New Holland 19021: Temperature Sensor Before Catalyst - Signal Value Above Upper Error Threshold

The temperature sensor located before the catalyst is reporting a signal value that exceeds the upper error threshold. This indicates an abnormal temperature reading in the system, which may affect engine performance or emissions control.

1. 1

   The temperature sensor before the catalyst

2. 2

   The wiring and connections to the temperature sensor before the catalyst

3. 3

   The signal integrity from the temperature sensor before the catalyst

1. 1

   Inspect

   Inspect the temperature sensor before the catalyst for physical damage or signs of overheating.

2. 2

   Check

   Check the wiring and connections to the temperature sensor before the catalyst for corrosion, looseness, or damage.

3. 3

   Test

   Test the signal output of the temperature sensor before the catalyst using a multimeter or diagnostic tool.