Note On Intermittents:

If an intermittent Code B112 is being set, manipulate the related wiring while observing BCM data BD28. If the failure is induced, the reading will jump from its normal value to a reading outside the range of -34° to 209°F.

If the value displayed by BD28 is not reasonably close to the corresponding gauge pressure reading, check for poor terminal contact or replace sensor.

Fig 1: Code B112, A/C Low Side Temperature Sensor Circuit (Toronado)

Fig 2: Code B112, Schematic