AutoCodes - Ram - U12A3 RAM

U12A3 RAM Code - Lost Communication With Particulate Matter Sensor

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

|U12A3 RAM code possible 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)

|How do I fix the U12A3 RAM code?

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 U12A3 RAM code

Labor: 1.0

The cost of diagnosing the U12A3 RAM 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.

|What are U12A3 RAM code possible symptoms?

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

|U12A3 RAM code 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 -

|Need more information with the U12A3 RAM code?

Need more information on how to fix the U12A3 RAM code? Get Access to Factory Service Manuals

|Need help with a U12A3 RAM code?

Get the U12a3 Ram code diagnosed by a professional: Find a repair shop in your area

|U12A3 RAM code comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U12a3 Ram code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧
Repair Importance Level: 3
1=Low 2=Medium 3=High What is this?
Repair Difficulty Level: 3
1=Easy 2=Moderate 3=Hard What is this?