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Fox Went looking for trouble, found it. Code 15. no chip, good 12v to pin 1.

  • Thread starter Thread starter ChaseRoads
  • Start date Start date Oct 16, 2022

ChaseRoads

do I need to lube this area?
Oct 29, 2020
220
73
38
midwestern america
Oct 16, 2022
#1
  • Oct 16, 2022
  • #1
Alright, was tinkering of the fox, looking for stuff to fix. Fixed the door chime. Decided to test out my ODB1 scanner because I never used it. Got code 11, great! then I got code 15.. not so great. Pulled the ecu thinking the ecu had a chip on it, nope.. In fact, I am 99% sure This is the first time the kick panel or ecu had ever been off. Checked for 12v at the connector " bottom right opposite side the locating tabs right?" and it has 12 v. That's where I stopped. I have another ecu on the shelf, it's for when I stick shift swap the car, but I kinda wanna confirm my issues before I start changing things. What else can I check? Did I check the right pin? I left the lights on the other day and drained the battery, would that cause it?
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,933
10,575
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polk county florida
Oct 16, 2022
#2
  • Oct 16, 2022
  • #2
If the battery went dead that could throw that code,
 
Reactions: Mustang5L5

ChaseRoads

do I need to lube this area?
Oct 29, 2020
220
73
38
midwestern america
Oct 16, 2022
#3
  • Oct 16, 2022
  • #3
Ok. I left the ecu out for a couple hours and put it back together. Car runs fine. I’ll drive it a few days and see what’s she does
 
Reactions: General karthief

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,260
17,944
224
Massachusetts
Oct 17, 2022
#4
  • Oct 17, 2022
  • #4
Code 15 will show if the batt dies, or if you just hook the ecu up to power and dump the codes.

You need to connect it to power and give it a couple drive cycles without power interruption before dumping the codes.
 
Reactions: General karthief
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