What is CID 1019 & How to Solve It?

What is CID 1019:

cid 1019 refers to a fault in the exhaust gas temperature sensor circuit. inaccurate sensor readings can affect emissions control and the regeneration of the diesel particulate filter (dpf).

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Why This Happens:

• faulty exhaust gas temperature sensor.
  
• soot buildup or contamination on the sensor tip.
  
• shorted or damaged wiring.
  
• corroded connectors.
  
• ecm misinterpretation of temperature data.
  
  

How to Fix It:

1. inspect the exhaust gas temperature sensor for damage.
   
2. clean soot or debris from the sensor.
   
3. test the sensor’s resistance at various temperatures.
   
4. replace the sensor if readings are outside specifications.
   
5. verify the regeneration process post-repair.
   
   

How to Avoid It Before It Happens:

• clean exhaust systems regularly to avoid soot buildup.
  
• monitor temperature readings through diagnostic scans.
  
• replace sensors as part of scheduled maintenance.
  
• clue’s fleet management software monitors exhaust temperatures and dpf systems to prevent regeneration failures.