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TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
On certain vehicles equipped with a 6.6L diesel engine (RPO L5P), the DEF tank connector may overheat and set the following diagnostic codes (P10D9, P143C and P10F3), which will result in reduced engine speed. Dealers are to reprogram the reductant control module.

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Date Published
JAN 20, 2022
NHTSA TSB #
10206819
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