Note On Intermittents

A BCM Code F10 will be stored in memory whenever ambient temperature drops to less than -29°F (-34°C). This code should be ignored if this cause is suspected.

If intermittent Code F10 is being set, manipulate related wiring while observing BCM data parameter P.2.6. If failure is induced, reading will jump from its normal value to a reading outside range of -29°F to 189°F (-34°C to 87°C).

If value displayed by parameter P.2.6 is not reasonably close to actual temperature of air at sensor, check for poor terminal contact or replace sensor. Temperature of air at sensor can be influenced by a hot radiator if sufficient air is not passing by sensor.

Fig 1: BCM Code F10 Schematic - Outside Air Temp. Sensor Ckt.

Courtesy of GENERAL MOTORS CORP.

Fig 2: BCM Code F10 Flow Chart - Outside Air Temp. Sensor Ckt.

Courtesy of GENERAL MOTORS CORP.