P1478 - Shutoff path fault 5

What does P1478 mean?

A fault has been detected in the fifth shutoff path of the ECU, causing it to shut down operation. This is a safety measure due to an internal issue.

• Internal malfunction of the ECU's shutoff circuit
• Issue with external components monitored by the shutoff path
• Wiring problem

Click steps to track your progress.

1. 1

   Perform a system reset by cycling the power.

2. 2

   Check all relevant wiring and connections for damage.

3. 3

   If the fault persists, the ECU needs professional diagnosis.