Just wanted to pass this info along as some may be experiencing perceived weak batteries or just want to do the occasional checkup before a long road trip and bam you find the alternator is not charging, don't worry just yet here is why....
makuloco2000
This applies to Fords 2011 on but as with any new system they roll it out over the years as the vehicles get redesigned. For example the 2011 edge and 2011 Explorer were big redesigns so they got it first where as the Escape didn't see a big redesign till 2013 so that is when they got it that is why I made sure to title this post correctly for 2013 on. Oh an owner can still change their own battery but the system will not recognize it properly. Here is more info on that situation from the workshop manual.wptski said:
If the vehicle battery is replaced, carry out the Battery Monitoring System Reset using the scan tool. If the Battery Monitoring System Reset is not carried out, measurement data collected for the old battery is not deleted and future state of charge measurements will be inaccurate. For example, if an old battery has a state of charge of 60% and the new battery has a state of charge of 90%, the BCM will recognize battery state of charge being 30% lower than it actually is. With the battery state of charge being perceived lower than it actually is causes shedding of loads earlier than is necessary. This also impacts the smart regenerative charge system by causing the battery to be maintained at a higher state of charge than perceived by the BCM, reducing fuel economy benefits.
Thank you posting this, makuloco2000. Very interesting. Seems like Ford could add the option in the set-up menu in the dash to tell the PCM that a new battery was installed, instead of having to use the scan tool. Since you are in the loop, do you foresee this option coming, or will a trip to a Dealer or repair shop be needed? I'm still recovering from the TPS tool requirement. Thanks.
Not likely since they want you to go to the dealer and generate some profit for them... Heck, have you looked at the machinations necessary in the 2013+ just to physically change The battery???
2010Tan4Door said:
No I definitely don't see this happening in the future.2010Tan4Door said:
The front door of the battery tray is a bit complex but they shove the batter back in there so you cannot hook up a charger etc to the batter negative post as that would negatively affect the battery load shed strategy.Tomt said:
I learn new stuff everyday it seems. I do not like this new battery configuration and new technology so............. After getting the throttle body replaced on my 2010, I suppose I will keep it and not upgrade to a newer model Escape. I really like the 2010 anyway. Thanks all for sharing this info.
Oh you don't want the new ones anyway until they work the bugs out like 2015 models. The fixes we are going through right now I think the 2013 escape will be the most recalled car ever. Now there is a new recal about the seat frames busting in accidents just wait it is coming! If I did a video on the current recall for the engine overheats it would blow your mind!!2010Tan4Door said:
Electrically there's no difference between the negative post on the battery or the body ground. That's just to keep any sparks that may happen away from battery fumes that may explode. That's part of safe charging and jumping sequence.makuloco2000 said:
How would have that affect the battery load shed strategy that you mentioned?
There is a difference between connecting to the negative battery terminal vs the body of the car. There is a Hall Effect (current) sensor in the negative battery cable. This sensor is used by the computer to monitor current going into and out of the battery to maintain a battery charge state.
If you connect a battery charger to a dead battery and connect directly to the terminals the computer will not see the charge going into the battery. It will then still think the battery is dead (or low) and will prevent the car from turning on some accessories. If you instead charge at the positive terminal and the body of the car the sensor in the negative battery cable will carry the charge current. The computer will see the battery being charged.
If you connect a battery charger to a dead battery and connect directly to the terminals the computer will not see the charge going into the battery. It will then still think the battery is dead (or low) and will prevent the car from turning on some accessories. If you instead charge at the positive terminal and the body of the car the sensor in the negative battery cable will carry the charge current. The computer will see the battery being charged.
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