P040C - Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
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P040C Possible Causes

  • Faulty Exhaust Gas Recirculation Temperature Sensor 'A'
  • Exhaust Gas Recirculation Temperature Sensor 'A' harness is open or shorted
  • Exhaust Gas Recirculation Temperature Sensor 'A' circuit poor electrical connection

How do I fix code P040C

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P040C code

Labor: 1.0

The cost of diagnosing the P040C code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P040c Description

The Engine Control Module (ECM) monitors the Exhaust Gas Recirculation (EGR) Temperature Sensor 'A' Circuit Performance, which measures the temperature of the exhaust gas. The EGR Temperature Sensor functions by increasing the resistance with increasing exhaust gas temperature. The ECM sets the OBDII code when the EGR Temperature Sensor signal is not to factory specifications.
OBDII Code P040c - Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low - AutoCodes.com

P040C More Information

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Information for specific makes

  • P040C CHEVROLET Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low
  • P040C DODGE Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low
  • P040C FORD Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low
  • P040C GMC Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low
  • P040C ISUZU Exhaust Gas Recirculation Temperature Sensor 1 Low Voltage

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