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Re:How do I reset the yellow engine light?

  • Pony
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10 Apr 2019 16:46 #205821 by Pony
Engine light started showing after the battery was emptied this winter. Bought a new battery since the old was...old.
Is there an easy way of resetting the engine light?

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  • Riccy
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10 Apr 2019 17:01 #205824 by Riccy
usually taking the battery + connection off and leave it for about 30 mins to totally discharge, refit and off you go.

If the light is still on then you need to get a code reader to find out why ;-)

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  • mickt
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12 Apr 2019 19:12 #205976 by mickt
Replied by mickt on topic How do I reset the yellow engine light?
With the engine running use a voltmeter to check the battery voltage. You are looking for 14.5V

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12 Apr 2019 20:33 #205980 by mlines
If you are talking about the fault light ("check engine") then this should automatically clear on the second start after the detected fault has been rectified

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14 Apr 2019 10:58 #206049 by Delux
Dont you want to know why the light is on?

It is a warning light, meaning the engine ECU is trying to tell you something. If the light has not gone off by now, something is happening that the ECU isnt happy with.

Why did you change the battery? Did you have the charging system checked 1st?

If you changed the battery because it looked old can we assume you now own a new Jimny because there are loads on here that will make your '04 plate Jimny look old too. LOL!

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14 Apr 2019 18:09 #206094 by Max Headroom
I changed the lambda sensor in the mainifold (£65 from SparkPlugs UK) as I was getting increasingly fed up with dico'ing the battery.

That fixed it for me :)


IF IT AINT BROKE, KEEP FIXING IT UNTIL IT IS

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  • Pony
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23 May 2019 07:47 #208777 by Pony
thanks for the reply. the charging seems fine, and i changed the battery since i forget the lights couple of times, cold winters etc. i learned that one should replace after some years anyway.
best find a code reader?

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23 May 2019 07:48 #208778 by Pony
thanks for the reply. couldn’t figure out - “dico’ing”??

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  • Lambert
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23 May 2019 08:37 #208783 by Lambert
Disconnecting.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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  • mickt
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23 May 2019 10:34 #208789 by mickt
Replied by mickt on topic Re:How do I reset the yellow engine light?
Max Headroom What made you decide it was a particular sensor that was causing the battery to go flat as I would have thought that once the ignition was off the sensors are OFF?. Or did you get the car ECU read and it gave it the thumbs down or did you just picked that sensor. Even then I doubt that it would cause a battery problem.
Pony your best bet is to get the charging system checked properly and as mentioned get the codes read. Any decent garage will normally read the codes for you as long as it is not a Dealers!

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  • Pony
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23 May 2019 18:30 #208830 by Pony
thanks, mickt.
i’ll go for the garage.
pony

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  • Pony
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24 May 2019 12:33 #208870 by Pony
local garage read out the code for free!
sats something like «lambda sensor for preheating in front of catalysator”.
would this be the same that max headroom changed in the manifold?

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