Does the timer not shut off on the times and auto cycles?
If the timer does not shut off on the timed cycle then you will need to check for power to the timer motor.
If there is power to the timer motor on the timed cycle you have a bad timer.
If there is no power you will need to trace it back to see were you lost the power.
Most often if the timer does not advance to off on the timed cycle the timer is bad.