Mirror Passenger Drive Circuit Failure
The passenger side mirror's electric drive motor circuit isn't working properly, like a broken wire in a remote control that won't let you adjust the mirror. The vehicle's computer detected a voltage or continuity problem in the circuit that powers the mirror adjustment motor.
The ECU monitors the voltage and current draw of the passenger mirror motor circuit when the control switch is activated. It checks for proper voltage supply (typically 12V) and detects shorts, opens, or excessive resistance in the wiring harness or motor windings. If voltage fails to reach expected levels or current draw is absent, the fault is logged.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Mirror Motor Supply Voltage | 11.5V to 13.5V when switch activated | Below 9V or 0V detected |
| Circuit Continuity/Resistance | Less than 5 ohms motor coil resistance | Open circuit or resistance over 20 ohms |
Code B2224 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, B2224 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.