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U12A3 RAM Code - Lost Communication With Particulate Matter Sensor

- Code Popularity: 2,853 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U12A3 RAM?

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)
⚠ Does your RAM have Safety Recalls? → Check here

How to Fix the DTC U12A3 RAM?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U12A3 RAM code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code U12A3 RAM Description

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

OBDII Code U12A3 RAM - Lost Communication With Particulate Matter Sensor - AutoCodes.com
U12A3 RAM Code - Lost Communication With Particulate Matter Sensor

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Code U12A3 RAM comments

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