P0D67
Battery Charger Control Module A Performance.
- Generic
- Powertrain
- Generic code
- Medium severity
How this code is built
- P
- SystemPowertrain
- 0
- Defined bySAE, the same on every car
- D
- AreaReserved
- 67
- FaultThe specific fault in that area
What it means
P0D67 is a generic powertrain code meaning the control unit for battery charger module A has judged its performance to be outside the expected range. It is used on hybrid and electric vehicles with an on-board charger or similar charging control module. The monitoring logic saw the charger module's output, response or internal checks disagree with what was commanded, so it set the fault. The exact test and the module's location vary by model and system design.
Symptoms
- Hybrid or EV system warning light on the dashboard
- Vehicle will not charge, or charges slowly or intermittently
- Charging stops part way through a session
- High-voltage battery charge level drops faster than normal or fails to recover
- Reduced power or limited performance mode
- Charge port light or charging indicator showing a fault
Possible causes
- Faulty or degraded on-board charger module A (internal fault or overheating)likely
- Wiring or connector problems between the charger module and the control unit, such as corrosion, loose pins or damaged wireslikely
- Low or unstable 12 V supply or poor earth to the charger modulepossible
- Problem with the charging inlet, charge port, or external supply (unstable mains or faulty charging cable)possible
- Cooling system fault for the charger (low coolant, poor flow, blocked airflow) causing thermal limitingpossible
- Communication fault on the vehicle network affecting the charger modulepossible
- Outdated or faulty control unit software, where the manufacturer has identified it as a known causerare
How to diagnose
- Read all stored and pending codes and the freeze frame data, noting any related charging, communication or voltage codes
- Ask when the fault appears: during home charging, public charging, or while driving, and whether a different charging cable or supply changes it
- Check the 12 V battery condition and charging voltage, as low voltage can upset module performance
- Inspect the charge port, charging cable and inlet pins for damage, moisture, heat marks or debris
- Visually inspect the charger module wiring, connectors and earths for corrosion, looseness or damage
- Check the charger cooling circuit, coolant level and any cooling fan or pump operation, following the model's procedure
- Use live data to compare commanded and actual charger output and check module temperature, following manufacturer specifications
- Check for applicable software updates or technical bulletins for the specific model, and confirm the module is communicating properly
How to fix
- Repair or replace damaged wiring, connectors or earth points found during inspection
- Replace or repair the charger module if testing shows an internal fault, then carry out any required setup or adaptation
- Replace or recharge the 12 V battery if it is weak or failing
- Repair the charge port or replace a damaged charging cable
- Restore the charger cooling system to correct operation, such as topping up coolant or fixing flow problems
- Update the control unit software if a manufacturer update addresses a known cause
Can I keep driving?
The car may still be driveable, but charging reliability and available power may be reduced, so have it checked soon. If there are warning messages about the high-voltage system, power loss or unusual smells or heat from the charging area, stop driving and seek professional help.
Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.