Preliminary Inspection
WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
- Verify customer concern by operating system. Visually inspect for obvious signs of mechanical or electrical damage of following:
- Loose, missing or damaged compressor drive belt.
- Loose or disconnected A/C clutch.
- Contaminated or burned A/C clutch.
- Broken or leaking refrigerant lines.
- Obstructed in-vehicle temperature sensor.
- Disconnected in-vehicle temperature sensor aspirator hose.
- Damaged Electronic Automatic Temperature Control (EATC).
- Damaged coolant temperature sensor.
- Engine coolant leak.
- Blown Battery Junction Box (BJB) fuse No. F26 (65-amp).
- Blown Central Junction Box (Central Junction Box (CJB) fuses F33 (20-amp), F36 (7.5-amp), F37 (10-amp), F39 (20-amp), F45 (15-amp), F47 (15-amp), F58 (10-amp) or F59 (7.5-amp).
- Blower motor inoperative.
- Compressor inoperative.
- Disconnected electrical connectors.
- Engine cooling fan inoperative.
- Missing or damaged joint connectors.
- Circuitry open or shorted.
- If an obvious cause for an observed or reported concern is found, correct cause (if possible) before proceeding. If concern is not visually evident, perform electronic automatic temperature control module self-test. See ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE SELF-TEST under SELF-DIAGNOSTIC SYSTEM. If a condition exists but no DTCs are retrieved during self-test, proceed to SYMPTOM TESTS .