What it means
The charge port door B open request switch reports a circuit condition. Operator request for charge port unlocking is unreliable.
At a glance
- Usually lights the check-engine light
How it works
The charge-port door B open-request switch sends the driver's unlock request through its switch circuit. The control module sets this code when that circuit does not report the request as expected, making the door B release unreliable.
Common causes
Most likely first.
- Switch failed
- Wiring fault
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
How to diagnose it
- Check stored codes and confirm whether pressing the door B request switch consistently fails to release the door.
- Inspect the switch and its connector for damage, contamination, corrosion, or loose terminals.
- Check the switch-circuit wiring for cuts, pinching, poor connections, or a short to ground or power.
- Use scan-tool data to see whether the control module recognizes the door B switch state as it is pressed and released.
- If the wiring is intact, test the switch circuit and switch operation against the manufacturer's specification.
Common fixes
- Clean and reseat the door B switch connector.
- Repair damaged or loose wiring in the switch circuit.
- Replace the door B open-request switch if it fails the circuit test.
Can I keep driving?
The door B release may work only intermittently or not at all, leaving you unable to access that charge port. Avoid forcing the door and make sure another reliable charging option is available if it will not release.
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.