Still fighting. I cannot clear the codes now. I run through all codes, 419 only code now. try to clear and cannot get the 1 1 1 all good code, everytime I try to clear I stll get 419

Thanks Ben I have looked inside and see nothing. I am looking for schematics for the ECC and the power stage to trace down the problems. The loose wire still concerns me

the bundle of wires next to it are the ECC controller wires, all orginal stereo

The saga continues, I replaced the fan and the same, fan runs 2-3 seconds and then the evil flashing lights. Codes 418 and 419 asnd I cannot clear the codes? Today I removed the ECC controller for one more look. all appears OK. I found a wire loose behind the ECC but none of the connectors seem to b...

Thanks Lee

I have removed and checked the ECC controller and see no charred spots, I got a power stage from the salvage yard and now the fan runs for about 2 seconds(did not run at all before). I have order a new fan. The fan does not spin as easy as I think it should.

Thanks Everyone

This is driving me crazy and it is hot in southeast Texas.

Ozark Lee

Thanks for the down load, I used a IRFP048 I had laying around.
Update, I replaced the power stage, now the fan runs for about 2-3 seconds and shuts down. I get a 419 code, I assume the motor is drawing too much current.

Any sugestion are welcome

Thanks everyone

jblackburn,

Thanks you very much. I got 418-no control signal to blower fan power stage, is there any diagram showing the path of this signal?

I know this information is here, but I have looked until my eyes are bleeding. If someone can provide links it will help much, Fan does not run, lights flash. This is the auto AC unit I have: 1. Checked motor and oiled bearings, still not sure it is not drawing too many Amps 2. Cleaned both D and P ...