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Home >> Lincoln >> 2008 >> MKZ AWD V6-3.5L >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Pinpoint Tests >> Test H: The DATC/EATC System Is Inoperative, Intermittent Or Incorrect Operation
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Test H: The DATC/EATC System Is Inoperative, Intermittent Or Incorrect Operation

PINPOINT TEST H: THE DATC/EATC SYSTEM IS INOPERATIVE, INTERMITTENT OR INCORRECT OPERATION

Normal Operation
Under normal operation, the HVAC module - electronic automatic temperature control (EATC) or HVAC module - dual automatic temperature control (DATC) receives a ground through circuit GD116 (BK/VT). The HVAC module - EATC or HVAC module - DATC is supplied constant battery voltage through circuit SBP07 (WH/RD) and ignition switched voltage through circuit CBP20 (YE/VT).

NOTE: For a complete explanation of the DATC/EATC system functions, refer to Description and Operation.

This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Wiring, terminals or connectors
- HVAC module - EATC
- HVAC module - DATC


H1:






H2-H10:






H11-H14:




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