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Error Code 05 (Sunload Sensor)

WARNING: This page is about a different car, the 1994 Mercury Sable, 1994 Lincoln Continental, and 1994 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect negative battery cable. Unplug wiring harness connectors at sunload sensor and EATC control panel. Check wiring and connectors for shorted or open circuits. Repair as necessary.
  2. Sensor is a photo diode and can be checked with an ohmmeter. With harness disconnected, there should be some unspecified resistance present across sensor terminals, depending on amount of light available. If resistance is zero ohms, replace sensor.
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