We have this truck that was driving well aside from the dashboard display not working. It just stopped driving one day. We noticed the motor for the pump was not coming on. Took it out and cleaned and checked it, the motor works but connected back to the transmission, it still won't work. Is there any sensor or anything that is supposed to make it come on to pressurised the system? Power is going to the main wires when we checked. Can someone with knowledge of the ZF Astronic lite give any input on this?
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