Power Window LR Motor Circuit Short To Ground
The left rear power window motor circuit is detecting an electrical short to ground, like a wire touching the car's metal frame. The window control module can't operate the motor safely because the circuit is shorted.
The ECU monitors the voltage and current in the left rear window motor circuit. When resistance drops unexpectedly due to a short to ground, the ECU detects excessive current draw. The module compares actual circuit resistance against expected thresholds and logs a fault when continuity to ground is detected outside normal operating parameters.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Circuit Resistance | 20-200 ohms (motor load dependent) | <5 ohms or short to ground detected |
| Circuit Current | 2-5 amps during operation | >10 amps or continuous ground short |
Code B1417 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, B1417 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.