Note On Intermittents

WARNING: This page is about a different car, the 1992 Cadillac Fleetwood and 1992 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

If an intermittent Code F15 is being set, manipulate related wiring while observing BCM data parameter P.3.2. If failure is induced, reading will jump from normal reading to a reading outside of normal operating range. An open circuit may produce a count of 255; a short to ground may produce a count of zero.

Fig 1: BCM Code F15, Schematic, Solar Sensor Ckt Failure

Courtesy of GENERAL MOTORS CORP.

Fig 2: BCM Code F15, Flow Chart, Solar Sensor Ckt Failure

Courtesy of GENERAL MOTORS CORP.

Fig 3: BCM Code F15