Input Circuit Testing

Circuit Testing:

Circuit Testing:

Blend Air Door Actuator Drive Circuit:

Mode Door Actuator Drive Circuit:

Air Inlet/Recirc Actuator Drive Circuit:

Front Panel Mode Control Circuit:

Front Panel Blower/Fan Control Circuit:

Solar Sensor Circuit:

In-Vehicle Temperature Sensor Circuit:

Calibration And CPU Data:

Input Circuit Tests
In the Input Circuit Test mode, the status of input circuits can be viewed and monitored. If a failure occurs within an input circuit, the ATC control module will display a "?" for unknown values, "OC" for an open circuit, or "SC" for a short circuit in the Test Selector display area.
1. To begin the Input Circuit Tests you must be in the Select Test mode.
2. With a "00" value displayed in the Test Selector and no stick man, turn the rotary temperature control knob until the test number you are looking for appears in the Test Selector display. See the Circuit Testing charts for a listing of the test numbers, test items, test types, system tested, and displayed values.
3. To see the circuit input values, depress the A/C or Recirc button. The values displayed will represent the input seen by the ATC control module.