Ok, so here are the details of my truck and the issue I have. It is a 2001 Chevy SIlverado 1500HD 4wd with auto a/c. I went to my truck the other day and turned the key on, fired the truck up and went to turn on the a/c. Nothing happened at all, no blower motor no compressor no lights on a/c control panel other than a/c on light which got brighter when I tried to turn the fan speed up and which also would not turn off neither would the recirc. Then, I noticed that I had no tach and the fuel gauge and the temp gauge were neither one work along with the info center and the PRNDL! I checked every fuse and every relay I could find including the ones under the dash beside the brake pedal which have nothing to do with what I am having trouble with as far as I have ever know. I have been a mechanic for a very very long time and have never seen this issue before and have checked all the grounds I could remember the location of. I have two other trucks of the same gen tried the cluster from both same issue. Tried the a/c control panel from both and again same issue! Solus says no codes and gave no help at all GRRRRR!!!! Any ideas guys? I really want my truck back to full working order and am stumped! Thanks for any help you can offer in advance!!!
2001 silverado 1500HD No DIC, No PRNDL, No tach, No fuel gauge, No AC controls!!!!
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If the fuses/relays are good, grounds are OK, no network codes, and swapping out cluster & HVAC modules does not make a difference then the next step is to verify if power is making it from the fuses to the modules & cluster. The links below provide power distribution info for the cluster & HVAC controller & blower. One *potential* culprit could be a broken trace(s) in the underside of the fuse block.
Instrument Cluster Schematics: IGN 1, IGN 0, Cruise, Radio Fuses
HVAC Schematics: Blower Controls - Primary (Primary Blower Controls)
Here is a link to a recent problem/solution involving broken traces underneath the junction block:
long crank after engine suddenly stops (see post #37)
Edit: Ignition switch should also be checked.
Instrument Cluster Schematics: IGN 1, IGN 0, Cruise, Radio Fuses
HVAC Schematics: Blower Controls - Primary (Primary Blower Controls)
Here is a link to a recent problem/solution involving broken traces underneath the junction block:
long crank after engine suddenly stops (see post #37)
Edit: Ignition switch should also be checked.
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This issue is very reminiscent of a "Rodent Depredation" Issue occurring under similar circumstances:
www.silveradosierra.com
Before you begin to explore these areas of your own Truck:
... BEWARE BECOMING INFECTED WITH THE HANTA VIRUS (HPS) THAT EITHER KILLS 40% OF ITS VICTIMS...OR DESTROYS THEIR QUALITY OF LIFE ...UTTERLY.
(1) Wear M11 Nitrile Gloves, an N-95 Mask and Eye Protection.
(2) Do NOT employ Canned or Compressed Air during Clean Up.
(3) Use Bleach and Water on Rags (or 5% Calcium Hypo-Chlorate).
(4) Carefully Treat and Wipe up Feces and Dried Urine with Wet Rags.
(4) Find and Use the BEST Wiring Diagrams to Refer to during Repairs.
(5) Use a Headband Flashlight for such close work.
(6) Prepare your areas with Heat Shrink Tubing and Good Solder.
(7) A Butane Soldering Torch Kit is your BFF in this case.
(8) Distribute Peppermint Oil Soaked Pads all around the locations where Rats & Mice can Nest.
Visit THIS Link and View the Screen Prints Below:
www.silveradosierra.com
www.cdc.gov
www.cdc.gov
Tachometer not working
www.silveradosierra.com
Before you begin to explore these areas of your own Truck:
... BEWARE BECOMING INFECTED WITH THE HANTA VIRUS (HPS) THAT EITHER KILLS 40% OF ITS VICTIMS...OR DESTROYS THEIR QUALITY OF LIFE ...UTTERLY.
(1) Wear M11 Nitrile Gloves, an N-95 Mask and Eye Protection.
(2) Do NOT employ Canned or Compressed Air during Clean Up.
(3) Use Bleach and Water on Rags (or 5% Calcium Hypo-Chlorate).
(4) Carefully Treat and Wipe up Feces and Dried Urine with Wet Rags.
(4) Find and Use the BEST Wiring Diagrams to Refer to during Repairs.
(5) Use a Headband Flashlight for such close work.
(6) Prepare your areas with Heat Shrink Tubing and Good Solder.
(7) A Butane Soldering Torch Kit is your BFF in this case.
(8) Distribute Peppermint Oil Soaked Pads all around the locations where Rats & Mice can Nest.
Visit THIS Link and View the Screen Prints Below:
Tachometer not working
www.silveradosierra.com
Clinician Brief: Hantavirus Pulmonary Syndrome (HPS)
Clinical information about HPS, a severe disease that affects the lungs.
www.cdc.gov
Clinical Overview of Hantavirus
Hantavirus infection causes potentially serious diseases. Hantavirus is spread by rodents.
www.cdc.gov
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