Nox Sensor Control Module - J583 -, Checking

General Description 

The Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881- monitors the raw emissions of NOx in the exhaust and thus calculates the amount of AdBlue to inject into the exhaust system upstream of the SCR catalyst.

The Nox Sensor Control Module -J583- Contains The Following Components: 

• Nox Sensor -G295-.

The Nox Sensor Control Module -J583- components cannot be serviced separately, it must be serviced as a unit.

Special Tools And Workshop Equipment Required 

• Multimeter.
• Wiring Diagram.
• Scan Tool.

Test Requirements 

• Fuses OK.
• Battery voltage OK.
• Switch OFF all electrical and electronic accessories.
• Vehicles with Auto. Transmission, ensure Selector Lever position is in "P".
• Vehicles with Man. Transmission, ensure Shifter Lever position is in "N" with Parking Brake applied.
• Observe all safety precautions: Safety precautions .
• View clean working conditions: CLEAN WORKING CONDITIONS .
• For Hybrid vehicles refer to: HIGH VOLTAGE SYSTEM GENERAL WARNINGS .