How to find and fix a parasitic drain on an EV's 12V battery?
A parasitic drain on an EV's 12V battery is usually caused by a module that stays awake, a faulty door latch sensor,…
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Vehicles & EVs
Practical, step-by-step fixes for vehicles & evs problems — 14 published so far.
why does my car battery drain overnight when everything is off
A parasitic draw — something staying powered after you lock the car — is slowly draining your 12V battery overnight. Common culprits…
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Why does my EV charger keep tripping the GFCI breaker
Your EV charger trips the GFCI breaker because of ground-fault leakage from the charger, cable, or vehicle — often caused by moisture,…
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Why does my EV charger keep tripping the GFCI breaker when I plug in
Your EV charger trips the GFCI breaker because of a ground fault in the charging cable, vehicle inlet, or the charger itself…
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Why does my EV charger keep tripping the GFCI breaker when I plug it in?
A GFCI breaker trips when your EV charger leaks small amounts of current to ground, often from moisture in the charge port,…
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Why does my EV charger keep tripping the GFCI outlet?
Your EV charger trips the GFCI because the charger or vehicle is leaking a small amount of current to ground, which the…
See the fixWhy does my EV say 'charging fault' and stop after 5 minutes
A 'charging fault' that stops charging within minutes usually means the car's onboard charger detected a ground-fault, over-temperature, or communication error with…
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Why does my EV show 'unable to charge' error when plugged into a public DC fast charger?
Your EV may show 'unable to charge' at a DC fast charger due to a communication handshake failure, an overheated battery pack,…
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Why does my EV show a charging fault error when plugged into my home charger
Your EV shows a charging fault at home because the car or charger detected a ground fault, communication error, or overheating —…
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Why does my EV stop charging after a few minutes on a public fast charger?
Your EV likely stops charging early because the charger's communication handshake fails, the battery hits a thermal limit, or the station's power…
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Why does my EV's 12V battery keep dying after sitting for a few days?
Your EV's 12V battery likely dies after sitting because the car's computers stay awake to monitor the high-voltage battery, check for updates,…
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Why does my EV's 12V battery keep dying even when the car is plugged in
Your EV's high-voltage battery should maintain the 12V system while plugged in, but a faulty DC-to-DC converter, blown fuse, or software glitch…
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