P0D3F

What it means

P0D3F is the generic code for a low signal from the input voltage sensor (sensor A) of battery charger A, the on-board charger in a plug-in hybrid or electric vehicle. The charger control unit saw a voltage from the sensor circuit that was below the expected range, or one that did not match the supply it should be seeing. Exactly where the sensor sits and how it is monitored depends on the model and the charger design.

Symptoms

• Warning light on, or a charging system or hybrid system message on the dash
• Vehicle will not charge from a mains or charge point supply
• Charging starts then stops, or is interrupted part-way
• Reduced or no plug-in electric range because the battery is not being topped up
• Charge status indicator at the inlet shows a fault or does not light normally

Possible causes

• Poor or intermittent charging supply, for example a faulty charge cable, home unit or public charge point giving low or unstable input voltagelikely
• Damaged, corroded or loose wiring or connectors between the charge inlet and the on-board chargerlikely
• Damaged or contaminated charge inlet socket or pinspossible
• Low 12 V auxiliary battery voltage upsetting the charger control electronicspossible
• Faulty input voltage sensing circuit inside the on-board chargerpossible
• Outdated charger control software where the manufacturer has identified it as a known causerare

How to diagnose

1. Read all stored and pending codes and the freeze frame data, noting whether other charger, high-voltage battery or communication codes are present.
2. Check the 12 V auxiliary battery condition and charge it or test it if it is weak, as low voltage can cause false charger faults.
3. Try a different known-good charge cable and a different supply or charge point to see if the fault follows the supply.
4. Visually inspect the charge inlet for water, debris, burnt or bent pins, and corrosion, with the vehicle disconnected from any supply.
5. Inspect the visible wiring and connectors to the on-board charger for chafing, water ingress, corrosion and loose pins, without touching any orange high-voltage cabling.
6. Using the manufacturer's procedure, check live data for charger input voltage while connected to a supply and compare it with the actual supply voltage.
7. Have a suitably trained high-voltage technician isolate the system and test the sensor circuit wiring and charger connections per the manufacturer's procedure.
8. Check for manufacturer service bulletins or software updates relating to this code for the specific model.

How to fix

• Replace or repair the faulty charge cable or correct the supply fault at the home unit or charge point.
• Repair or replace damaged wiring, terminals or connectors in the charger input circuit.
• Clean or replace the charge inlet socket if it is damaged or contaminated.
• Recharge or replace the 12 V auxiliary battery if it is found to be weak.
• Replace the on-board charger, or the sensor if it is serviceable separately, if the internal fault is confirmed, following manufacturer procedures.
• Apply a manufacturer software update only where a bulletin identifies it as a known cause for this code.

Can I keep driving?

Nearby codes

• P0D3EGenericBattery Charger A Input Voltage Sensor A Circuit Range/Performance
• P0D40GenericBattery Charger A Input Voltage Sensor A Circuit High