MTLEADER Posted October 26, 2021 Share Posted October 26, 2021 I was heading into my town from my house today to run errands when my car just stalled and a lot of the lights on the dash came on. 1 Blind spot system fault/ 2 steering assist fault/ 3 pre collision assist not available/ 4 A wrench that said see manual/ 5 Cross traffic system fault. So I connected my code reader no DTC in system check so I checked ABS got codes there and in KOER and others. Here are the codes P1780-00, P06e4, P1703-00, U2002-96, U300A-29. I don't really understand all this code stuff. Is this telling me my PCM is bad ? And if so how did this happen, and if not what is bad on my car ? I need some help here please. I think this is going to cost me a lot from my pocket if it can get fixed. 0 Quote Link to comment Share on other sites More sharing options...
bbf2530 Posted October 26, 2021 Share Posted October 26, 2021 10 hours ago, MTLEADER said: I was heading into my town from my house today to run errands when my car just stalled and a lot of the lights on the dash came on. 1 Blind spot system fault/ 2 steering assist fault/ 3 pre collision assist not available/ 4 A wrench that said see manual/ 5 Cross traffic system fault. So I connected my code reader no DTC in system check so I checked ABS got codes there and in KOER and others. Here are the codes P1780-00, P06e4, P1703-00, U2002-96, U300A-29. I don't really understand all this code stuff. Is this telling me my PCM is bad ? And if so how did this happen, and if not what is bad on my car ? I need some help here please. I think this is going to cost me a lot from my pocket if it can get fixed. Hi MTLEADER. First thing to do is have your battery professionally load tested. Or if the battery is older than 3-4 years, think about just replacing it now. Our vehicles are very computer/electronic/electrically intensive, and a weak/failing battery can cause all sorts of electrical/electronic gremlins/faults such as this. The Ford Owners website often has coupons for a free battery test on the Ford Fusion Owners website, in the Service section. And many Dealer websites will also have the same coupons available. Also, is your Fusion still within the 3 year/36,000 mile New Vehicle Warranty period, or the 5 year/60,000 mile Powertrain Warranty period? If yes, make a service appointment. Perhaps one of our tech members will also jump in with some advice. Keep us updated and good luck. 0 Quote Link to comment Share on other sites More sharing options...
drolds1 Posted October 26, 2021 Share Posted October 26, 2021 Good advice from bbf2530 to start with the battery. If that's not the answer, the "U" codes that you've got seem to indicate some kind of CAN-BUS communication problem. There may be a wiring issue such as a short. IDK if your PCM is failing, but if it is, it's covered under the 8/80 federal emissions warranty. You're going to need a professional diagnosis. 1 Quote Link to comment Share on other sites More sharing options...
MTLEADER Posted October 27, 2021 Author Share Posted October 27, 2021 It wasn't the battery I replaced it and poof all the same again. Is there a way to clear the cars memory by unplugging the battery, some set amount of time ? And now I'm kind of hoping it's the PCM lol. That would be the second thing the 8/80 warranty has fixed though. Me and my lady (more so her now) love this car but I'm thinking bout trading it in now for a Chevy!! J/K Can anyone here help me with the part where it may be a shorted wire, like how to trace it or how to find it to start with? I'm not to bad with the mechanical parts on a car but the electrical part is lil different. I am very DIY inclined but also know if it looks like another language it is and find a translator. If I have a start point though I may have some luck, I can give it a try for a day or 2 until I figure out how I'm getting my car to the dealership I prefer to have work on my car it's only 2 towns over from me LOL. Man if only this car had a 60's, 70's or 80's motor in it I would be goldened. It was what 7 to 12 wires for the main harness in those days 0 Quote Link to comment Share on other sites More sharing options...
