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Hello,
2015 F150 4x4 5.0 just over 100K. Hasn't thrown a code in 7 years. Started the truck I got a CEL and pulled the following codes: P0010, 0013, 0020, 0023, 0135, 0141, 0155, 0161, 0443, 0446. I have never seen this many codes at once. I cleared them and the light stayed off while driving but upon restart, all the same codes returned with CEL. I'm thinking something with a ground or PCM triggered them all at once. Any ideas of where to begin looking?
Update: Took my truck to have the battery tested and they told me I had an "active draw" and they couldn't load test the battery. I disconnected the smaller (Black with purple stripe) ground cable off the battery and the draw was gone. The battery checked out good but the codes still came back on after restarting.
Anyone have any insight to where the smaller negative cable goes to?
Get yourself a multimeter with a DC ammeter clamp. Put it on that wire to see what the active draw is in amps (or milliamps). Then start pulling fuses until it goes away. That will isolate the problem to a particular circuit and at least you will know where to start looking.
I almost hate to reply to questions like this because I usually end up being taken as insult.
Did either you or the dealer ever look up the codes and see what is common and what the code complaints are?
Codes 10, 13 and 20 are Cam sensor >>open circuits.
Codes 135 and 141 are both Ox sensors bank 1 heater circuits >>>open.
Coded 155 and 161 are also Ox sensor back 2 >><open circuits.
Code 443 is Purge valve circuit.
Code 446 is Purge Vent valve circuit.
Why would the battery and current draw be looked at?
You have a Harness issue at some location that is common to all the codes. and a possible blown fuse as a result.
Shame On the Dealer!
You cannot cancel codes to fix wire issues.
Maybe a rodent got hungry from not being fed!
Good luck.
Sounds more like he took it to an auto parts store where you get what you pay for with diagnostics.
Go check fuse F95. Either the fuse is blown/open or its circuit is open. If blown, find and repair the short to ground on that branch circuit.
Leave the battery and its cables alone until you have an actual indication that it is a problem. Unfortunately, the first response to your question sent you on a wasted trip and wrong path.
Hindsight is always 20/20, and the cost was $0 but 10 minutes time. We often see people with 2-3 year old batteries that do not hold a high enough charge to keep all the electronics happy, or are not driven enough to keep them fully charged, and an assortment of codes is often the tell sign. Now that the battery and connections, the simple check is done, I agree with others, I would be looking into possible ground or connector issues. Not all of us have diagnostic equipment and come to forums for easy checks prior to taking to a shop, especially a Stealer.
A battery issue would not cause the OP's specific set of codes. They are all common to a single fused circuit that is not receiving power so that circuit needs to be the focus of any diagnostic efforts.
UPDATE: My local dealer was able to find the problem. Turned out to be a short in an O2 sensor preheater causing a dead short. When the ignition key was turned on, it would immediately blow fuse number 95 throw the list of codes. So happy to have my truck back.