HEATER FAN INOP. NO AIR FROM VENTS. NEEDS EATC MODULE. NO REPAIR NO CHARGE.
If the dealer reported this, they did not follow the diagnosis and testing procedure in the factory manual.
The Blower Motor Does Not Operate
- Circuitry open/shorted.
- Blower motor.
- A/C blower motor speed control.
- Blower relay.
If you notice, no mention of the EATC is given in this troubleshooting step. As previously mentioned, the small wire harness between the blower motor speed control and blower motor is a common malady.
If the blower motor harness is the problem,
HERE is a link to a technical write up for this problem.
The blower motor speed controller can also be at fault if there are signs of corrosion from water intrusion into the passenger cabin from this area. Point is, there are several diagnostic procedures the dealer should have performed before announcing the EATC module needs replaced.
"No air from vents" could have another meaning as well. Is the blower motor working at all or is the air being blown from the defroster vents only? If the blower motor is working but air is only coming from the defroster vents, there is a vacuum problem likely associated with the dash removal.
You can also easily self-test the EATC module for electrical concerns. To self-test the EATC, follow the procedures here:
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 NGS tester 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 (DTC) 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 performing 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, refer to the 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 self-test and clear all diagnostic trouble codes, 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.
There have been cases of the EATC self-test not operating as described, so do not jump to conclusions if that indeed is the case. Most likley the EATC module is not at fault from the description given. But if no DTC's are given, you can be assured the EATC module is not at fault. IF indeed you do have DTC's reported, post them here for further analysis.
The dealer has already demonstrated their deficiency and lack of knowledge, I would not return the car there! Find a local shop who is willing to follow the advice given here and you will soon enjoy the car again.