AE KOER Switch Test
Thread Starter
|
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
AE KOER Switch Test
So I ran some diagnostics on my truck today. Wanted to see how the injectors and other things are doing and when I ran a KOER Switch Test this is what I received....
Any thoughts?
Any thoughts?
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
You were supposed to push all those things that gave you codes.
Key On Engine Running (KOER) Switch (SW) Self Test
Key On Engine Running (KOER) Switch Self Test is a functional test of the PCM performed on demand with the engine running. This test is designed to set DTC(s) if the test does not detect a transition on one or more of the switches. After pressing the trigger to start the test, wait 5 seconds before running through the driver-operated controls to eliminate the chance of setting a false IVS code. The accelerator pedal must first be depressed and released to begin test, then the Parking Brake, Speed Control ON, OFF, SET, RESUME, COAST, Transmission Control or Clutch. The last to be depressed and released must be the brake pedal, which will test both the brake pressure applied (BPA) switch and the brake ON/OFF (BOO) switch.
Key On Engine Running (KOER) Switch (SW) Self Test
Key On Engine Running (KOER) Switch Self Test is a functional test of the PCM performed on demand with the engine running. This test is designed to set DTC(s) if the test does not detect a transition on one or more of the switches. After pressing the trigger to start the test, wait 5 seconds before running through the driver-operated controls to eliminate the chance of setting a false IVS code. The accelerator pedal must first be depressed and released to begin test, then the Parking Brake, Speed Control ON, OFF, SET, RESUME, COAST, Transmission Control or Clutch. The last to be depressed and released must be the brake pedal, which will test both the brake pressure applied (BPA) switch and the brake ON/OFF (BOO) switch.
Thread Starter
|
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
Well, ran the test just now and still got the P0220 so sounds like I may need a new TPS at some point. I push it all the way to the floor and let it up real fast, rapped the truck out a bit, not to bad.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
If you're not having any issues, I'd just ignore it. The false IVS code is common enough they even warn you about waiting 5 seconds before you push the accelerator to try and avoid setting it.
Trending Topics
Thread Starter
|
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
ahh, well good to know. I'll check out that thread and thanks again guys, you guys are worth your weight in Gold.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
That's some good info Chris.
Thread Starter
|
Posting Guru
Joined: Apr 2009
Posts: 2,447
Likes: 1
From: Northern Idaho
Well good to know. I actually do have a very slight and mild roughness that I only notice at low speeds when I'm chugging along at about 25 in 4th at about 1K rpm on lvl ground. So the error may be right, that my TPS is going out but not at all quite there yet.
Can they be taken apart and cleaned or they a replace only part?
Can they be taken apart and cleaned or they a replace only part?
Thread
Thread Starter
Forum
Replies
Last Post
Visseroth
1999 - 2003 7.3L Power Stroke Diesel
8
Feb 10, 2012 09:29 AM
texasyakfisher71
1987 - 1996 F150 & Larger F-Series Trucks
3
Aug 3, 2010 01:30 PM
