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TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0524 - Low oil pressure (during start up in cold ambient temps). P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P02E8-00 - Diesel Intake Air Flow Position Sensor Circuit Low. P20FB-00 - Reductant Pump 2 Control Performance. P065A-00 - Generator System Performance. P00AF-00 - Turbocharger Boost Control Module "A" Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P0106-00 - Manifold Absolute Pressure Sensor Performance. Customers may experience the following:Radio may reset during engine idle. Electronic Throttle Control (ETC) lamp turns on. After a long cold soak a stumble/hesitation is felt during the first few light accelerations. Turbo Surge in park or neutral and high Idle. The cruise control and speed limited set speed doesn?t match the speedometer. It could be up to 2.5 kpm (1.5 mph) difference. Other Software enhancements:Speedometer accuracy improvement(s). Cruise control updates. Battery durability improvements in hot ambient temperatures. Improved idle quality during remote start.

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Date Published
MAR 13, 2021
NHTSA TSB #
10220956
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