Engine-Codes - Mercury - P009A Mercury

P009A Mercury Code - Intake Air Temperature/Ambient Air Temperature Correlation

- Code Popularity: 977 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P009A Mercury?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Intake Air Temperature (IAT) or Ambient Air Temperature (AAT) sensor
  • Biased IAT or AAT sensor
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How to Fix the DTC P009A Mercury?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P009A Mercury code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P009A Mercury Code Mean?

The P009A code indicates that the Intake Air Temperature (IAT) and Ambient Air Temperature (AAT) sensor readings differ by more than a calibrated value.

P009A Mercury Code - Intake Air Temperature/Ambient Air Temperature Correlation

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