P2E9E: Charge Port Door B Unlock Control Circuit Performance

What it means

The charge port door B unlock control reports a circuit performance condition. Door cannot be commanded to unlock reliably.

At a glance

• Usually lights the check-engine light

How it works

The charge port door B unlock actuator releases the door so the connector can be accessed. The control module monitors the unlock circuit’s response when it commands the actuator. It sets this performance code when that response does not behave as expected, even if the circuit is not consistently registering low or high.

Common causes

Most likely first.

1. Unlock actuator failed
2. Wiring fault

Symptoms

• Charge-port door B may not unlock reliably

How to diagnose it

1. Use a scan tool to record freeze-frame data and check whether door B unlock commands or related faults coincide with the code.
2. Command charge port door B to unlock and note whether it releases consistently, sticks, or does not respond.
3. Inspect the door B actuator connector and nearby wiring for looseness, corrosion, damage, or signs of water entry.
4. Check that the door mechanism moves freely and is not binding or obstructed.
5. Test the unlock actuator and its circuit during a commanded unlock, comparing circuit response with the manufacturer's specification.

Common fixes

• Remove debris or correct binding at the charge port door B mechanism.
• Clean and secure the door B actuator connector.
• Repair damaged or loose wiring in the door B unlock circuit.
• Replace the charge port door B unlock actuator if it fails testing.

Can I keep driving?

The fault is usually limited to accessing charge port door B, but you may be unable to connect or disconnect the charging cable as intended. Avoid forcing the door; arrange another way to charge if needed.