Battery Charger 14 Volt Output Current Sensor Circuit Range/Performance
What it means
The battery charger 14-volt output sensor circuit is reading outside the range the module expects or not matching what it should. The charger uses this reading to control the 14-volt output that tops up the 12-volt battery.
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
This sensor measures how much current the on-board charger sends to the high-voltage battery. The charger control module uses it to regulate charging speed and to protect the battery from too much current. It is part of a high-voltage circuit, so work on it is for trained people. A fault may cause slower charging or stop charging altogether.
Common symptoms
What you'll notice
- Battery not charging properly
- Dash warning light for battery or charging system is illuminated
Common causes
Most likely first
- Faulty battery charger
- Loose or corroded battery charger connections
- Defective 14 volt output voltage sensor
- Malfunctioning circuitry in the battery charger
- Incorrect voltage output setting on the battery charger
How to diagnose & fix
Work through it in order
- Check the battery connections and clean any corrosion or loose connections
- Inspect and replace the voltage sensor if it is faulty or damaged
- Check and replace any damaged wiring or connectors related to the voltage sensor circuit
Related codes
Read & clear P0D48 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
Need a scanner that reads ABS, airbag and more? GaragePro OBD scan tools ship worldwide. See scanners →