engine code 25, IAC

BigAl

Expedition Leader
I am getting engine code 25 on a 93 4.0. i replaced the idle air controller and disconnected the battery but the light came back. i checked for vaccum leaks. any ideas?

edit; the jeep seems to run fine
 
Last edited:

Maximus Ram

Expedition Leader
DId you recheck and see if the code is cleared ? If the problem is fixed, I believe you can pull the - battery cable for about 15 minutes or so and that should reset it...if not, I think that it will reset itself after 50 starts..
My best guess-alection..:smiley_drive:
 

baca327

Adventurer
Assuming you plucked that 93 4.0 from a yj I just looked on alldata and its showing code 25a is a/c clutch relay circuit.. Hope this helps
 

BigAl

Expedition Leader
I did remove the battery cable. all of the trouble code s on internet I've found say 25 is the IAC???

An open or shorted condition detected in one or more of the idle air control motor circuits; or Actual idle speed does not equal target idle speed
 

baca327

Adventurer
Before I start you are solely responsible for anything you do to your vehicle, Im posting this for you for your knowledge not to tell you what to do. Ok so under Trouble code 18 it has the IAC motors and circuit. .
41822356


155253566


155253567
 

baca327

Adventurer
It was up the day I posted it pm me and Ill email it to you.. Sorry bout that probably cause I logged out.
 

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