shoebox

With the fans back in stock configuration, do they come on when you jump the DLC to retrieve trouble codes?

jcatelo

Thanks 93z, did they tell you how much it cost including labor? or can we just buy outside. my ignition key has this key chip that I do not know if we need the dealer to calibrate every component?

nintythreeZ28

Shoebox- no they do not.

Jcatelo-i wouldn't go straight to a shop its probably an easy fix just hard to trace down the problem. As far as pricing idk it probably depends where you take it

Kevin Blown 95 TA

I think when I originally did it, I wired the dark green and dark blue wires at the fuse box to one side of a double pole switch and the other side to ground. So when you throw the switch, the relay coils get the ground and the fans turn on. Otherwise the switch is open and the computer controls the fans.

nintythreeZ28

well according to you i do in fact need a new ecm?

shoebox

You need to take a schematic and prove where the trouble is. You need to see if the ECM is putting out a ground to the fans when the fans are commanded on. Don't assume anything is wrong until you prove it is.

nintythreeZ28

So a lot of test light?

shoebox

Do not use a test light when testing anything towards the computer. You need a multimeter with at least 10 megohm impedance (most digital meters meet this requirement).

nintythreeZ28

Ok then I guess just warm the car up till the fans should be running and check it with that? I really don't know anything on this subject