Rear Wiper LED Flashing Once, Int. LED Flashing Four Times

THE MAIN TEMPERATURE ACTUATOR ON A ZONE SYSTEM DID NOT REACH HOT STOP.
1. Check if the correct HVAC control module was used.
2. Using a voltmeter, check the temperature door actuator wiring connector. Check Pin 1 for battery voltage. Move the HVAC control from hot to cold position and check Pin 5 voltage it should change from 3.5 - 4.5 volts 0.5 - 1.5 volts. If voltage is OK, go to Step 3. If not OK, check for loose or corroded connector, open or shorted circuit and repair as necessary
3. Remove actuator, and check if the gear pins are in the correct track on cam or if they are binding. If OK, go to Step 4. If not OK, repair as necessary
4. Check for binding door, if door is binding repair as necessary. If gears and door are OK, replace actuator.
5. Once repairs are completed repeat the Calibration Diagnostic and Cool-down test. Repeating the test is necessary to clear the fault codes.