Blend Door Position Sensor

Characteristic Of Potentio Balance Resister (PBR):

Potentio Balance Resistor (PBR):

Measure voltage between terminals 27 and 16 at vehicle harness side and measure resistance according to the graph.
^ With ignition switch on, ensure tester pointer deflects smoothly when Potentio Temperature Control (PTC) is moved from 18°C (65°F) to 32°C (85°F) and vice versa.