MTLEADER Posted October 28, 2021 Author Share Posted October 28, 2021 (edited) Ok so I had some time this afternoon and I made an appointment with my not so local Ford dealership the one I prefer in Victorville, Ca. is booked for almost 3 months solid. That is crazy BTW. Anyways I got the new battery in after resetting the codes with the old battery in it. And after then new one was put in started the car up to run a OBD scan and 2 new codes came but one old one stayed U300A-29 stayed, new codes are B00a0-68 and U0401-81. So I'm thinking some way the PCM is damaged but how? I'm not a person who is never wrong so could be a short also but all the faults also showed on the interment cluster again also and the car died. The battery also seems to be draining when car is connected to it and off don't know what that is all about. My appointment isn't tell the 10th of next month so guess I'll be walking the 22 miles to my town from my house for a bit that will be healthy though huh LOL. Have read other answers online and for almost every car with almost same issue as mine it ends up being a speed wheel sensor. Mine on the driver side somehow the bracket on the strut was bent into my inner sidewall rubbing the tire, so I bent it back a bit to fix the rubbing, maybe I should replace that sensor what you guys think ?? Edited October 28, 2021 by MTLEADER 0 Quote Link to comment Share on other sites More sharing options...
Waldo Posted October 28, 2021 Share Posted October 28, 2021 (edited) The codes you're getting seem to be pretty random - as in they don't point to one specific system, but rather to an overall network issue. I'd agree that your most likely issue is a short or bad connection in some wiring somewhere. Bad wiring could even cause the system to stay "awake" which is what's causing your battery drain issues. A bad wheel speed sensor wouldn't cause those codes you're seeing now and it could never cause the car to stall. Edited October 28, 2021 by Waldo 0 Quote Link to comment Share on other sites More sharing options...
drolds1 Posted October 28, 2021 Share Posted October 28, 2021 I saw one video where there was a bunch of random of 'U' codes and the tech finally traced it to the wiring for the passenger occupancy sensor harness. Apparently the owner thought it was some kind of tracking device and just pulled the wires out! The bare wires were touching/shorting. I'm sure you didn't do anything like that, but it does illustrate how a wiring issue can produce these random network malfunction codes. It also can't to check those under-seat harnesses for starters. 0 Quote Link to comment Share on other sites More sharing options...
MTLEADER Posted October 28, 2021 Author Share Posted October 28, 2021 LOL I'll be doing that later today I have kids and things go under the seats all the time and by logic alone anything is possible. Thanks is there anyway to coheres a Tech guy to come look at this posting BTW? 0 Quote Link to comment Share on other sites More sharing options...
MTLEADER Posted October 29, 2021 Author Share Posted October 29, 2021 drolds1 where can I see the 8/80 emissions warranty at? All I can see on Ford is a 60k powertrain warranty, and I'm passed that now. I think I need to get Forscan cause my reader is just not able to do enough for me. 0 Quote Link to comment Share on other sites More sharing options...
drolds1 Posted October 29, 2021 Share Posted October 29, 2021 https://help.ford.com/warranty/emissions-defect-warranty/ 0 Quote Link to comment Share on other sites More sharing options...
