P1477 - Shutoff path fault 4

What does P1477 mean?

This code indicates a problem with the fourth shutoff path within the ECU, triggering a system shutdown for safety. This fault relates to a specific internal safety circuit.

• ECU internal fault affecting shutoff
• Failure of a related control component
• Electrical short or open in the path

Click steps to track your progress.

1. 1

   Try resetting the system by disconnecting and reconnecting power.

2. 2

   Visually inspect wiring and connections associated with the shutoff path.

3. 3

   If the error message reappears, consult a technician for ECU evaluation.