Seat Driver Forward Circuit Failure
The driver's seat forward/backward motor circuit has lost electrical connection or is malfunctioning, similar to a broken remote control that can't communicate with the TV. The seat won't move forward or backward, or the system can't detect the motor's position.
The ECU monitors voltage and current flow through the driver seat forward motor circuit during operation. It detects open circuits, shorts, or motor resistance outside normal operating parameters. The module expects proper voltage delivery and return when seat adjustment buttons are pressed.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Motor Circuit Voltage | 12-14V during seat movement | Below 10V or open circuit detected |
| Motor Current Draw | 2-8 amps during operation | Zero amps or excessive draw above 15 amps |
Code B1765 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, B1765 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.