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Warning lights on dash

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289 views 5 replies 5 participants last post by  Roger  
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#1 ·
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Hi everyone.. last weekend 2 yellow lights appeared on my dash. yellow square with squiggle and flat tire sign. Flat tire flashes sometimes.. and is permanently on sometimes.
Picture attached..

I had a mechanic run diagnostics on it and the error 038096 came up.. from reading online it indicates a dodgy temp sensor. Blue cover located under battery towards radiator.. and I had planned to clean the connections this weekend and investigate..

I went to start my car this morning and the engine management light is yellow.. and the battery sign is red.
I tested the battery with car tuned off and it's reading 12.07 volts

With the jeep running its reading 11.54 volts.
My battery seems old so maybe this is the issue.
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#2 ·
Around 12.8v minimum should be about right with the engine off and around 13-14v when it's running. I think your battery is a bit suspect and approaching 3 years old (according to the date stamp on the photo) it may be time to replace it. I have the original 2019 battery on mine from when the car was new so maybe I've been lucky.
 
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#5 ·
A car battery is only 80% charged at 12.4 V. At 11.8 V it is badly discharged. Unless there is a good reason e.g. you left the headlights on you either have a faulty battery, charging circuit or a fault causing a parasitic heavy drain.
 
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