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Old 10-25-2007, 11:48 AM
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JimF JimF is offline
'94 S500: only 793 sold!
 
Join Date: Mar 2001
Location: San Diego, CA
Posts: 1,933
Quote:
Originally Posted by emerydc8 View Post
DM ECU:
DTC 4 = AIR inoperative
DTC 6 = Idls Speed control inpoerative
DTC 19 = Fuel injectors bad or self-adaptation in LH-SFI control module (N3/1) at limit

EA/CC/ISC ECU:
DTC 3 = EA/CC/ISC actuator (M16/1)
DTC 6 = Starter lock-out/backup lamp switch (S16/3)
DTC 11 = Fuel safety shut-off to LH-SFI control module


. . cleared all but the DTC 19 on DM module (as expected) and the DTC 3 on EA/CC/ISC module.

I know what's causing the DTC 19 and it's probably been there for an half decade. The only remaining code that's a problem is DTC 3 on socket 7, which (I think) is the cruise control. I'm wondering if I spiked something when I took off the ETA with the engine running.

I read that there is a fuse in the diagnostic module. Could that be the problem (or maybe another fuse in one of those modules)?
OK, good deal . . now there's a base from which you can proceed.

DM: #4: Either the AIR pump is bad or the vacuum line is broken to the AIR pump. Do you hear the AIR pump start on a cold engine??
#6: the "CC" is in the EA module but personally, I've never seen a bad EA module. That code, most likely, is caused by other problems. . .
#19: Maybe you have a bad injector or vacuum leak that will cause DTC#19. Check those areas and see what you find. If all is ok, I have a eprom that will fix that.

EA: #6: I would change the S16/3 asap! You read what caused my "ETA" problems and it was the switch. The contacts were corroded. MENU#24 at the bottom of the page.

There's fuses in the Base Module (Menu#8); none in the DM module.
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Last edited by JimF; 10-25-2007 at 12:19 PM.
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