Heater works and a/c works but the a/c does not blow into passenger compartment. I think there is a baffle under the dash that controls a/c air flow. How do you remove the dash to get to it?
2003
was a new model design. I have 2002 info.
you have about 4 doors that pivot and control air flow direction either by vacuum motors or electric motors. If system fails, the default is out of the defrost ducts to keep the windshield clear.
Try this test for 2002 system.
Front Panel DATC Module Self-Test (On-demand Diagnostic Trouble Codes—DTCs)
On-demand DTCs are those that are reported by an ECU when a failure is detected while executing a diagnostic test. For the DATC module this means that all faults (hard) that occur while the module is conducting a self-test shall be reported as an on-demand DTC.
The DATC module self-test through the front panel display:
To exit the self-test, press any button. This will clear all on-demand codes from the DATC module memory. If no button is pushed DTCs will continue to be displayed.
Upon exit from the self-test the DATC module returns to operational status. The DATC module executes a hard (cold boot) reset which places the DATC system in the OFF mode.
If a condition exists but no DTCs appear during the self-test, GO to Symptom Chart Condition: The DATC System Is Inoperative, Intermittent or Incorrect Operation.
Always exit the self-test before powering the system down (system turned OFF).
PS. Where is air coming out in heat or cooling modes?
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2003 Lincoln LS
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