Using the RAM Code U02A2, this article outlines the definition, description, causes, and related service bulletins of the lost communication with reductant quality module. This code indicates a problem in the Diesel Exhaust Fluid (DEF) Quality Sensor, which is mounted to the DEF tank and is responsible for detecting the concentration of the DEF. This problem can cause the Electronic Vehicle Information Center (EVIC) to display a “Service DEF System See Dealer” message, along with the illumination of the MIL, when the diagnostic runs and fails in two consecutive drive cycles. It is essential to understand the causes and possible solutions of the problem that this code represents in order to fix it efficiently. The causes range from DEF Quality Sensor Connector Corrosion or Foreign Material to J1939 Datalink Component Internally Shorted, and the related service bulletins are 09-004-16 REV. A and S1625000005. This article presents a comprehensive overview of RAM Code U02A2, giving readers the information and resources necessary to identify and address the issue.
What is RAM Code U02A2?
RAM Code U02A2 is a diagnostic code indicating an issue with the Diesel Exhaust Fluid (DEF) Quality Sensor. This sensor is mounted to the DEF tank and is responsible for detecting the concentration of the DEF. When the diagnostic runs and fails in two consecutive drive cycles, the Electronic Vehicle Information Center (EVIC) will display a “Service DEF System See Dealer” message and the Malfunction Indicator Lamp (MIL) will be illuminated.
Causes of RAM Code U02A2
The possible causes of RAM Code U02A2 can range from DEF Quality Sensor Connector Corrosion or Foreign Material to J1939 Datalink Component Internally Shorted.
The two related service bulletins for RAM Code U02A2 are 09-004-16 REV. A and S1625000005.
Conclusion
In conclusion, RAM Code U02A2 is a diagnostic code indicating an issue with the Diesel Exhaust Fluid (DEF) Quality Sensor, which can cause the Electronic Vehicle Information Center (EVIC) to display a “Service DEF System See Dealer” message and the Malfunction Indicator Lamp (MIL) to be illuminated. The causes of the issue range from DEF Quality Sensor Connector Corrosion or Foreign Material to J1939 Datalink Component Internally Shorted, and the related service bulletins are 09-004-16 REV. A and S1625000005. Understanding the causes and possible solutions of RAM Code U02A2 is essential for addressing and fixing the issue efficiently.
This article has provided a comprehensive overview of RAM Code U02A2, giving readers the information and resources necessary to identify and address the issue. It is important to remember that the appropriate service bulletins, 09-004-16 REV. A and S1625000005, should be consulted when diagnosing the problem associated with RAM Code U02A2. Fixing the issue efficiently requires a thorough understanding of the causes, possible solutions, and related service bulletins of RAM Code U02A2.
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