Date: Tue, 4 Jan 2000 21:35:13 -0500
Reply-To: John Lauterbach <jhlauterbach@EMAIL.MSN.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: John Lauterbach <jhlauterbach@EMAIL.MSN.COM>
Organization: Microsoft Corporation
Subject: Re: more dumb questions
Woody, the electrical schematic that you need is on Page 97.55. The
ignition control module is on the left hand (drivers side) of engine
compartment just ahead of the idle stabilizer and the coil. It looks like a
very large transistor mounted on a heat sink. It has a seven-wire connector
leading into it.
Trick here is to find which pin of the connector to the ECU is pin 1. To do
this, remove the connector from the ECU and the connector from the ignition
control module. Set your ohm meter to the highest setting (like x 1Meg).
Put one probe on pin 7 of the connector to the ignition control module and
then find the pin of the connector to the ECU that gives essentially 0
resistance. The one that does so will be pin 1. As I remember, it is the
top right hand one as you look at the connector. Pin 25 (opposite row at
the bottom) should give 0 resistance to chassis ground. Pin 2 should give 0
resistance when checked against one of the two pins on the connector to Temp
Sensor 2.
Hope this helps.
John
----- Original Message -----
From: Woody Halsey <WoodyHalsey@compuserve.com>
To: John Lauterbach <jhlauterbach@EMAIL.MSN.COM>
Sent: Tuesday, January 04, 2000 7:28 AM
Subject: Re: more dumb questions
Dear John,
Thanks for your rapid reply. Can you bear with me just a bit more and lead
me further down the path towards
enlightenment?
> Find the appropriate
> electrical schematic.
Can you give me a Bentley page reference?
> Disconnect connector from ECU along with connectors
> from Temp Sensor II and Ignition Control module (pinouts are marked on
that
> connector).
What is the "Ignition Control Module?" Does it go by another name as well?
> I used ohm meter to confirm connection and the double checked by
> ohming out pin to Temp Sensor II
Can you explain exactly how to do this? Does "confirm connection" mean
that your ohm meter reads zero or close to zero ohms? Where exactly did you
place your meter probes? Does "ohming out" mean doing the same thing, that
is, checking for resistance? I don't see how you are carrying out two tests
here : confirm connection" and "ohming out pin to Temp sensor 2."
Thanks a lot. As you can see, I am real beginner with this stuff, but I am
the proud owner of a new Craftsman multi-meter (Model 82028 -- BTW, are
they any good?) and I am determined to master at least the basics and get
my engine running smoothly and efficiently.
