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Heater Fan quit
Posted 19 January 2008 - 12:24 AM
I have no idea what to do.
Posted 19 January 2008 - 12:28 AM
If not, replace fan.
If it works, but there is just no voltage to it, try to track down the short, or just run a new wire for the 12v(fused of course)
2 and 3 not working is the fault of the resitor block in the duct.
Posted 19 January 2008 - 09:36 AM
"not cool" well it is actually.
Sounds like you might have more than one issue.
First the one problem Gloyal points out
Two of the speeds that failed were from a bad resistor block.
Located Under the glove box behind the
Power is fed to the blower motor directly from the
blower relay (located under the dash above the
ECU (there will be several there).
With the key on you should see power on one wire
at the blower.
Speed is controlled by the switch using the resistors
in the block.
This puts the negative or ground side on the motor.
Note: high speed (#4) is direct and by passes the
resistor block giving full ground to the motor.
Sounds like your blower may have had issues
(mice nests most common). This
causing it to draw
more current that it should
but not enough to
blow the fuse
This resulted in the relay contacts going toast.
Hope this help, wrong time of the year for no
Posted 19 January 2008 - 10:55 AM
Posted 19 January 2008 - 11:15 AM
Please remember the resistor block is by passed
in the high speed position.
If this position does not work, you have more issues
than just the resistor block.
If the relay is toast and you do not want to dig for it
(real PITA in my expierence).
You could run a fused wire from a good positive
The cig lighter comes to mind
as it is fused and is somewhat high current.
Plus it is switched by the ignition.
Posted 19 January 2008 - 12:23 PM
You probably need a new relay.
The relay is up under the dash, mounted in a group with 3 other relays. Not really that big of a pain to get to. Alot easier than running a new wire.
The 2 headlight relays(one for each side), and the Rear defogger relay.
All those relays are the same type, roundish, mounted in a bracket, left of the steering column.
RH headlight= black connector
LH headlight=green connector
Rear defogger= blue connector
Blower relay connector should be white, or clearish. Swap it with the defogger relay as a test.
Posted 20 January 2008 - 02:00 PM
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