PCU IST FAULT

What does 901 mean?

Current flow in excess of 300% of the rated armature current is detected within the armature circuit. This indicates a severe overload, a fault in the motor, or a measurement error.

• Ground fault or an intermittent connection within the motor armature circuit.
• Malfunction or failure of the current measuring module.
• Suboptimal tuning or configuration of the current regulator.

Click steps to track your progress.

1. 1

   Inspect the motor armature circuit for any ground faults or intermittent connections.

2. 2

   Test the current measuring module for accurate readings and replace if faulty.

3. 3

   Review and adjust the current regulator tuning parameters.