Lost Communication With Particulate Matter Sensor
Table of contents
U12A3 DODGE 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 code U12A3 DODGE?
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 DODGE code
The cost of diagnosing the U12A3 DODGE code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
U12A3 DODGE Description
The Powertrain Control Module (PCM) does not receive a message from the Particulate Matter Sensor over the Datalink circuits.