Electrodrive Fan 1 Operational Failure (Driver Side)
The engine's driver-side cooling fan isn't working properly, so the engine can't cool itself down effectively. It's like having a broken air conditioner in your car on a hot day.
The ECM monitors fan motor current draw, voltage supply, and PWM duty cycle commands to verify the fan responds to thermal demands. The ECU expects current flow and RPM feedback when a fan command is sent; absence of load or feedback triggers this fault.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Fan Motor Current Draw | 3–15 amps (depends on fan stage) | No current or below 0.5 amps when commanded on |
| Coolant Temperature Trigger | Fan activates 195–210°F, deactivates 180–195°F | Fan fails to engage despite coolant temp exceeding threshold |
Code P1476 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P1476 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.