AutoCodes - OBDII Code List - P040A FORD

P040A FORD - Exhaust Gas Recirculation Temperature Sensor 'A' Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

P040A FORD 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 P040A FORD?

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.
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Cost of diagnosing the P040A FORD code

Labor: 1.0

The cost of diagnosing the P040A FORD code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Possible Symptoms

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

P040A FORD 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 P040a Ford - Exhaust Gas Recirculation Temperature Sensor 'A' Circuit - AutoCodes.com

More Information

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