hi there

can anyone shed some light or advice on this problem of ours.

Originally the pump motor had gone short circuit, the motor was replaced then was displaying error 30.
I found the diode gone short so supplied customer with a diode and identified his driver card had short circuit zenner supply.

Customer called today after driver card was replaced, the diode was fitted and a transistor replaced. Now showing error 33.

the engineered checked the wiring back to the card from the transistor, changed the hydraulic current sensor with the traction one and stil displaying error 33.

Any pointers would be very helpful.

regards