What it means
The signal from the battery charger A input voltage sensor A is outside the expected range or performance criteria. The reading may be unreliable.
At a glance
- The engine or gearbox may go into limp mode
How it works
Battery Charger A's input-voltage sensor A measures voltage at the charger's input and reports it to the control module. P0D3E sets when the signal is present but its value or response falls outside the module's expected range or performance criteria.
Common causes
Most likely first.
- Sensor characteristic drifted
- Sensor mounting displaced
- Sensor element aged beyond calibration window
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
How to diagnose it
- Save freeze-frame data and compare live input-voltage sensor A readings with charging status to identify when the value becomes implausible.
- Inspect sensor A's mounting and position for displacement that could affect its voltage measurement.
- Check its connector and wiring for corrosion, damage, or poor contact that could distort the signal.
- Test the sensor A circuit and compare its output with other available input-voltage data using the wiring diagram and manufacturer's specification.
- If mounting and circuit checks are satisfactory, test sensor A for drift or degradation using the approved procedure.
Common fixes
- Secure input-voltage sensor A in its specified position.
- Repair a poor connection or damaged wiring in the sensor A circuit.
- Replace sensor A if testing confirms that its signal has drifted outside the manufacturer's specification.
- Verify that charging proceeds normally and the code does not return.
Can I keep driving?
The module may limit or interrupt charging because input-voltage sensor A is not reporting a value it can validate. Avoid relying on the vehicle reaching its intended charge level until the fault is resolved.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.