B1CA2F1 on Audi: Charging socket flap A Locking mechanism activation error (Unauthorized)
Diagnostic trouble code B1CA2F1 on Audi vehicles — what it means, the common
causes, and how to confirm the real fault before replacing parts.
What does B1CA2F1 mean?
B1CA2F1 indicates: Charging socket flap A Locking mechanism activation error (Unauthorized).
This relates to the Body system.
Common causes of B1CA2F1
Unauthorized activation of the charging socket flap locking mechanism
Fault in actuator for high-voltage charging flap lock 1 F496
Fault in actuator for high-voltage charging socket lock 1 F498
Communication error on LIN bus between charging flap module and High-Voltage Battery Charger Control Module J1050
Charging connector not properly locked in charging connection
What to check (live data)
LIN bus communication signal between charging flap module and J1050/J1245
Actuator for high-voltage charging flap lock 1 F496 activation status
Actuator for high-voltage charging socket lock 1 F498 activation status
CP (Control Pilot) interface signal
PP (Proximity Pilot) interface signal
Parts often involved in B1CA2F1
Control unit 1 for activation of charging flap and charging socket J1245
Actuator for high-voltage charging flap lock 1 F496
Actuator for high-voltage charging socket lock 1 F498
Drive unit for charging socket 1 cover VX86
LED module for charging socket 1 L263
High-Voltage Battery Charger Control Module J1050
Don't replace parts until the root cause is confirmed — many of these codes are caused by wiring, a connector or an upstream fault, not the part itself.
Get the confirmed root cause for B1CA2F1 — on YOUR vehicle
A code is a symptom, not a diagnosis. AutoDX Pro cross-checks several
independent assessments, pinpoints the actual root cause, gives you the
exact tests to confirm it, and shows the parts — only after the cause is
confirmed. Reads your scan-tool photo and decodes your VIN with open
recalls.
B1CA2F1 is a diagnostic trouble code: Charging socket flap A Locking mechanism activation error (Unauthorized).
What are the common causes of B1CA2F1 on an Audi?
Common causes include: Unauthorized activation of the charging socket flap locking mechanism, Fault in actuator for high-voltage charging flap lock 1 F496, Fault in actuator for high-voltage charging socket lock 1 F498, Communication error on LIN bus between charging flap module and High-Voltage Battery Charger Control Module J1050. The exact cause depends on the vehicle — confirm it before replacing parts.
Can I keep driving an Audi with B1CA2F1?
It depends on the fault and your symptoms. Some causes are minor, others can damage components or affect safety. Get the root cause confirmed before deciding.
How do I fix B1CA2F1 on an Audi?
Confirm the actual root cause with targeted tests first, then replace only the part that's at fault. AutoDX Pro gives you the root cause, the exact tests, and the parts for B1CA2F1 on your specific Audi.