Engine-Codes - Chrysler - U12A3 Chrysler

U12A3 Chrysler Code - Lost Communication With Particulate Matter Sensor

- Code Popularity: 777 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 U12A3 Chrysler?

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 Particulate Matter Sensor
  • Particulate Matter Sensor harness is open or shorted
  • Particulate Matter Sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC U12A3 Chrysler?

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 U12A3 Chrysler 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 U12A3 Chrysler Code Mean?

The Powertrain Control Module (PCM) does not receive a message from the Particulate Matter Sensor over the Datalink circuits.

U12A3 Chrysler Code - Lost Communication With Particulate Matter Sensor

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