EATC diagnostic Codes?

[Lou]

I know there's a way to retrieve the diagnostic codes but for the life of me I can't find them.

Once I get it is there a cheat sheet?

[LeoVampire]

Key on, engine running: Press OFF and FLOOR simultaneously, then press AUTOMATIC within 2 seconds. The EATC will have to run some tests and do some thinking. It may take up to 30 seconds. Soon it may display some codes. Write these down. To exit self test press DEF

EATC System self test error code list

024 Fault in blend door calibration during self test

025 Intermittent fault in blend door calibration

030 Self test indicates automatic temperature control sensor shorted

031 Self test indicates automatic temperature control sensor open

040 Self test indicates ambient sensor short

041 Self test indicates ambient sensor open

042 Ambient sensor intermittent short

043 Ambient sensor intermittent open

050 Self test indicates sunload sensor short

052 Sunload sensor intermittent short

115 Intermittent engine coolant temperature signal

125 Intermittent vehicle speed signal...

[rauder775]

I got "888" as others have...what is it?

Thanks

[LeoVampire]

I got "888" as others have...what is it?

Thanks


Test compleat no codes or problems

[Lou]

I know there's a way to retrieve the diagnostic codes but for the life of me I can't find them.

Once I get it is there a cheat sheet?

I got 024. So it's the blend door. Now what?

Do I just give up and take it to the stealer ,,... ops I mean dealer???

[Pat]

I tried the test but couldn't get it to work.

How long do you hold the OFF and FLOOR down together? Is there some display that signals a test is being performed?

I waited more than 30 sec (as per my watch) but no codes, no 888, just normal display.

I did as the instructions indicated but nothing happened except the AC working OK.

What did I miss?

I'm interested because my ETAC is intermittent in routing air through the vents even though the blower fan is working and controllable.

Thanks,

Pat


OK, got it to work, both on my MM and GM. Guess I didn't have the sun in the right quadrant. There is a revolving curser as the test is running. Both cars tested good with an 888.

[Lou]

I got 024. So it's the blend door. Now what?

Do I just give up and take it to the stealer ,,... ops I mean dealer???

Anyone have any good ideas?

[4play]

I got that code once too, it was stuck blowing hot. i cleared the code and all was well, been 6 months now, no problems at all. "knock on wood"