Honda Odyssey: Various "Check System" Messages Appearing after Replacing Battery

tooblue on 30/08/2022 - 11:52
Last edited 01/09/2022 - 11:09 by 1 other user

I removed the flat battery from 2016 Honda Odyssey and charged it at home. After reinstall it to the car, various "Check System" messages came up while doing Power On Self Testing, such as steering, stability control, tyre system, ABS, hill start, etc.

I didn't notice these when RACQ replaced the battery or how the technician did last time. I called Honda and they asked $167 for an inspection. Web search didn't find any useful information. Is it something I can reset myself or need to go to a garage or only Honda dealer?

Any suggestions?

Update:
Took it for a drive, a few kilometres late the lights were gone and all went back to normal.
What annoys me is this should be written in the instruction manual or at least the dealer can tell what happens through the phone. Instead they are hiding this information and require the customer to pay the inspection fee. Never saw such service with my other cars.

• 

  Sawtell on 30/08/2022 - 11:55

  +1

  If you have a obd2 tool you could scan for and reset any fault codes.

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  Muzeeb on 30/08/2022 - 12:16

  I'm going out on a limb here to say that the voltage regulator is stuffed.

  That's probably why your battery went flat in the first place.

  Failed voltage regulators can throw off all manner of warning lights and error codes.

  Typically an easy and cheap replacement but I don't know shit about Honda's.

  Do you have access to a multimeter?

  I might be wrong. My wife reckons I most likely am.

  • 

    tooblue on 30/08/2022 - 12:30

    Battery shows 12.8V after recharge.

    • 

      Muzeeb on 30/08/2022 - 12:30

      +1

      And the voltage while the engine is running?

      • 

        singlemalt72 on 31/08/2022 - 08:28

        THIS
        You should be getting high 13's to 14 v across the battery when it is running, if not, then the alternator is not charging the battery

  • 

    y33tcity on 30/08/2022 - 13:06

    Normally the voltage regulator is built into the alternator on hondas. But agreed, should see why the battery died to work out the problem.

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  mapax on 30/08/2022 - 12:19

  Web search didn't find any useful information

  So you have looked online how to clear a CEL and the procedure didn’t work?

  • 

    tooblue on 30/08/2022 - 12:29

    It is not "Check Engine Light" but "Check System". Read most of the the results on "check engine light" or "check charging system" and they are not relevant.

    • 

      mapax on 30/08/2022 - 17:10

      What I’m getting at is are you sure that attempting to clear a CEL doesn’t clear this issue?

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  SnoozeAndLose on 30/08/2022 - 13:15

  +1

  Just restart your car for a few time,let the system restart and the warning should be off.

  You can check if any function of the car isn't working.

  Report back when the warning is off

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  apsilon on 30/08/2022 - 14:38

  +1

  Modern cars often have systems that need to be recalibrated after disconnecting the battery. Dealer hooks it up and runs a few things etc. Some will self calibrate when you meet certain criteria (eg steering may be drive straight for X metres above Y km/h) but really depends on the car and I don't know Hondas well.

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  Cheekykent on 30/08/2022 - 15:43

  +2

  Have u driven it? My 2018 crv had my dash light up like a Christmas tree after a battery change but a short drive was all i needed to sort it out.

  • 

    tooblue on 01/09/2022 - 11:05

    Have driven it a few Ks and it all sorted out itself.

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  Euphemistic on 31/08/2022 - 08:58

  Ply some one for take it for a short drive and hope the lights sort themselves out.

  Search how to reset your ECU. It’s possible it needs to remap sensors etc and will need to reboot, go through the procedure and generally think about things for a while.

  I’ve been repairing a car lately. Part of that got a few sensors out of whack. Disconnecting the battery for 5-10min allowed the car to reset the ECU and he lights are gone.

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  DragoBoyz on 05/09/2022 - 21:30

  Lots of new cars need to recalibrate systems after a battery change. A very common one is the wheel position sensor. The car needs to be driven for a short while, with wheel going in different directions. Usually all goes away after a few roundabouts. Nothing to worry about.