A CPCD25 is a diesel. The code you describe sounds like a code from an electric. In the zapi manual for a dual ace2 it states it to be a hardware fault in the controller. If you confirm the full model (engine or version of electric) I can see what I can find. Below is what I found.
"This alarm occurs when a mismatch is detected between the setpoint for the
overcurrent detection circuit (dependent on parameter DUTY PWM CTRAP, see
paragraph 8.2.6) and the feedback of the actual threshold value.
Troubleshooting
The failure lies in the controller hardware. Replace the logic board."
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