EXHAUST DIFFERENTIAL PRESSURE SENSOR AMBIENT AIR TEMPERATURE SENSOR CHECK

1.Disconnect the exhaust differential pressure sensor ambient air temperature sensor connector. 2.Measure resistance between terminals No. 1 and No. 2. Standard value: 11 - 20 kΩ (at -20°C) 4.5 - 7.0 kΩ (at 0°C) 2.0 - 2.9 kΩ (at 20°C) 0.98 - 1.40 kΩ (at 40°C) 0.48 - 0.75 kΩ (at 60°C) 0.25 - 0.45 kΩ (at 80°C) 3.Remove the exhaust differential pressure sensor ambient air temperature sensor.

4.Measure resistance while heating the sensor using a hair drier. Normal condition: Temperature (°C) Resistance (kΩ) Higher Smaller 5.If the value deviates from the standard value or the resistance remains unchanged, replace the exhaust differential pressure sensor ambient air temperature sensor assembly. 6.Install the exhaust differential pressure sensor ambient air temperature sensor.