What it means
The battery charger control module A reports a performance fault. Internal self-tests fail or response time outside calibration.
At a glance
- Usually lights the check-engine light
- The engine or gearbox may go into limp mode
How it works
Battery charger control module A manages or supervises charger operation, including communication with related charging components. P0D67 sets when module A's self-checks or responses do not meet expected performance, but the code alone does not prove the module itself has failed.
Common causes
Most likely first.
- Internal module fault
- Communication degraded
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 all charger or communication codes before clearing anything, to establish the conditions and identify related faults.
- Check live charger data and module A status for unavailable values, delayed responses, or charging interruptions.
- Inspect accessible module A connectors, grounds, and communication wiring for loose connections, corrosion, or damage, following the manufacturer's high-voltage safety procedure.
- Check the vehicle's low-voltage supply and communication circuit integrity against the manufacturer's specifications.
- If supply, wiring, and other communication faults are ruled out, run the vehicle-specific module A self-test and performance checks.
Common fixes
- Reseat loose module A connectors and clean corroded terminals.
- Repair damaged communication wiring or poor module grounds.
- Correct a low-voltage supply problem affecting module operation.
- Replace or reprogram charger control module A only if the manufacturer’s diagnostic procedure confirms it is faulty.
Can I keep driving?
Do not rely on the vehicle for a trip that requires dependable charging if charging is slow, interrupted, or unavailable. Stop charging and follow the vehicle's instructions if it reports a fault; avoid handling high-voltage charger components.
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.