Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

ECM/ECU Repair

Thread Tools
 
Search this Thread
 
Old Jun 11, 2019 | 10:10 AM
  #1  
rdayt's Avatar
rdayt
Thread Starter
|
Freshman User
Joined: Nov 2018
Posts: 35
Likes: 0
ECM/ECU Repair

I have an ECU from a 1994 F150 5.0 with a bad cap.
I can repair the board if I could tell where the traces were supposed to go.
Does anybody have a schematic or a picture of that the traces are supposed to look like?
Any help would be greatly appreciated.


 
Reply
Old Jun 12, 2019 | 07:13 AM
  #2  
subford's Avatar
subford
Fleet Owner
20 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
This should be it:
Name:  weYFB6K.jpg
Views: 78
Size:  27.7 KB

This looks like the same circuit also:
Name:  EL0b6cw.jpg
Views: 75
Size:  22.5 KB
/
 
Reply
Old Jun 12, 2019 | 07:34 AM
  #3  
rdayt's Avatar
rdayt
Thread Starter
|
Freshman User
Joined: Nov 2018
Posts: 35
Likes: 0
Thanks Subford,
There are three traces that converge under the negative side that have come off and I'm trying to figure out if they are connected.
There's not enough left of what came off with the cap to tell.
I've got the traces that are there cleaned up, straightened up and tinned. Two of them appear to go to empty component spaces but with multi layered boards it's hard to tell.
Thanks again
Randy
 
Reply
Old Jun 12, 2019 | 08:05 AM
  #4  
subford's Avatar
subford
Fleet Owner
20 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
I think that cap should have one leg going to ground (pin 46) and the other going to VPWR (pins 37 & 57).
 
Reply
Old Jun 12, 2019 | 09:28 AM
  #5  
rdayt's Avatar
rdayt
Thread Starter
|
Freshman User
Joined: Nov 2018
Posts: 35
Likes: 0
This is what I've been able to puzzle out so far.

These three traces are connected to the negative pad under the cap.

These are the remnants of the negative terminal showing what appear to be trace material that connects the two side traces.
Subford, that second picture almost shows what I'm talking about.

Randy
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Paul Yager
2017 - 2022 Super Duty
8
Dec 4, 2017 12:29 PM
Hackerdcd
Bed Covers, Tonneau covers, Toppers/Canopies & Bed liners
3
Dec 7, 2015 10:05 AM
GamerGirlAlice
1967 - 1972 F-100 & Larger F-Series Trucks
4
Sep 13, 2013 07:50 AM
racsan
1983 - 2012 Ranger & B-Series
1
Aug 6, 2009 10:33 AM
Blaster77
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
11
Nov 27, 2007 09:16 PM




All times are GMT -5. The time now is 01:30 PM.

story-0
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-1
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-2
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-3
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-4
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-5
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-6
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-7
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-8
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-9
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE