GTEyes Posted June 13, 2024 Report Share Posted June 13, 2024 As expected with these sort of things, it didn't do it a single time on the drive home. However, I had the HVAC system off, so perhaps that adds some strength to the idea of electric loading being the cause. They did replace the battery in my Edge before I took delivery 🤔  I will continue to monitor and see what I observe!  Side note, had to pull away quickly from a stop sign and I am still so impressed with the torque of this engine. It's a gem! 2 Quote Link to comment Share on other sites More sharing options...
Haz Posted June 13, 2024 Report Share Posted June 13, 2024 From the 2024 Edge Workshop Manual...  Auto-Start-Stop System The Auto-start-stop system helps reduce fuel consumption by automatically shutting off the vehicle’s engine while the vehicle is at a complete stop and restarting the engine when the brake pedal is released. The system can be disabled through the auto-start-stop control switch on the instrument panel centerstack. The Auto-start-stop system is automatically enabled whenever the ignition is turned on.  The engine automatically restarts when: the brake pedal is released. the Auto-start-stop system is disabled through the auto-start-stop control switch on the instrument panel centerstack. the battery has a low state of charge. it is necessary to maintain interior comfort. the blower fan speed is increased or the climate control temperature is changed. an electrical accessory is turned on or plugged in. there is low brake vacuum. The Auto-start-stop system may not turn the engine off under these conditions: the HVAC system is in A/C, heat or defrost modes. the rear defroster is on. the battery has a low state of charge. the battery temperature is below 5°C (41°F) or above 60°C (140°F). the engine temperature is below 46°C (115°F). the engine temperature is below 60°C (140°F) and the HVAC system is in heat mode. the gear selector is not in Drive or Sport Mode. the steering wheel is turned rapidly or is at a sharp angle. vehicle speed of greater than 4 km/h (2.5 mph) for more than 2 seconds has not occurred. the vehicle is on a steep road grade. elevation is approximately above 3,048 meters (10,000 feet).  And...  Direct Current/Direct Current (DC/DC) Converter Control Module - System Operation and Component Description  System Diagram  System Operation Network Message Chart  Broadcast Message Originating  Module Message Purpose Engine status  PCM Used to indicate the type of cranking event occurring. If the signal is state 2, Engine Auto Stopped, then the next commanded crank is to be supported. If the signal is state 0, Engine Off, the next crank will be a key crank and the Direct Current/Direct Current (DC/DC) converter control module will not support.  The Direct Current/Direct Current (DC/DC) converter control module, also known as the Voltage Quality Module (VQM), is responsible for boosting battery voltage to specific components on vehicles equipped with the auto-start-stop system. When the ignition is turned on the Direct Current/Direct Current (DC/DC) converter control module initializes after receiving the Run/Start power feed from the BCM controlled run/start relay.  While in stand-by mode the Direct Current/Direct Current (DC/DC) converter control module performs self-diagnostics and is not producing any boost output voltage. The Direct Current/Direct Current (DC/DC) converter control module is simply passing battery voltage straight through to downstream loads when it is in stand-by mode.  The Direct Current/Direct Current (DC/DC) converter control module continuously communicates it's status to the PCM via High Speed Controller Area Network (HS1-CAN). If the Direct Current/Direct Current (DC/DC) converter control module is overloaded, overheated, or other faults are present the PCM disables the auto-start-stop system. If a fault is detected, the PCM may restart the engine if an auto-start-stop event is already in progress. During an auto-start-stop event the engine shuts down automatically after vehicle speed is zero. As the engine begins shutting down, there is an initial battery voltage drop due to the engine shutting off and the alternator no longer providing output current.  Once the engine is no longer spinning, the electrical system is fully supported by the vehicle battery. The electrical load present in the engine off phase of the auto-start-stop event causes a gradual decline in battery voltage. This gradual decline of battery voltage is the second voltage transition. The third voltage transition occurs during the engine restart. The system voltage drops, followed by the system voltage increasing to the regulation voltage point determined by the alternator output.  Prior to the engine restart, the PCM sends a low-side drive command to the the low voltage Direct Current/Direct Current (DC/DC) converter. The low voltage Direct Current/Direct Current (DC/DC) converter is switched into Boost mode to stabilize/boost its output until the engine has started and system voltage regulation is established by the alternator. The converter provides the stabilized or boost output voltage until one of the following occurs: Boost time exceeds 5 seconds System input voltage exceeds targeted output The Direct Current/Direct Current (DC/DC) converter control module has full bypass or stand-by mode functionality within an input of 6V-16V. The Direct Current/Direct Current (DC/DC) converter control module must be able to provide the boosted voltage with a minimum 6V power net input voltage. If the supply voltage goes outside the voltage range, the Direct Current/Direct Current (DC/DC) converter control module recovers without user intervention when the supply voltage returns to the normal operating range. The Direct Current/Direct Current (DC/DC) converter control module determines the stabilized output voltage to be targeted by continuously measuring the Direct Current/Direct Current (DC/DC) converter control module input voltage. Prior to the restart event, the Direct Current/Direct Current (DC/DC) converter control module receives the RE-CRANK signal and sets the boosted output voltage target to be equivalent to the measured input voltage. This makes sure the output voltage to the supported loads does not change.  Malfunction of the system does not lead to non-function of other vehicle systems. The system enters bypass mode if: a thermal overload condition exists. there is a Direct Current/Direct Current (DC/DC) converter control module failure. the output voltage is more than 1V below input voltage and voltage boost is not available. The Direct Current/Direct Current (DC/DC) converter control module self-protects against overheating and self-recovers without user interaction after an overheating event and is internally protected from short-circuits.  Component Description The Direct Current/Direct Current (DC/DC) converter control module is connected in series between the high current fuse box and a select number of non-safety electrical loads. The majority of the loads are fused through the BCM and remaining loads are not fused and are switched on by a smart transistor located internal to the Direct Current/Direct Current (DC/DC) converter control module. The smart transistor acts as a fuse and shuts off power in the event of a short to ground. The Direct Current/Direct Current (DC/DC) converter control module has a dedicated body ground and incorporates a hardwired signal circuit from the PCM which notifies the Direct Current/Direct Current (DC/DC) converter control module prior to the engine cranking during an auto-start event.  Good luck! 1 Quote Link to comment Share on other sites More sharing options...
ben senise Posted July 13, 2024 Report Share Posted July 13, 2024 the real solution is to take back control and install this:  https://www.autostopeliminator.com/collections/ford/products/2021-ford-edge-autostop-eliminator  no affiliation. i have one and am 100% happy with it. when my engine stops for 1 second every time i stop at a stop sign when leaving my home and the temps are near freezing, i simply cannot believe that this is beneficial for the engine or the environment. sure, sitting at a red light for a few minutes i understand but then i can manually engage this feature. 2 Quote Link to comment Share on other sites More sharing options...
STBEAST Posted July 14, 2024 Report Share Posted July 14, 2024 Kudos to ben. Auto start stop is worse on an engine than stop and go traffic. What a great suggestion. Thanks for the info! Quote Link to comment Share on other sites More sharing options...
1004ron Posted July 14, 2024 Report Share Posted July 14, 2024 (edited) I'm surprised that the Auto Stop Start can't be disabled with Forscan - soon after we bought a BMW X5 for my wife I used Bimmercode ($50 app) to code the ASS default to OFF. Â Edit: If it can be done on the F150 it should be possible on the Edge. Â Edited July 14, 2024 by 1004ron Quote Link to comment Share on other sites More sharing options...
Wubster100 Posted July 14, 2024 Report Share Posted July 14, 2024 I though the auto start stop is disabled in FORScan by disabling the BMS. Quote Link to comment Share on other sites More sharing options...
GTEyes Posted November 6, 2024 Report Share Posted November 6, 2024 A little more on this issue. Noticed this morning that the fans for the ventilated seats were surging (making more then less noise). Sounds like something is going on with the part. I will have to get it looked at next service. Â 1 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted November 26, 2024 Report Share Posted November 26, 2024 (edited) Adding this to my next service appointment. Here's a video of the seat fan surging. Anyone ever see or hear this occur on their vehicles? IMG_0501.avi Edited November 26, 2024 by GTEyes Quote Link to comment Share on other sites More sharing options...
Outlook214 Posted November 27, 2024 Report Share Posted November 27, 2024 (edited) Â Yesterday I noticed the heated seat on the driver side is not working. I also verified the cooled feature/fan is not running either. Passenger seat operates normally. Wife said she feels the driver seat has been working intermittently but thought it was just her. The indicator lights on the switch do light up. After some internet searching I have found the heated/cooled seat module part # GU5T-14B663-AA (or similar) typically located under passenger seat in Fords is prone to burning a wire and melting a connector, typically rendering the driver heat/cooling feature INOP, likely due to the driver side being used way more than passenger side. Looking in our Edge I don't see this module under the passenger seat, but I do see a similar module under the driver seat part # GU5T-14C708-JP (off to the right the letters DSM). I am assuming this Driver Seat Module controls the memory seats and the heated seats in our Edge? Anyone with this issue or knowledge of problems pertaining to the Edge ST/ Edge with the memory seats and heated/cooled feature? Edited November 27, 2024 by Outlook214 Pic 1 Quote Link to comment Share on other sites More sharing options...
Wubster100 Posted November 27, 2024 Report Share Posted November 27, 2024 Seat Heater Control Module GU5Z14C724A Edge 2016-2018  Seat Memory Control Module Unit GU5Z14C708BP Edge 2019-2024 1 Quote Link to comment Share on other sites More sharing options...
Outlook214 Posted November 27, 2024 Report Share Posted November 27, 2024 Ok, so there is a separate module for the heater still on my 2020? I was hoping this is the case. Still located under passenger seat? It is cold out and the Edge isn't here, but I am hoping it's just the burnt wire that seems to be the culprit a vast majority of the time on various Ford vehicles. 1 Quote Link to comment Share on other sites More sharing options...
Haz Posted November 27, 2024 Report Share Posted November 27, 2024 (edited) Heating/cooling for both front seats is regulated by Driver Side Front Seat Module (DSM) that you have pictured.  Power to the DSM is protected by fuses F74 and F77, located beneath the underside cover of the Battery Junction Box.  From the 2020 Edge Workshop Manual and Wiring Resource, attached below as PDF documents...  Good luck!  Climate Controlled Seats - Power Distribution - Wiring Diagram - 2020 Edge.pdf Climate Controlled Seats, Left Hand - Wiring Diagram - 2020 Edge.pdf Climate Controlled Seats, Right Hand - Wiring Diagram - 2020 Edge.pdf Driver Front Seat Module (DSM) Connectors Loctation Illustration - 2020 Edge.pdf Front Seats - System Operation and Component Description - 2020 Edge Workshop Manual.pdf Driver Front Seat Module (DSM) - Removal and Installation - 2020 Edge Workshop Manual.pdf Battery Junction Box (BJB) - Top View - 2020 Edge.pdf Battery Junction Box (BJB) - Bottom View - 2020 Edge.pdf Battery Junction Box (BJB) - Fuse-Circuits Listing #1 - 2020 Edge.pdf Battery Junction Box (BJB) - Fuse-Circuits Listing #2 - 2020 Edge.pdf Edited November 27, 2024 by Haz Battery Junction Box (BJB) Illustrations and Fuse-Circuit Listings Added 3 1 Quote Link to comment Share on other sites More sharing options...
Wubster100 Posted November 27, 2024 Report Share Posted November 27, 2024 45 minutes ago, Outlook214 said: Ok, so there is a separate module for the heater still on my 2020? No, there is only 1 module for each seat. The part numbers are from two differing generations of the Edge. Gen 2 2015-2018, and Gen 2.5 2019-2024 Quote Link to comment Share on other sites More sharing options...
Outlook214 Posted November 27, 2024 Report Share Posted November 27, 2024 (edited) Thank you both. I doubt I'll dig very far into this. The memory seat 1/2/3 has worked for the most part since we purchased the Edge new in April 2021. The easy exit/entry never worked properly, sometimes putting us right on top of the steering wheel, despite a new DSM, so we just disabled that feature in the settings menu. So seeing the heat/cool is controlled by the DSM is deflating for me. This has been the biggest POS I have ever owned to be honest and I am a pretty loyal Ford guy. This Edge has tested me and more so my wife so we will likely go in a different direction on our next purchase. Sad because we love the damn thing otherwise, just wish it wasn't constantly needing fixed.   Looking thru the PDF documents that HAZ kindly posted, I feel I can eliminate F74 & F77 because they would affect both front seats and passenger is working. Potentially S374 & S376 could be the culprit, but that seems highly unlikely. My best guess is either at one of the connectors like 341B/C or the DSM itself since they also share the ground G303, again a splice in there that seems unlikely to be bad. Snowing today, so it may be months before I can actually unbolt the seat and get a good look. If we even have the Edge that long. Edited November 28, 2024 by Outlook214 1 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted December 9, 2024 Report Share Posted December 9, 2024 Another update. Both the seats do this...driver and passenger. Sounds like there is a fan in the back cushion that is also turning off and on...I thought only the bottom cushion was ventilated? Â Service appointment at the end of the month so we will see what they say. Â Â 1 Quote Link to comment Share on other sites More sharing options...
Haz Posted December 9, 2024 Report Share Posted December 9, 2024 @GTEyes: From the 2022-2024 Edge Workshop Manual, with emphasis added...  Placing your device cursor over underlined acronyms may yield a popup full-words description of the acronyms.  Climate Controlled Seat Operation The driver and passenger climate controlled seat buttons are selected from the touchscreen. The climate controlled seat system functions independently from the vehicle's climate control system.  The seat cushion and backrest are each equipped with a blower motor assembly. As cabin air is drawn through each blower motor, a Thermo-Electric Device (TED) heats or cools the air, which is then directed into the foam pad where it is distributed along the surface of the cushion and backrest of the seat. Once the system is activated, the SCME uses a set of flexible algorithms to control the heating/cooling modes and the blower speed dependent on the commanded climate controlled seat settings.  The SCME monitors seat cushion temperature while it supplies voltage and ground to both blower motors.  The SCME also supplies a variable voltage signal to control the blower speed. Cabin air enters the blower through an integrated filter attached to the blower motor housing. Heated or cooled air exits the blower motor and flows through the foam pad.  Climate Controlled Seat Heating Characteristics The system control settings are indicated next to each climate controlled seat heat switch button. The first setting is HIGH (3 indicators), the second setting is MED (2 indicators) and the third is LOW (1 indicator) then OFF (no indicators). When heating, the SCME varies the speed of the blower motors and the duty cycle of the integral Thermo-Electric Device (TED) in order to reach and maintain the desired temperature determined by the system control settings. Climate Controlled Seat Cooling Characteristics The system control settings are based on the 3 indicators next to each climate controlled seat cool switch button. The first setting is HIGH (3 indicators), the second setting is MED (2 indicators) and the third is LOW (1 indicator) then OFF (no indicators). When cooling, the SCME maintains a constant blower motor speed and a constant Thermo-Electric Device (TED) supply voltage (duty cycle is determined by the switch setting) in COOL mode. Climate Controlled Seat Recovery Mode NOTE: The presence of overtemperature faults (Diagnostic Trouble Codes (DTCs) B1153:4B, B1154:4B, B1151:4B and B1152:4B) can be induced by incorrectly operating the climate controlled seat system after an initial heat setting has been attained. If a heat setting is repeatedly turned off and on in an attempt to increase the seat temperature or repeatedly toggled between heat and cool modes, an overtemperature condition can result and the Diagnostic Trouble Codes (DTCs) may be set.  If the temperature of one of the blower motors rises above 110° C (229.8° F) in the heat mode or 65° C (149° F) in the cool mode for more than 4 seconds, the SCME records an overtemperature DTC , removes voltage from the Thermo-Electric Devices (TEDs) (part of the blower motor assembly) and goes into recovery mode (blower only) for 30 seconds to cool down the blower motor. The same occurs if a temperature difference of 60° C (140° F) or greater is detected between the backrest and cushion blower motors on either front seat. The SCME continues to monitor the blower motors while in recovery mode. If the temperature of the Thermo-Electric Devices (TEDs) do not drop to 105° C (220.8° F) in the heat mode or 60° C (140° F) in the cool mode after 30 seconds, the system continues to cool the blower motors in recovery mode for up to 5 minutes. If the Thermo-Electric Devices (TEDs) cool down after 30 seconds, but before 5 minutes (checked at 4 second intervals), the system is operating normally. An overtemperature DTC is still recorded even if the system recovers and is operating normally. This is more likely to occur during extreme cabin temperatures with significant seat back sun load. If the system does not recover within 30 seconds in heat mode or within 5 minutes in cool mode, the SCME disables that seat (fault mode) and remains off until the ignition is cycled. Also, if the SCME detects a temperature differential fault twice during the same ignition cycle, the SCME disables the seat. When a fault causes a shutdown, the climate controlled seat indicators turn off and that seat is not operational until the next ignition cycle.  Good luck! 3 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted December 12, 2024 Report Share Posted December 12, 2024 Can someone with the ventilated seats  try turning them on after a cold start in a climate that is close to freezing to see if their seats do the same thing?  I suspect the behaviour is normal.    1 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted January 3 Report Share Posted January 3 Dealer wasn't able to replicate so no fix as no issue was observed (the fans stayed constant). No error faults were found in the system. Â Just looking at all the information versus what's in Ford's workshop manual (Thanks again, @Haz), there is conflicting information. Ford is saying the TED is still used but as people have pulled the seats apart, they are only seeing fans...and the heating function definitely does not use these seat fans, from my own observations. Â Maybe the SMCE is still monitoring temps and that's why it's changing one of the fan's speed...I have no idea. Â The heating function definitely does not use the blowers, so Ford's literature is outdated on that from what I can tell, which means any Ford Technician referencing that is being led astray. Â Sounds like I will just have to live with it. Â 1 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted January 3 Report Share Posted January 3 On 12/12/2024 at 7:23 PM, GTEyes said: Can someone with the ventilated seats  try turning them on after a cold start in a climate that is close to freezing to see if their seats do the same thing?  I suspect the behaviour is normal.    Can someone that lives in a cold climate (close to freezing) please try this? After a cold start, turn the ventilated seats on and observe their behaviour for a minute or two...see if the fans start to cycle on/off on their own.   2 Quote Link to comment Share on other sites More sharing options...
