DTC on 2002
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
Fuse #2 on the inside panel supplies the PCM and other dash functions, ETAC, overhead console etc..
Are there any other functions not working? If yes, this fuse is blown, if no, the lead to pin 55 of the PCM is open or has a high resistence, dropping the keep alive power to the PCM, to low.
The other code is telling you the intake air sensor is open or not plugged on, harness etc.
Are there any other functions not working? If yes, this fuse is blown, if no, the lead to pin 55 of the PCM is open or has a high resistence, dropping the keep alive power to the PCM, to low.
The other code is telling you the intake air sensor is open or not plugged on, harness etc.
Trending Topics
Thread Starter
|
New User
Joined: Jul 2007
Posts: 10
Likes: 0
Bluegrass where can this part be found so I can check it
"the lead to pin 55 of the PCM is open or has a high resistence, dropping the keep alive power to the PCM, to low."
Is that under the hood and what side? And which is pin 55?
"the lead to pin 55 of the PCM is open or has a high resistence, dropping the keep alive power to the PCM, to low."
Is that under the hood and what side? And which is pin 55?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
Measure the voltage at the fuse with a meter first.
once with the fuse in place and once with it out.
There should be little difference in voltage of maybe a half volt with fuse in or out.
If a large difference; there is something from one of the circuts it feeds that is loading the line down.
The next thing to do if this condition is found is to put a small interior lamp in place of the fuse and disconnect circuts that are hooked in, to see when the lamp dims.
The fuse is a 5 amp so the current is probably small unless it has blown the fuse.
The PCM is on the riders side behind the kick panel. I doubt the trouble is at that location.
once with the fuse in place and once with it out.
There should be little difference in voltage of maybe a half volt with fuse in or out.
If a large difference; there is something from one of the circuts it feeds that is loading the line down.
The next thing to do if this condition is found is to put a small interior lamp in place of the fuse and disconnect circuts that are hooked in, to see when the lamp dims.
The fuse is a 5 amp so the current is probably small unless it has blown the fuse.
The PCM is on the riders side behind the kick panel. I doubt the trouble is at that location.
Thread Starter
|
New User
Joined: Jul 2007
Posts: 10
Likes: 0
What is the fuse for? ie. PCM or what? the problem that this is happening on is a 02 Stang with the 3.8 and I figured that they might be alike. I did check the fuse and it stayed the same with the fuse on and off.
Thread
Thread Starter
Forum
Replies
Last Post
awillo0406
1999 - 2003 7.3L Power Stroke Diesel
20
May 7, 2013 02:58 PM
MiamiPSD
1999 - 2003 7.3L Power Stroke Diesel
2
Feb 6, 2013 05:08 PM
