Page 3 of 3 FirstFirst 123
Results 31 to 36 of 36

Thread: How to reset the i-stop system (eg after battery replacement)

  1. #31
    Registered Member


    Join Date
    Jun 2019
    Posts
    1
    Quote Originally Posted by Moonlighter View Post
    On CX5s and other Mazda's with the i-stop system, i-stop may not activate after the battery has been replaced or was disconnected during some servicing.

    In this case you will either need to ask your dealer to reset it, which they can by connecting up to the diagnostic system, or you can do it yourself.

    I found some instructions for a MZR 2.0, but it worked very similarly, as below, on my CX5 2.2 diesel.

    1. Warm up the engine. Turn everything electrical off that you can - radio, A/C etc so there is no/minimal electrical load.
    2. Switch the ignition off.
    3. Switch ignition to on but dont start engine. Long-press the i-stop OFF switch for 3 s within 5 s after switching the ignition ON.
    4. Start the engine.
    5. Press the i-stop OFF switch. Verify that the i-stop indicator light (green) flashes and stays flashing. If it does not flash, go back to Step 3.
    6. Allow the engine to idle for 10 minutes, or until the i-stop indicator light (green) turns off. Mine didnt stop flashing so after 10 minutes or so i just went to step 7.
    7. Switch the engine off. Wait a minute or two.
    8. Start the engine. Go for a drive, and check that the i-stop system operates normally. Those with i-stop will know that you may need to drive a mile or two until it activates. Remember that i-stop will not operate when (a) diesel engines are in regen mode, and (b) in some other conditions - see your manual for details. Also, if a new battery was fitted, it may take some time for the new battery to fully charge up before i-stop will start working. Go for a decent drive so it gets fully charged.
    9. If i-stop operates as normal, you have successfully reset it.

    Cheers!

  2. #32
    Registered Member


    Join Date
    Jul 2019
    Posts
    1
    Quote Originally Posted by Moonlighter View Post
    On CX5s and other Mazda's with the i-stop system, i-stop may not activate after the battery has been replaced or was disconnected during some servicing.

    In this case you will either need to ask your dealer to reset it, which they can by connecting up to the diagnostic system, or you can do it yourself.

    I found some instructions for a MZR 2.0, but it worked very similarly, as below, on my CX5 2.2 diesel.

    1. Warm up the engine. Turn everything electrical off that you can - radio, A/C etc so there is no/minimal electrical load.
    2. Switch the ignition off.
    3. Switch ignition to on but dont start engine. Long-press the i-stop OFF switch for 3 s within 5 s after switching the ignition ON.
    4. Start the engine.
    5. Press the i-stop OFF switch. Verify that the i-stop indicator light (green) flashes and stays flashing. If it does not flash, go back to Step 3.
    6. Allow the engine to idle for 10 minutes, or until the i-stop indicator light (green) turns off. Mine didnt stop flashing so after 10 minutes or so i just went to step 7.
    7. Switch the engine off. Wait a minute or two.
    8. Start the engine. Go for a drive, and check that the i-stop system operates normally. Those with i-stop will know that you may need to drive a mile or two until it activates. Remember that i-stop will not operate when (a) diesel engines are in regen mode, and (b) in some other conditions - see your manual for details. Also, if a new battery was fitted, it may take some time for the new battery to fully charge up before i-stop will start working. Go for a decent drive so it gets fully charged.
    9. If i-stop operates as normal, you have successfully reset it.

    Cheers!
    This is an absolute gem. I used this on my Aus Mazda3 after replacing the battery and it worked a treat.

    Thank you!!

  3. #33
    Registered Member


    Join Date
    Jul 2019
    Posts
    4
    Hello guys... posting form panama here.

    I have a small issue with this istop / battery charge management system. My original battery died, so i placed an optima yellow top D35 on my car. (2016 CX5 2.0 front wheel drive)... the istop and battery warning came up, so i didi the proper thing having a deep cycle bat install... got a charger. The charger is an automatic charger 6 amps max, which might be a problem as i read these optima require 10 amps..

    anyways
    issue got solved using this procedure after charging the battery, but now (a month later) light came again and i can't reset the fault warning. Battery moves from 12.7 to 13 volts; Depending on the charge state ofcourse. When the battery by itself is 13V, i get only the istop malfunction issue (battery management system problem allert goes away)... but yes, its annoying.

    by the way, car does start up fine but that amber alarm light is driving me crazy.

    I also did the 5 mins negative battery terminal unplugged thing before trying this procedure and nothing...

    Please advice.

  4. #34
    Registered Member


    Join Date
    Jul 2019
    Posts
    4
    nobody replies...

  5. #35
    Registered Member


    Join Date
    Jul 2019
    Posts
    4
    FYI (assuming you care)

    DTC code P0A8D00...

  6. #36
    Registered Member
    Donated: $25


    Join Date
    Apr 2019
    Posts
    56
    Hello, can anyone confirm that the US models of the CX-5 still do not use I-stop?

Page 3 of 3 FirstFirst 123

Similar Threads

  1. I-stop battery replacement - need some feedback
    By road_runner in forum CX-5 Engine & Transmission
    Replies: 4
    Last Post: 11-14-2012, 11:45 AM
  2. Replies: 7
    Last Post: 07-13-2011, 10:31 PM
  3. How to reset everything after new battery install?
    By Gray Ghost in forum Mazda CX-7
    Replies: 2
    Last Post: 11-17-2009, 03:53 PM
  4. Reset OBDII w/o pulling battery?
    By RatLabGuy in forum Protege5
    Replies: 2
    Last Post: 10-11-2008, 08:58 PM
  5. Replies: 6
    Last Post: 04-21-2004, 03:50 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •