LEMON Manuals: Even more car manuals for everyone
Home >> Lincoln >> 1990 >> Continental Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> A/C-Heater System - Automatic >> Testing >> Error Code Diagnosis >> Error Code "04", Ambient Temperature Sensor

Error Code "04", Ambient Temperature Sensor

  1. Symptoms associated with this code are that outside temperature display reads "-40°" or "140°". Also, check for cold air being discharged when heat is selected, or warm air being discharged when A/C is selected.
  2. Disconnect negative battery cable to reset outside temperature display. Unplug wiring harness at sensor. Measure resistance across sensor terminals. See IN-CAR & AMBIENT TEMPERATURE SENSOR RESISTANCE table.
  3. Replace sensor if resistance is not as specified. If resistance is okay, keep battery cable disconnected. Unplug connector from control assembly. Check wiring between ambient temperature sensor and control assembly for shorts or opens. Repair as necessary.
scientia non olet · About LEMON Manuals