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Im ready or scrap this POS
500 Madness
   
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Thread: Im ready or scrap this POS

  1. #1
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    Angry Im ready to scrap this POS

    Very frustrated right now. Car has been parked in the garage for several months since weve been WFH since early last year and havent needed to use more than one car at most. Was fully charged after I last used it.

    Went to check on it today, and get warning lights and Service Electric Vehicle System error. Checked service battery, and it was a little low, so connected a fully-charged spare I have in the garage, and same result. Have disconnected and reconnected the battery, cycled the key multiple times, no change whatsoever. Plugging in the charge cable gets goalposts. Only thing I havent tried is disconnecting the HV battery.

    I *really* dont want to tow this thing to the dealer. If I have to do that its not coming back.

    Before I do that, any other suggestions?
    Last edited by CLH; 05-16-2021 at 01:49 PM.

  2. #2
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    Disconnected the service battery, disconnected the HV, waited a short bit, reconnected everything, no joy. Guess it’s getting towed.

  3. #3
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    Oh, and for further clarification, car won’t drive. Goes in Park or Neutral, nothing else.

  4. #4
    Senior Member ElectricTireShredder's Avatar
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    HV disconnect SEQUENCE seems to matter: Someone recently reported trying the official service sequence with no luck, but then tried the sequence which worked for another forum member & it worked. I'll dig it up & post a copy shortly.

    Also confirm no open recalls, & the useless but extremely problematic humidity sensor has been deactivated.
    2013 500e has been my only car since 2015.

  5. #5
    Senior Member ElectricTireShredder's Avatar
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    Here's the whole list, including the 12V you already replaced, but all 4 of the HV sequences, of which you only tried one....:

    The 500e sometimes shows a warning or error even when everything is working fine, & sometimes something won't work JUST due to an erroneous code.

    FIRST check for recalls
    that can be done by ANY FCA dealer (like Dodge, Jeep, Ram...) by entering the VIN here:

    Lookup FCA Vehicle Recalls by VIN | Official Mopar Site

    Check that the 12V battery is good. Even when it's technically "dead" the car will often start but cause errors. & it can fully die in only 23 months of normal use. Mine works fine even at only 11.6V after parking unplugged overnight, but ideally take it to a car parts store that does free load testing.

    Deactivate the humidity sensor just right of rearview. It's useless & can cause many false alarms, including ABS, RBS, ESC, HSA, PRND, SRS (airbag) etc. Mine's been unplugged 5 years. With middle fingers of each hand in the upper openings (1 hand shown below, so you can see the other opening), pull perpendicular from the glass. With a round toothpick parallel to the glass, press its point in at the red arrow, to flex the black socket away from the purple plug to unlock it & then pull out. The cover hooks back on the left & snaps on the right.


    Now try any of these, whichever is easiest for you first, since if one works, you're done!:

    A) Alfa OBD code clear. May require clearing 2 or more of the separate control units 2 or more times each.


    B) Key off 3 minutes. Repeat if needed, up to 10 times. (the most I've ever needed is 3 times off 1.5min, others say 3 min 5-10 times, nhtsa says 3-5min for "sleep" mode).

    C) Key off 5-min*, THEN disconnect 12V. 30 seconds worked for me, but when that failed for someone else, & so did 30 min, 30 hours worked.

    D) HV disconnect:

    1) With the car in "ready" mode if possible, open the hood & left door & don't open or close anything else** for the entire process, to avoid "wake up" signal.

    2) Remove the key, wait 3 minutes for "sleep" mode.

    3) Remove the orange HV plug under the rear seat bottom, disconnect the 12V, replace the HV plug, & reconnect the 12V*.




    IF that doesn't work, there are at least 3 other sequences to try, but for ANY of them make SURE to first do steps 1 & 2 above:

    3b) RatfinkHarley's successful sequence, confirmed by BoggleMe AFTER trying #3 above with no luck: Disconnect & reconnect HV (5 min?), disconnect 12V for 5 minutes.

    3c) Official "Emergency" sequence: Disconnect 12V, disconnect HV (assumption is reconnect in reverse).

    3d) Disconnect HV, disconnect/reconnect 12V (5 min), reconnect HV.


    * Officially recommended by nhtsa.gov Most likely 3 minutes off is also plenty for 12V disconnect, since it's sufficient for HV disconnect.

    ** I used to think only the left door woke it up, since it's the only one that awakens the HV systems (contactor clunk), HOWEVER the other door and even the hatch can awaken the 12V systems (instrument screen lights up).
    Last edited by ElectricTireShredder; 05-16-2021 at 04:36 PM.
    2013 500e has been my only car since 2015.

  6. The Following User Says Thank You to ElectricTireShredder For This Useful Post:

    CLH (05-16-2021)

  7. #6
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    Tried all of the HV disconnect sequences, no joy with any of them. I guess it’s well and truly ded. Guess I’ll need to sign up for AAA to get it towed for a reasonable amount. Closest dealer isn’t far, but AAA membership is probably still cost-neutral to a straight tow.

  8. #7
    Moderato map's Avatar
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    You can check your regular insurance to see if you have tow coverage. Too bad you are 230 miles away or I'd make an offer.

  9. #8
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    We were planning to get AAA anyway to cover the camper trailer too, so two birds, etc.

    I’ll update this thread whenever I have new info.

    @map if you know someone with a flatbed heading south, make me an offer I can’t refuse

  10. #9
    Senior Member ElectricTireShredder's Avatar
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    Quote Originally Posted by CLH View Post
    Tried all of the HV disconnect sequences, no joy with any of them. I guess it’s well and truly ded. Guess I’ll need to sign up for AAA to get it towed for a reasonable amount. Closest dealer isn’t far, but AAA membership is probably still cost-neutral to a straight tow.
    - I know it seems unbelievable, but at least one user has reported a major issue like this being corrected by just disabling the humidity sensor. Others have had less critical errors corrected. It takes 30 seconds & certainly can't hurt to try. It sometimes requires another 12V disconnect afterwards.

    - I can only assume there are no outstanding recalls.

    - Key cycles do nothing unless it's shut off for at least long enough for the instrument screen to go fully black, not just dark, dark grey. I think that's about 2.25 minutes on mine. Other users have reported that 9 such cycles didn't work, but 10 did.

    - One thing that I know there hasn't been time to try is the 30-hour 12V disconnect, which has worked for at least 2 users when 3 hours failed.

    - While awaiting that, a $17 eBay ELM327 KONNWEI KW902 bluetooth OBD reader only takes a couple days to arrive.

    - I wonder what the charge level shows, & if the contactors are clunking shut when the left door is opened, or when the key is turned on, or when the charger is plugged in.

    - Mine was once "infected" by a public charger, showing something like the same warning in post #1, & was suddenly fine after plugging into a freshly-rebooted OEM cord.
    Last edited by ElectricTireShredder; 05-16-2021 at 09:44 PM.
    2013 500e has been my only car since 2015.

  11. The Following User Says Thank You to ElectricTireShredder For This Useful Post:

    CLH (05-16-2021)

  12. #10
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    I did try the sensor. No change.

    I have an OBD reader but Torque doesn’t get anything from it. Connects to the reader, but the reader doesn’t connect to the ECU.

    I guess I could try the 30-hour disconnect, but honestly I’m very frustrated about this whole situation and don’t really want to mess with it any longer. I just don’t understand how this thing could break while sitting in the garage. If it weren’t for the fact that my wife loves the car to bits it would already be on a one-way flatbed to get donated or sold. It’s absurd to me that I’ve had to do *any* of this bullsh*t battery disconnect dance, let alone try half a dozen different permutations of it.

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