In a message dated 08/31/1999 3:51:52 PM Eastern Daylight Time,
webbd@... writes:
According to my owner's manual, if there has been a malfunction anywhere in
the ECS, a code will be stored (for the dealer to ready?). But you are
supposed to be able to read it yourself by connecting some sort of strap
between some contacts and something near the gearshift. Does anyone know
how to do this? My owners manual is pretty vague about it.
Dennis -
Below is a copy of an earlier posting I provided on this subject:
===========================================================
Subj: EV: Do it yourself fault code analyzer
Date: 2/2/99 1:24:01 PM Eastern Standard Time
From: WSArmstron@...
Sender: ev_update@...
Reply-to: ev_update@...
To: ev_update@... (Multiple recipients of ev_update)
Browsing Jan's VW Page, or "The V Files", (
pal.usc.edu/~jan/cars.html ) I came across info on a do it yourself fault code
analyzer for VW ( ). This
may be of interest to those of you that wish to troubleshoot the "Check Engine
Light" (ref: EV_UPDATE thread 10/27/98-12/28/98) without a large monetary
investment.
The article includes instructions on making the tool, how to tie it into
the
vehicle harness, test procedures, and the 4 digit fault codes. I assume that
the section labeled "From March 1990 / 4,5,6 and 8 cylinder" is valid for the
EV. The text below is the lead-in to the article.
Bill Armstrong, future EVC owner
'71 Econoline (home brew camper)
'93 Tracer Wagon
BTU TECHNICAL PUBLICATION FAULT.VW 04/13/95
FAULT CODE DIAGNOSTIC REFERENCE FOR VOLKSWAGEN & AUDI
> Volkswagen and Audi models beginning with production year 1988 utilize a
system of injection, ignition and emissions fault diagnosis. These faults
can be
easily read with a simple set of tools and this document.
The tools needed consist of a simple test light and a small jumper wire
with
alligator clip ends. (Jumper wires are normally sold in pairs. One can be
used to
construct the test light below.)
The test light can be constructed with an LED, a 330 ohm 1/4 watt
resistor and a
jumper wire with alligator clips at each end.
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