P040D - Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

P040D 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 P040D

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 P040D code

Labor: 1.0

The cost of diagnosing the P040D 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)

P040d 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 P040d - Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High - AutoCodes.com

P040D More Information

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Information for specific makes

  • P040D CHEVROLET Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High
  • P040D DODGE Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High
  • P040D FORD Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High
  • P040D GMC Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High
  • P040D ISUZU Exhaust Gas Recirculation Temperature Sensor 1 High Voltage

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