both fans run when reading codes
Thread Starter
Junior Member
Joined: Aug 2003
Posts: 24
Likes: 0
Engine: 5.7L
Transmission: 700R4
both fans run when reading codes
On my1988 IROC 5.7 I need to short 5 & 6 on the diagnostic port to read the error codes. That works fine, but whenever I do that, both fans run. I haven't seen any mention of this anywhere, and I doubt that it's supposed to be happening. Any ideas? Thanks-
jb
jb
Supreme Member
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
You must be counting numbers from left to right on the top of the ALDL? Anyways, if you're shorting the two correct pins (commonly referred to as A and B..far upper right two pins) then both fans should run.
P.S.
Welcome to thirdgen.org
P.S.
Welcome to thirdgen.org
Supreme Member
Joined: Nov 2001
Posts: 4,456
Likes: 3
From: Ocean, NJ
Car: Check The Sig
Welcome to thirdgen.org! and i also found that out, only one of my fans turned on... i didnt know both were supposed to... oh boy... is my secondary fan/relay crap? better take myself over to electronics or cooling... Thanks newbie!! i think i found my cooling problem.
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