Battery Charger Input Circuit High
What it means
The battery charger input circuit is reading higher than the module expects. This input lets the charger monitor the power coming in from the charging source, which it uses to control charging.
Can I keep driving? Usually yes, as this mostly affects charging; get it read if charging fails. Do not open high-voltage (orange) cables or covers yourself; leave that to a trained technician.
What this part does
The battery charger is the unit on a plug-in hybrid or electric vehicle that converts power from a charging cable into the form needed to charge the high-voltage battery. It controls how fast charging happens and reports status to other modules. Because it handles high voltage, work on it is for trained people. A fault can mean slow charging or no charging at all.
Common symptoms
What you'll notice
- Battery may not charge properly
- Vehicle may experience electrical issues or malfunctions
- Battery warning light may be illuminated on the dashboard
Common causes
Most likely first
- Faulty battery charger
- Faulty charging cable or connectors
- Overcharging of the battery
- Faulty battery charging control module/relay
- Faulty battery management system
How to diagnose & fix
Work through it in order
- Check and replace any damaged or corroded wires or connections in the battery charger input circuit.
- Inspect and replace the battery charger input fuse if it is blown or faulty.
- Check and replace the battery charger input relay if it is malfunctioning.
- Inspect and replace the battery charger input circuit control module if necessary.
Related codes
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