado 2500 and 3500 Heavy Duty Series Only
2007-2008 GMC Sierra 2500 and 3500 Heavy Duty Series Only
with 6.6L Diesel Engine (VIN 6 -- RPO LMM)

--------------------------------------------------------------------------------
Condition
Some customers may comment that a "COOLANT LEVEL LOW ADD COOLANT" message is displayed in the Driver Information Center (DIC) even though the coolant level is normal.

Cause
This condition may be caused by a false reading during off-road driving or in high slush conditions.

Correction
Do This - Reprogram the HVAC control module.
Don't Do This - Do not replace the coolant level sensor, HVAC control module or radiator surge tank.


A revised calibration has been developed to address this condition. Technicians are to reprogram the Heating Ventilation and Air Conditioning (HVAC) control module with the latest software available on TIS2WEB. Refer to the Service Programming System procedures in SI. As always make sure your Tech 2 is updated with the latest software version.


Warranty Information
For vehicles repaired under warranty, use:
Labor: Operation D4707
Description: HVAC Control Head Module or Assembly Reprogramming with SPS
Labor Time: Use Published Labor Operation Time

Dec 02, 2013 | 2002 Chevrolet Silverado 2500HD

1 Answer

02 chevy silverado 4x4 service light always on and stuck in 2 wheel drive.


You need to have the dealer scan the control module to see what codes show in memory

Jun 17, 2012 | 2002 Chevrolet Silverado 1500

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How do i install a transfer control module on a 2001 chevy silverado 2500hd


the transfer case control module is located behind the left side of dash behind the headlight switch, you will need to remove the speedo trim around speedometer, then pull put the headlight switch. the module is just snaped into place. also keep in mind, the module has to programmed with software for it to work correclty. in other words, the replacement module will have to be programmed after installing

Jan 08, 2012 | 2001 Chevrolet Silverado 2500HD

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4 wheel drive doesnt work where is the modulator that controls the 4 wheel drive


Transfer case control module on left hand side of dash above head light sw

Jan 11, 2011 | 1999 Chevrolet Silverado 1500

2 Answers

1999 chevy silverado service 4 wheel drive light


I had a similar problem with the Service 4 Wheel Drive light which came on intermittently then became more consistent in the message center display. It would go into 4 wheel drive if the message center did not display the Service 4 Wheel Drive message in the message center, but not when the message was displayed. I found the transfer case switch module in the dash was defective, and it has been working with no other problems for three years.

Jul 16, 2010 | 1999 Chevrolet Silverado 1500

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ABS control module "brake fluid pump" runs constantly.


I do not know anywhere that can repair the module, and yes one from a salvage yard is a good idea.

Apr 03, 2009 | 1999 Chevrolet Silverado 1500

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Chevy steering wheel controls


You first have to disarm and remove the air bag (unscrews with bolts from behind the steering wheel) and then you will see the screws for the switches. Only the silverado awitches will work.

Jan 29, 2009 | 2002 Chevrolet Avalanche

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Service 4 wheel drive


replace the transfer case shift control switch . there is a TSB # 02-04-21-004 released in april of 2002 , on your unit , you may also find a code # B2725 set in the body control module , fualt explination - fualt in transfer case shift control switch . GM part # 15709327 , also he is an excellent link on how to replace it yourself .

http://www.saltedwound.com/archives/2007/04/24/repair-service-4wd-light-on-2000-chevy-silverado/

i know its a siverado but its the same process . that will fix ya !

Jan 08, 2009 | 2001 GMC Yukon XL

1 Answer

I need to locate the 4 wheel drive control module on a 2002 Chevy Silverado. can you tell me where to look


  1. Remove the IP trim bezel.
  2. Pull out the lamp switch, 4WD shift buttons, cargo lamp and air deflector louver assembly in order to disconnect the electrical connectors.
  3. Disconnect all the electrical connectors from the lamp switch, cargo lamp and 4WD shift buttons assembly.
  4. Remove the lamp switch, 4WD shift buttons, cargo lamp and air deflector louver assembly from the vehicle
  5. Remove the electrical harness retainer from the IP support beam.
  6. Disconnect the 2 electrical connectors from the transfer case shift control module.
  7. Move the electrical harness to the left side in order to make room to turn the transfer case shift control module.
  8. Rotate the transfer case shift control module about 45 degrees counter clockwise while pulling out at the same time until the module is approximately 90 degrees from the original position.
  9. Pull out the module from the vehicle

Jan 02, 2009 | 2002 Chevrolet Silverado

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