Battery Charger A Output Voltage Performance
What it means
The output voltage of battery charger A is not performing as expected. The charger converts outside power into the correct voltage and current for the pack, so charging may slow, stop, or be refused.
Can I keep driving? Usually yes, since this affects charging rather than driving, but stop charging if you notice heat, smell or smoke. 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
- Diminished power or sluggish acceleration
- Warning light illuminated on the dashboard
Common causes
Most likely first
- Faulty battery charger or charging system
- Insufficient voltage supply from the battery charger
- Overcharging of the battery
- Poor connection or faulty wiring in the charger or charging system
- Defective voltage regulator in the battery charger
How to diagnose & fix
Work through it in order
- Check and clean battery terminals
- Check and replace faulty battery charger
- Inspect and repair wiring connections
- Replace battery
Related codes
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