What is the 12V DC-DC Converter & PDM Faults problem on a 2014 Nissan Leaf (ZE0)?

Common Problems with the
2014–2017 Nissan Leaf (ZE0)

We've identified 1 known issue that can affect the 2014–2017 Nissan Leaf (ZE0). 1 of these are serious faults that could be expensive to repair.

Known Issues

Serious

Moderate

Minor

The 2014–2017 period has an average number of reported issues compared to other Nissan Leaf (ZE0) year periods.

All Known Issues

12V DC-DC Converter & PDM Faults

SeriousElectrics & Electronics

The Power Delivery Module (PDM) houses the DC-DC converter. If it fails, the 12V battery won't charge from the traction battery, leading to random CAN-bus errors or the car refusing to move.

Estimated cost: £800–£2,000Affects: 2010–2017Often appears around: Any

Typical symptoms

•Random "Ghost" errors on dash
•Car won't shift out of Park
•12V battery dies even after replacement

What to inspect before you buy

✓Check 12V charging voltage while car is in "Ready" mode (should be 13V+)
✓Check if AC charging works (PDM failure often kills AC but not DC charging)

Buying Tips for the 2014 Nissan Leaf (ZE0)

✓Check battery health bars; pre-2013 cars have more vulnerable chemistry than later "Lizard" or 30kWh packs.
✓Verify if the car has a Heat Pump (2014+ Acenta/Tekna); this is vital for UK winter range compared to the older resistive heater.
✓A healthy 12V battery matters more than many buyers realise because low voltage creates bizarre "Service EV System" faults.
✓Listen for front driveshaft clicking and confirm the charging flap opens and latches cleanly.

2013 Nissan Leaf (ZE0)