What does 909 mean?

Repeated high peak to average motor armature current is detected. This condition may be caused by defective hardware, poor regulator tuning, or other oscillatory operation conditions.

• Defective hardware (can be discovered through PCU Diagnostics CDU function #998).
• Poor regulator tuning.
• Other oscillatory operation conditions.

Click steps to track your progress.

1. 1

   Use the PCU Diagnostics CDU function #998 to check for defective hardware.

2. 2

   Adjust regulator tuning parameters.

3. 3

   Investigate and correct other oscillatory operation conditions.