DRogall Posted August 24, 2020 Share Posted August 24, 2020 Hi all! I'm a newbie here. I've got a 2010 hybrid with only about 50,000 miles that I inherited and have been using as a second car sporadically and even less so now that there's not much reason to drive. It sat too long...maybe a month and a half. (I didn't realize I was supposed to disconnect the negative cable from the 12 volt.) Some of the lights were still working, and it initially gave me some warnings: oil pressure low, gas, engine is hot. After re-charging the 12 volt, (on 10 Amps with a portable charger for 4 hours ... started on 25%, ended on 100%), more lights work, but it still won't start and is showing even more warning lights and the high voltage battery gauge shows it on Low: Fuel level low (though the gauge shows about half full). High motor temp (though it's been off for 2 days now). Cross traffic system fault. Stop safely now. Oil pressure low. Throttle control/powertrain malfunction. Service engine soon. --I've got a generic OBD reader that I use on my old Toyota Prius. Can I use it on this car? If so, how? --After reading some related posts, should I try removing the negative cable now? If so, how do I do that? Anything I need to be careful about? From hybrid wont start By gogators, April 27, 2012 in Ford Fusion Hybrid "ok everyone here is what they said.... it went in to a sleep mode..technical term was ... key off time limit exceeded... they told me all they had to do was disconnect and reconnect the post on battery and it started right up...i asked why this was not in the owner manual...." "There is a pretty well known 50 day key off time limit in the security systems of most 2010 and newer Fords. That's one of the reasons they recommend starting it every 30 days. It's not just the FFH that has this. I can't believe the dealer did not have you disconnect the battery first. I'm not sure why they implemented this "feature" since disconnecting the battery for a few minutes and reconnecting it bypasses the lockout." 0 Quote Link to comment Share on other sites More sharing options...
bbf2530 Posted August 24, 2020 Share Posted August 24, 2020 (edited) 41 minutes ago, DRogall said: Hi all! I'm a newbie here. I've got a 2010 hybrid with only about 50,000 miles that I inherited and have been using as a second car sporadically and even less so now that there's not much reason to drive. It sat too long...maybe a month and a half. (I didn't realize I was supposed to disconnect the negative cable from the 12 volt.) Some of the lights were still working, and it initially gave me some warnings: oil pressure low, gas, engine is hot. After re-charging the 12 volt, (on 10 Amps with a portable charger for 4 hours ... started on 25%, ended on 100%), more lights work, but it still won't start and is showing even more warning lights and the high voltage battery gauge shows it on Low: Fuel level low (though the gauge shows about half full). High motor temp (though it's been off for 2 days now). Cross traffic system fault. Stop safely now. Oil pressure low. Throttle control/powertrain malfunction. Service engine soon. --I've got a generic OBD reader that I use on my old Toyota Prius. Can I use it on this car? If so, how? --After reading some related posts, should I try removing the negative cable now? If so, how do I do that? Anything I need to be careful about? From hybrid wont start By gogators, April 27, 2012 in Ford Fusion Hybrid "ok everyone here is what they said.... it went in to a sleep mode..technical term was ... key off time limit exceeded... they told me all they had to do was disconnect and reconnect the post on battery and it started right up...i asked why this was not in the owner manual...." "There is a pretty well known 50 day key off time limit in the security systems of most 2010 and newer Fords. That's one of the reasons they recommend starting it every 30 days. It's not just the FFH that has this. I can't believe the dealer did not have you disconnect the battery first. I'm not sure why they implemented this "feature" since disconnecting the battery for a few minutes and reconnecting it bypasses the lockout." Hi DRogall. Welcome to the Ford Fusion Forums, and sorry to hear you are having issues. While Internet diagnosis is very imprecise, this may very likely a dead 12V battery situation. So the battery is holding enough charge to light everything up, but not enough to start the car. If that is the case, charging it will not help. In addition, how old is the 12V battery? if more than 3-4 years old, it is past due for replacement. Are you asking how to remove the negative terminal on the 12V battery? You loosen the nut/bolt on the terminal and left the terminal off the post. If it will not come off easily, use a terminal puller to lift the cable end/terminal off the post. If you re not sure how to do this, it may be best to enlist the help of a car-knowledgeable friend or family member to help you this first time. Then next time you will know how. Let us know how you make out and good luck. EDIT - Also, if you do not have the hard copy of your Owners Manual, you can download th PDF version here: https://www.fleet.ford.com/parts-service/resources/owner-manuals/ It comes in handy. Edited August 24, 2020 by bbf2530 0 Quote Link to comment Share on other sites More sharing options...
Milan_OH Posted August 24, 2020 Share Posted August 24, 2020 There's a 10mm (I think) nut on the battery terminal connector, just loosen the nut and wiggle the connector back and forth to remove, leave off for ~1 minute, then reconnect. You'll get a small spark when reconnecting, so don't be alarmed. If this doesn't work, then I'm not sure, but it's worked for me on several occasions. When I store my mine, I've successfully used a trickle maintenance charger w/o disconnecting the battery. 0 Quote Link to comment Share on other sites More sharing options...
DRogall Posted August 24, 2020 Author Share Posted August 24, 2020 Thanks for the responses! One update: I found the OBD port and used my Actron CP9125 C OBD 2 PocketScan reader on it. It said there were Zero codes, so nothing to erase. One note: The 12 volt seemed to have charged completely. Will work on seeing if I can disconnect the negative terminal. 0 Quote Link to comment Share on other sites More sharing options...
lolder Posted August 24, 2020 Share Posted August 24, 2020 You should replace the 12 vdc battery anyway. The car must be run 30 minutes every 30 days. Do you have the Owners Guide and Quick Reference Guide? If not, get them and read them. There is also a software update described in the first thread and Ford can do it at a price. If you give this car a little care it will be very reliable. 0 Quote Link to comment Share on other sites More sharing options...
DRogall Posted August 27, 2020 Author Share Posted August 27, 2020 Problem seems solved! I was able to disconnect the negative terminal and then after I reattached it, it started right up with no warning lights. Thanks, bbf2530 for the link to the manuals! p. 281 of the 3rd version had instructions on what to do after reattaching the terminal which my 1st version hard copy did not have. And, thanks Milan_OH. It was also very useful to know there might be a spark, which there was, so I didn't get terrified! The only differences I noticed in driving it now -- Sluggish to accelerate Lower gas mileage (very low at first, then improving but still slightly lower than before) 0 Quote Link to comment Share on other sites More sharing options...
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