My 2001 chevy suburban battery light comes on and stops the horn, heater/air blower and sometimes the radio. Then it usually comes back on, but now the light has been on for 4 days and only the heater/air blower doesn't work along with the dash lights??? The mechanic says he can't fix it bc he doesn't have a electrical diagram...

SOURCE: Heater issue with Chevy 1500 4wd 5.3 Silverado

CHECK THE CONNECTOR ON THE BLOWER RESISTOR. this is the board he replaced, the connector burns up on them also it is probably not making a good connection. look under pass side by the blower motor the board is right there will be a 5or 6 pin connector unplug it an see if melted looking. chevy sells just the pig tail so you can wire in

SOURCE: Heater Blower won't work

Find the blower motor on the passenger side just above where the passengers feet would be. You may need to remove a panel (fairly easy). You will see a round metal housing about 4" in diameter. Turn on the ignition key and blower motor. Then tap the housing with a small hammer or a screwdriver. If the blower comes on.....replace the motor. If not, find the wires leading to that motor, undo the connector and check for power and ground in them.(You did check fuses first...right?)

Harvey N Tawatao

• 3854 Answers
• Posted on Dec 23, 2009

SOURCE: chevy cavalier wont start randomly! makes one

Ok then, from your description and the
make/model/year of the car you have there,
it appears you've reset the VATS.

The car's security immobilizer
reader at the key switch
does not recognize the coded
chip in the ignition key any longer.

You can try to put the key
in the ignition, turn to the on position &
wait at least 10 min like that.
(Do not turn off the key switch before
10 minutes as elapsed!)

Once done, the key is re-programmed and
should allow the fuel injectors to work again.
The car would start now if corrected.

In some cases, the VATS (GM'S VEHICLE ANTI THEFT SYSTEM)
will re learn the code this way, and will then
allow the restart, however if this does not work,
then you can simply tow it to any GM vehicle dealer
to have the service department re code it.

There is a permanent solution though.
Adding the PLJX Self learning Bypass module (59.95)
will bypass the PASSLOCK system in your vehicle
for good. See this at www.PASSLOCK2.com

Good luck I hope method 1 does the trick!

Here is the 30 min relearn:

Ignition keys relearn takes about 30 min to do. 30-Minute Learn Procedure 1. Turn ON the ignition, with the engine OFF. 2. Attempt to start the engine, then release the key to ON; the vehicle will not start. 3. Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF. 4. Turn OFF the ignition switch, and wait 5 seconds. 5. Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes. The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch turn from OFF to CRANK Important: Turn the Ignition Switch OFF. The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle. 6. Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password. 7. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles. Without a scan tool you may have momentary starter interruptions while history clears itself.

SOURCE: Chevy suburban front blower only works on certain settings.

I had the similar problem with my 99 suburban. I replaced the blower switch and works just fine.

SOURCE: 2001 chevy cavalier 4 cyl.

hate to say it, but it's basically the instrument cluster was built rather cheaply -- I've switched mine for one with a tachometer as I've got a manual transmission, [it's a fairly quiet car and with the radio on at all and windows up it's hard to tell how high it's revving] and mine does this all the time, I get every other digit, and if I need the actual miles I have to fiddle with the trip meter button a bit for it to show properly
Basically, you can try and get another instrument cluster and swap it out or just deal with it -- I don't recommend trying to 'fix' it as most often during the disassembly of the cluster damages the gauges