[ba] orange light on 4kQ

Ti Kan ti at amb.org
Fri Feb 21 17:31:01 EST 2003

Yeah, except that the 4KQ doesn't have CIS-EIII.  It has plain old CIS-E.
There is no code to dump because the ignition and fuel system ECUs don't
have such capability.  In fact, the 4KQ isn't supposed to have such a warning
light at all.  Now, the 4-cylinder 4KS from 85-87 has a digital knock
sensing ignition system and there is such a light that illuminates
when the knock sensor detects pinging.  The 4KQ doesn't have knock sensors.

Are you the original owner?  Perhaps someone has swapped instrument
clusters from that of a 4KS, or parts of the instrument cluster?
If such is the case, what that light is showing is perhaps really
another function, because the wiring is different between the 4-cylinder
and 5-cylinder cars.  Seat belt reminder?

2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
    ///  Ti Kan                Vorsprung durch Technik
   ///   AMB Laboratories, Sunnyvale, CA. USA
  ///    ti at amb.org
 //////  http://www.amb.org/ti/

Brian Devlin writes:
> That's the fault indicator light, but I'm not sure
> what things can trigger it on a 4k. In general, bad
> things make it come on (duh). Next time it happens,
> read your codes. I can look up the codes for NF (CIS-E
> III) and MC (CIS) motors when you get them.
> -Brian
> >On startup of my 4kQ , inside the warning panel (like
> >the voltage light,
> >coolant light, just below the stock shift light) the
> >upper left hand box
> >lights up in orange with something that looks like a
> >motor with a electronic
> >bolt on the side, i checked my audi manual and it
> says >it is a free box...
> >anyone know what this represents? It turns off after
> >about 5 seconds from
> >startup.
> >
> >-Johnny>

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