Rear Cargo Door Lock Circuit Short to Ground
The rear cargo door lock's electrical circuit is shorted directly to ground, like a wire touching the metal frame and draining electricity. The vehicle's computer detects this short circuit and stores the fault code.
The ECU monitors the voltage and current draw on the rear cargo door lock circuit. It expects normal resistance when the lock solenoid operates, but detects abnormally low resistance indicating a direct path to ground. When measured voltage stays near 0V instead of the commanded level, the fault is triggered.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Circuit Voltage | 9-14V with normal solenoid resistance | Below 1V or continuous ground detection |
| Circuit Resistance | 50-200 ohms (solenoid coil) | Less than 10 ohms (short to ground) |
Code B2241 is a low-severity fault. Your vehicle is generally safe to drive to a workshop for diagnosis. However, do not ignore it indefinitely — low-severity codes often indicate developing problems that become expensive if neglected. Book a diagnostic appointment within 2–4 weeks. If you notice any additional symptoms (rough running, power loss, unusual smells), treat it as higher priority.
Once the fault is repaired, B2241 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.