1993 850 ECC Failure and Climate Control Codes

jptorny · Post by **jptorny** » 28 May 2014, 12:48

My ECC has recently given up - when I turn the vehicle on, the recirc and AC lights flash for 20 seconds or so. I pulled the codes for climate control, and pretty much everything comes back. I get 11 codes (126,132, 134, 135, 211, 231, 235, 322, 325, 417, and 418). I find it awfully coincidental that all of these items stopped simultaneously. Does this suggest that my ECC itself has failed?

Thanks.

Post by **Ben850** » 28 May 2014, 14:23

The quick answer is Yes.
My '93 did. They have a known, and well documented history of burning up a few capacitors internally. You will get extraneous codes.
Late '95-97 have a more solid state designed board. Find a salvage piece.
Do a search for ECC unit, especially '93 850. There is much to read. Also, check the repair database.

jptorny · Post by **jptorny** » 28 May 2014, 14:27

Ben850, thanks for your reply. I'll plan on hitting the local Pick n Pull to find a new ECC.

Post by **dosbricks** » 28 May 2014, 19:24

These are cake to change out. Just pull the radio forward (no need to unplug it) and reach up behind the ECC and push it out.