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P2BAD Severity
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
The purpose of the reductant system (DEF) is to reduce the amount of NOx released by the diesel engine. The engine computer (PCM) uses multiple NOx sensors to confirm the performance of the reductant system. If excessive emissions are detected, the PCM will deactive other systems to prevent additional component damage. Code P2BAD will be set.Additional codes will be stored. Those codes will need to be diagnosed and repaired.
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Call us at 877-913-1554
Available 9am – 6pm ET Monday through Friday
OBD-II Code Diagnostic Trouble Code is defined as a nox Exceedence - Root Cause Unknown
The purpose of the reductant system (DEF) is to reduce the amount of NOx released by the diesel engine. The engine computer (PCM) uses multiple NOx sensors to confirm the performance of the reductant system. If excessive emissions are detected, the PCM will deactivate other systems to prevent additional component damage. Code P2BAD will be set. Additional codes will be stored. Those codes will need to be diagnosed and repaired.