Reductant Control Module Received Implausible Data From ECM/PCM
Table of contents
U11C1 CHRYSLER Possible Causes
- Faulty Diesel Exhaust Fluid (DEF) Dosing Control Unit
- Diesel Exhaust Fluid Dosing Control Unit harness is open or shorted
- Diesel Exhaust Fluid Dosing Control Unit circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How do I fix code U11C1 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’s pins.
Cost of diagnosing the U11C1 CHRYSLER code
The cost of diagnosing the U11C1 CHRYSLER 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)
U11C1 CHRYSLER Description
The Diesel Exhaust Fluid (DEF) Dosing Control Unit is used to control the operation and monitoring of the Diesel Exhaust Fluid system. The DEF Dosing Control Unit is the central control for the aftertreatment diesel exhaust fluid dosing system, and handles the tank level sensing, tank temperature sensing, line heating, and tank heating. The DEF Dosing Control Unit shares information with the Powertrain Control Module (PCM) over the J1939 Data Link. The PCM will illuminate the MIL light after the diagnostics runs and fails for two consecutive trips. The PCM will turn off the MIL light when the monitor runs and passes in three consecutive key cycles. The Diagnostic Trouble Code (DTC) sets when the DEF Dosing Control Unit cannot interpret Data link messages from the Powertrain Control Module.