P3421moderate severityPowertrain
Charge Port Locking Actuator Malfunction
on 2024 BMW 7 Series 3.0L I6 Turbo Hybrid · AWD
What this code means
The charge port locking mechanism that secures the charging connector during a charge session is not functioning properly.
Symptoms
- Unable to lock charging connector
- Charging connector falls out
- Unable to remove connector after charging
- Charge session will not start (safety interlock)
- Charge door warning light
Common causes
- Lock actuator motor failure
- Lock mechanism jammed
- Actuator wiring fault
- Charge port assembly damage
- Ice or debris in lock mechanism
Diagnostic steps
- Command lock/unlock via scan tool
- Inspect lock mechanism for obstruction
- Test actuator motor operation
- Check actuator wiring
- Try manual release mechanism
Repair notes
Replace charge port lock actuator or clean mechanism. Emergency manual release cable can be used as temporary measure.
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Other Powertrain codes on this vehicle
29CC
Misfire Cylinder 1
29CD
Misfire Cylinder 2
29CE
Misfire Cylinder 3
29CF
Misfire Cylinder 4
29D0
Misfire Cylinder 5
29D1
Misfire Cylinder 6
29D2
Misfire Cylinder 7
29E0
Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1