STBEAST Posted January 3 Report Share Posted January 3 I believe everything is normal. In freezing weather, the system is incapable of making the seats cooler (it would be ineffective) and would not activate. It makes sense. When I turn mine on, the fan speed runs faster on the high setting and slower on the low setting. It seems to be constant. The cooling system is definitely TED that's why it gets cold so fast. The fan is only used for cooling and there is no fan with heating. There are so many posts to this thread so I didn't read too far back but hope this helps. 2 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted January 10 Report Share Posted January 10 To add some credence to what's being said by most, the seats are still identified as "Cooled" on the Ford build and price website, so I am going to assume the TED is still being utilized. Â 1 1 Quote Link to comment Share on other sites More sharing options...
omar302 Posted January 10 Report Share Posted January 10 Checking parts list for the front seats of a 2024 Edge shows the same TEDs as all Edges from 2015/2016+. Â Items number 29 & 30 in this link: https://www.tascaparts.com/v-2024-ford-edge--st--2-7l-v6-gas/body--front-seat-components 1 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted January 10 Report Share Posted January 10 2 hours ago, omar302 said: Checking parts list for the front seats of a 2024 Edge shows the same TEDs as all Edges from 2015/2016+. Â Items number 29 & 30 in this link: https://www.tascaparts.com/v-2024-ford-edge--st--2-7l-v6-gas/body--front-seat-components This and the other info. provided by others has been so helpful. Thank you! Â Â Quote Link to comment Share on other sites More sharing options...
mieciux Posted Tuesday at 12:40 PM Report Share Posted Tuesday at 12:40 PM Hi  I read through the entire topic, but it seems my case is a bit diferent, and hopefully someone can advise me on that.  I have 2019 Ford EDGE ST and the problem is with drivers bottom part of the seat. The top part works well. It is hot and cold, no problem. The passanger top and bottom part work as well. The driver bottom part after youy disconnet the car battery is working fine, but after a while it starts and stops and starts again and stops again and the same till it stops working at all. It doesn't matter for herating or venting the seat it is the same. After you disconnect the car battery and reconnett it it si the same story. We changed the driver seat module as well and the heating element, also exchanged the heating element between driver and passanger seat and it is always the same.  What can be a cause for this, what should we look for. No seat specific problems are reported via OBD.  Please point me in some specific direction as we cannot figure this out and it is just heat (pain) in the butt  Thns for all tghe help. 1 Quote Link to comment Share on other sites More sharing options...
GTEyes Posted Tuesday at 03:17 PM Report Share Posted Tuesday at 03:17 PM 2 hours ago, mieciux said: Hi  I read through the entire topic, but it seems my case is a bit diferent, and hopefully someone can advise me on that.  I have 2019 Ford EDGE ST and the problem is with drivers bottom part of the seat. The top part works well. It is hot and cold, no problem. The passanger top and bottom part work as well. The driver bottom part after youy disconnet the car battery is working fine, but after a while it starts and stops and starts again and stops again and the same till it stops working at all. It doesn't matter for herating or venting the seat it is the same. After you disconnect the car battery and reconnett it it si the same story. We changed the driver seat module as well and the heating element, also exchanged the heating element between driver and passanger seat and it is always the same.  What can be a cause for this, what should we look for. No seat specific problems are reported via OBD.  Please point me in some specific direction as we cannot figure this out and it is just heat (pain) in the butt  Thns for all tghe help. Possible Seat Control Module issue? I see you mentioned you switched the modules but I am not sure if you meant the cooling device (TED) or the Seat Control Module.  Quote Link to comment Share on other sites More sharing options...
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