New Holland 3839: Oxidation Catalyst Upstream Temperature Sensor Circuit Shorted to Low

The oxidation catalyst upstream temperature sensor circuit is experiencing a short to low, which may affect the accurate measurement of the temperature in the oxidation catalyst area. This condition could lead to improper engine performance or emissions control.

1. 1

   The wiring and connections of the oxidation catalyst upstream temperature sensor

2. 2

   The integrity of the sensor itself

3. 3

   The affected circuit for any signs of damage or shorting

1. 1

   Inspect

   Inspect the wiring and connections of the oxidation catalyst upstream temperature sensor for damage, corrosion, or loose connections.

2. 2

   Test

   Test the oxidation catalyst upstream temperature sensor and the affected circuit for continuity and proper resistance.

3. 3

   Replace

   If damage or malfunction is found, replace the oxidation catalyst upstream temperature sensor or repair the affected circuit as needed.