Where does the check engine light originate from?
#17
12-22-2018, 08:07 PM
Join Date: Jan 2012
Location: Somewhere in the universe
Posts: 472
Likes: 0
Received 2 Likes
on
2 Posts
Can an anybody give me some guidance on where about to look for it?
#21
12-23-2018, 08:37 AM
Cargo Master
For the "Check Gauges" light(if engine is too hot or loose oil pressure) you will use pin #12 of C251, BUT I recall there is a small PCB hooked on the cluster that monitors the temp and oil sensors and outputs on pin#12 if either one is out of safe range.
As you are making up a instrument cluster with better gauges, I would not worry about the pin#12 of C251. Just use the pin #9 of C251. That pin goes back to pin #17 of the ECU for the "Check Engine" light to work
#22
12-23-2018, 10:11 AM
Join Date: Jan 2012
Location: Somewhere in the universe
Posts: 472
Likes: 0
Received 2 Likes
on
2 Posts
Thank you very much gentleman. I wouldn't have been able to do this project with out you.
Merry Christmas to you and yours.
PS, I almost started terminating unused wires last night but I figured I'd wait until the project was test ran and the bugs were worked out first to be on the safe side. Close one.
Merry Christmas to you and yours.
PS, I almost started terminating unused wires last night but I figured I'd wait until the project was test ran and the bugs were worked out first to be on the safe side. Close one.
#23
12-23-2018, 09:23 PM
Cargo Master
Thank you very much gentleman. I wouldn't have been able to do this project with out you.
Merry Christmas to you and yours.
PS, I almost started terminating unused wires last night but I figured I'd wait until the project was test ran and the bugs were worked out first to be on the safe side. Close one.
Merry Christmas to you and yours.
PS, I almost started terminating unused wires last night but I figured I'd wait until the project was test ran and the bugs were worked out first to be on the safe side. Close one.
I redid engine bay wire harness on my 89 F250 and after wrapping it up, found some issues that snuck in. Not fun destroying a freshly wrapped harness.
Happy Xmas too
#24
01-05-2019, 12:41 PM
Join Date: Jan 2012
Location: Somewhere in the universe
Posts: 472
Likes: 0
Received 2 Likes
on
2 Posts
@subford Just doing my double and triple checks here.
Which wire should I be using for the Low charge / Low battery warning light?
Lt Grn with red strip?
I thought I was looking for an output wire instead of an input?
The Red with Lt. Green is being hooked to a 12V source to activate the alt and I can't see that being used for a warning light. Or am I wrong?
Which wire should I be using for the Low charge / Low battery warning light?
Lt Grn with red strip?
I thought I was looking for an output wire instead of an input?
The Red with Lt. Green is being hooked to a 12V source to activate the alt and I can't see that being used for a warning light. Or am I wrong?
#25
01-05-2019, 05:21 PM
Cargo Master
Thread
Thread Starter
Forum
Replies
Last Post
F-250 WARHORSE
1973 - 1979 F-100 & Larger F-Series Trucks
5
02-06-2018 10:11 PM
AbusedAmericanRust
1973 - 1979 F-100 & Larger F-Series Trucks
6
11-16-2015 01:10 AM
pecanguy
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
14
08-31-2013 08:09 AM