Maytag dishwasher won't cycle

The machine will fill and stop. The timer will cycle through to the end, but there is no function, no motor noise, etc.
There is just a tick tock clicking noise in the door panel every couple minutes.
At the end the CLEAN and Keypad 2 lights will blink steadily.
The wiring harness in the door was recently replaced by Maytag under a recall.
When I try the DRAIN/Off button the display shows cycle time and I can hear a relay clicking on the circuitboard in the door controls, but the pump motor does not come on.
I suspect maybe a failed relay on the circuit board or failed motor. There is some (heat) discoloration near two resistors on the cicuit board.
The motor armature spins easily (not jammed).
Any ideas?