Servo Motor Airintake Right Circuit Failure
The right air intake servo motor that controls variable intake air flow has an electrical circuit problem, similar to a broken remote control that can't send signals to your TV. The engine computer detected resistance, voltage, or signal issues in the motor's wiring or the motor itself.
The ECU monitors voltage and current draw from the right air intake servo motor circuit during operation. It checks for proper signal response when commanding the motor to adjust intake valve timing or air flow. A fault occurs when measured resistance, voltage drop, or motor response falls outside expected parameters.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Motor Circuit Resistance | 4-10 ohms | >15 ohms or open circuit |
| Motor Response Time | 100-500ms | No response or >1000ms delay |
Code B1267 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, B1267 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.