TSB Document:

Affected Component: BACK OVER PREVENTION

Summary
P203E and P203F Additional Diagnostic Information This bulletin provides additional information regarding diagnosing Diesel Exhaust Fluid (DEF) issue in extreme cold weather. Diagnostic Trouble Codes (DTCs) P203E - Reductant Level Sensor 1 Circuit Intermittent and/or P203F - Reductant Level Too Low set.

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Date Published
NOV 10, 2021
NHTSA TSB #
10204384
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