Seat Driver Recline Backward Circuit Short To Ground
The driver's seat recline motor circuit is shorted to ground, like a wire touching bare metal and causing an electrical short. The seat control module detects abnormal current flow and triggers the fault code.
The seat control module monitors voltage and current in the recline motor circuit. It expects a specific resistance range during operation. When resistance drops abnormally (short to ground), the module detects excessive current draw and logs the fault.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Circuit Resistance | 15-300 ohms during motor operation | Below 5 ohms indicates short to ground |
| Circuit Voltage | 11-14.5 volts | Drops to 0-2 volts under short condition |
Code B1654 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, B1654 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.