P0D40
Battery Charger A Input Voltage Sensor A Circuit High
Generic OBD-II
Common symptoms
What you'll notice
- Check the battery charger's connections and ensure they are secure
- Verify that the battery charger is receiving power and functioning properly
- Inspect the input voltage sensor circuit for any loose wires or damaged components
- Test the input voltage sensor using a multimeter to ensure it is reading accurately
- If necessary, replace the input voltage sensor circuit with a new one
Common causes
Most likely first
- Malfunctioning battery charger or power supply
- Faulty input current sensor
- Loose or corroded electrical connections
- Short circuit in the input current sensor circuit
- Defective wiring in the battery charger A circuit
How to diagnose & fix
Work through it in order
- Battery not charging or charging slowly
- Illumination of the warning light
Read & clear P0D40 yourself
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