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Damaged control switch(es) or climate control panel.
Circuitry open or shorted.
Electronic Automatic Temperature Control Module Self-Test
NOTE: The vehicle interior and exterior temperatures should be between 10° - 32.2°C (50° - 90°F) when carrying out the self-test. If the temperature is not within the specified range, false in-vehicle temperature sensor DTCs will be displayed. The EATC module self-test will detect concerns in the system control functions and will display hard diagnostic trouble codes (DTCs) in addition to continuous diagnostic trouble codes for concerns that occur during system operation.
The self-test can be initiated at any time. Normal operation of the system stops when the self-test is activated.
NOTE: The key must be in the RUN position to enter the self-test. To enter the self-test, press the OFF and floor position buttons simultaneously and then press the AUTOMATIC button within two seconds. The display will show a pulse tracer around the center of the display window. The test may run as long as 30 seconds. Record all DTCs displayed.
If any DTCs are retrieved during the self-test, proceed to Electronic Automatic Temperature Control (EATC) Module Diagnostic Trouble Code (DTC) Index.
If a condition exists but no DTCs are retrieved during the self-test, proceed to Symptom Chart.
To exit self-test and retain all continuous DTCs, push the blue (cooler) TEMP button. The module will exit self-test, retain all continuous DTCs and then turn off (display blank).
To exit the self-test and clear all DTCs, press the defrost button. The display will show 888 and all function symbols for one second. The module will then turn off (display blank) and all DTCs will be cleared.
Always exit the self-test before turning the EATC system off.
Continuous DTCs will be deleted after 80 ignition switch ON cycles after a continuous condition occurs.
The paper-out sensor can be calibrated. Press and and hold the keys LF+ENTER > 3 sec. until "Tech.Access ON" appears on the display. Then press MODE -> 1-TEST -> 2-DIAG -> 3-PrntCal -> PapOut -> ENTER. Then follow the instructions shown on the display (important: close the tractor doors whilst calibrating the paper-out condition.
platen calibration has to be done . in offline press lf and enter for tech access on , then go to test menu, select diag,then select call engine , then select platen cal and press enter , it will ask remove ribbon and remove paper , then it will automatically calibrate . then ur problem will be sloved
Electronic Automatic Temperature Control Module Self-Test
The EATC module self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A diagnostic tool must be used to retrieve these concerns.
The EATC module self-test will detect concerns in the system control functions and will display hard diagnostic trouble codes (DTCs) in addition to intermittent diagnostic trouble codes for concerns that occur during system operation. The vehicle interior temperature should be between 4°-32°C (40-90°F) when carrying out the self-test. If the temperatures are not within the specified ranges, false in-car temperature sensor DTCs will be displayed.
The self-test can be initiated at any time. 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. Record all DTCs displayed.
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, GO to Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Improper Operation.
To exit self-test and retain all intermittent DTCs, push the blue (cooler) button. The control will exit self-test, retain all intermittent diagnostic trouble codes and then turn OFF (display blank).
To exit the self-test and clear all DTCs, press the DEFROST button. The vacuum fluorescent display 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.
Always exit the self-test before powering the system down (system turned OFF).
Intermittent DTCs will be deleted after 80 ignition switch ON cycles after the intermittent condition occurs.
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