MTLEADER Posted November 7, 2021 Author Share Posted November 7, 2021 Ok I looked couldn't see anything bad or what not so I bought Forscan couple days ago to try and see if it is better than my reader and yes it is here is the reading it took maybe get some answers from it. By my count it is showing 39 codes and I'm a little worried now. As is only place that is a Ford dealership is over 100 miles from me that can work on my car one I want to take my car to is way closer but they don't have an appointment for 3 months. (WARN) [18:53:53.128] Checking FTDI #1:223010175152... (OK) [18:54:09.525] Connection to adapter has been established: FTDI #1:223010175152 (OK) [18:54:09.526] Adapter: OBDLink EX r1.0 STN2230 v5.1.3 (ELM327 v1.3a) (WARN) [18:54:52.489] Loading firmware to adapter: obdlink_ex-5.6.5.bin. Please wait... (OK) [18:54:56.312] Firmware loaded successfully (WARN) [18:54:56.339] Checking FTDI #1:223010175152... (WARN) [18:54:58.503] Checking WiFi... (WARN) [18:55:03.512] Checking COM3... (OK) [18:55:08.201] Connection to adapter has been established: COM3 (OK) [18:55:08.202] Adapter: OBDLink EX r1.0 STN2230 v5.6.5 (ELM327 v1.4b) (OK) [18:55:08.409] Connection to vehicle has been established (OK) [18:55:22.110] Vehicle: Ford Fusion IVCT 2.5L 2019 ( 2019 MY ), VIN: 3FA*********36048 (OK) [18:55:25.249] Found module: PCM - Powertrain Control Module (WARN) [18:55:36.218] DTCs in PCM: P06E4:00-28, P06E9:00-28 (OK) [18:55:36.422] Found module: OBDII - On Board Diagnostic II (OK) [18:55:37.417] Found module: APIM - Accessory Protocol Interface Module (OK) [18:55:40.173] Found module: BdyCM - Body Control Module (WARN) [18:55:44.209] DTCs in BdyCM: B1310:12-08, C113A:11-08, B1240:11-08, P0230:12-88, B1D03:15-48, B1D02:15-48, U3006:17-08, U3007:17-08, B143A:11-88, B115E:08-08, U0100:87-08, U0131:87-08, B143E:15-08, B14AA:15-48, B14AA:11-08 (OK) [18:55:44.824] Found module: BECMB - Battery Energy Control Module B (WARN) [18:55:45.111] DTCs in BECMB: U0100:87-08 (OK) [18:55:46.600] Found module: SODR - Side Obstacle Detection Control Module - Right (OK) [18:55:47.496] Found module: SODL - Side Obstacle Detection Control Module - Left (OK) [18:55:48.280] Found module: HUD - Head Up Display (OK) [18:55:49.401] Found module: FCIM - Front Controls Interface Module (WARN) [18:55:50.508] DTCs in FCIM: B1C83:14-08, U0401:00-08, U0401:81-08, U0401:82-08 (OK) [18:55:51.304] Found module: FCDIM - Front Control/Display Interface Module (OK) [18:55:54.169] Found module: OCS - Occupant Classification System Module (WARN) [18:55:54.604] DTCs in OCS: U0100:00-28, U0401:00-28 (OK) [18:55:55.290] Found module: C-CM - Cruise-Control Module (OK) [18:55:56.538] Found module: ABS - Antilock braking system (WARN) [18:55:58.182] DTCs in ABS: U300A:29-28 (OK) [18:55:59.669] Found module: RTM - Radio Transceiver Module (OK) [18:56:01.558] Found module: PDM - Passengers Door Control Unit (OK) [18:56:02.728] Found module: DDM - Drivers Door Module (OK) [18:56:03.849] Found module: RCM - Restraint Control Module (WARN) [18:56:05.843] DTCs in RCM: B00A0:68-28, U0401:81-28 (OK) [18:56:06.450] Found module: GSM - Gear Shift Module (OK) [18:56:07.460] Found module: PSCM - Power Steering Control Module (WARN) [18:56:07.868] DTCs in PSCM: U3003:16-08 (OK) [18:56:08.525] Found module: ACM - Audio Control Module (OK) [18:56:09.326] Found module: SCCM - Steering Column Control Module (OK) [18:56:11.072] Found module: IPC - Instrument Panel Control Module (WARN) [18:56:12.176] DTCs in IPC: U0100:00-08, U0101:00-08, U0104:00-08, U0131:00-08, U0140:00-08, U0154:00-08, U0184:00-08, U0401:81-08 (OK) [18:56:12.780] Found module: GWM - Gateway Module A (OK) [18:56:15.516] Found module: TRCM - Transmission Range Control Module (WARN) [18:56:15.980] DTCs in TRCM: P2534:00-28 (OK) [18:56:16.781] Found module: IPMA - Image Processing Module A (WARN) [18:56:17.261] DTCs in IPMA: B12D8:13-68 (OK) [18:56:17.966] Found module: GPSM - Global Positioning System Module 0 Quote Link to comment Share on other sites More sharing options...
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