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Home >> Ford >> 2006 >> Crown Victoria V8-4.6L VIN W >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Pinpoint Tests >> Test E: No Communication With The Electronic Automatic Temperature Control Module
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Test E: No Communication With The Electronic Automatic Temperature Control Module

PINPOINT TEST E: NO COMMUNICATION WITH THE ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE


E1-E3:






Normal Operation
Under normal operation, the electronic automatic temperature control (EATC) module is grounded through circuit 57 (BK). The EATC module receives battery voltage through circuit 1566 (RD/YE) and ignition voltage through circuit 1812 (BN/WH).

Possible Causes
- Fuse(s)
- An open in circuit 57 (BK), 1566 (RD/YE) or 1812 (BN/WH)
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