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Home >> Mercury >> 2004 >> Monterey V6-3.9L VIN 6 >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Pinpoint Tests >> Test F
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Test F

PINPOINT TEST F: THE EATC SYSTEM IS INOPERATIVE, INTERMITTENT OR INCORRECT OPERATION


Test F1-F6:






Test F7-F13:






Test F13 Continued:






Normal Operation

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

Under normal operation, the EATC module receives a ground through circuit 1203 (BK/LB). The EATC module is supplied constant battery voltage through circuit 1001 (WH/YE) and ignition switched voltage through circuit 1003 (GY/YE).

Possible Causes
- An open in circuit 1203 (BK/LB), 1001 (WH/YE) or 1003 (GY/YE).
- EATC module.
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