Displaying and Reading Diagnostic Trouble Codes

NOTE: Ford DOES NOT provide a procedure to retrieve or clear trouble codes. Code retrieval is integrated into the EATC Module Self-Test. Ford DOES NOT provide an alternate procedure for performing the Self-Test with an NGS or generic tester.

DTC Chart:

^ The EATC Self Test will detect concerns in the system control functions found during the Self Test and will display diagnostic trouble codes (DTC) in addition to intermittent trouble codes for concerns that occur during system operation. The vehicle interior temperature should be between 600°F and 800°F when performing the Self Test. If the temperatures are not within the specified ranges, false in-car temperature sensor DTCs will be displayed. Record all DTCs displayed during the test.

^ If any DTCs appear during the Self Test, follow the diagnostics procedure given under "ACTION" for each DTC given.

^ If a condition exists but no DTCs appear during the Self Test, refer to the Symptom Chart Condition: EATC System Inoperative, Intermittent or Improper Operation.

^ The Self Test can be initiated at any time with any resulting DTCs displayed. Normal operation of the system stops when the Self Test is activated.

^ To enter the Self Test, press the OFF and FLOOR buttons simultaneously and then press the AUTOMATIC button within two seconds. The display will show a pulse tracer going around the center of the display window. The test may run as long as 30 seconds.

^ To exit Self Test and retain DTCs, push the blue (cooler) button. The control will exit Self Test, retain all diagnostic trouble codes and then turn OFF (display blank).

^ To exit Self Test and clear all diagnostic trouble codes, press Defrost button. The VFD window will show 888 and all function symbols for one second. Then, the EATC Control Assembly will turn OFF (display blank) and all DTCs will be cleared.

The Self Test should be deactivated before powering the system down (system turned OFF). Intermittent DTCs will be deleted after 80 ignition switch ON cycles after the intermittent condition occurs.