TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
Flash: 6.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module with the latest available software. A small number of customers may experience one or more of the following conditions. ? With the cluster set on metric units, they are unable to accurately increase or decrease the cruise control set speed using the resume or set buttons. Instead of changing vehicle speed by 1 KPH when pressing the buttons, the vehicle speed will increase approximately 1.6 KPH. ? Potential gear hunting during cruise operation at lower vehicle speeds (25-40mph). ? The generator indicator light may be illuminated on the instrument cluster even though the generator is properly charging. In addition, a small number of customers with manual transmission equipped vehicles, may experience certain symptom/conditions or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Code has been set: ? P2096 - Downstream Fuel Trim System 1 Lean. (LC vehicles with sales code ESH with a manual transmission (sales code DEC). ? P2097 - Downstream Fuel Trim System 1 Rich. (LC vehicles with sales code ESH with a manual transmission (sales code DEC). ? P2098 - Downstream Fuel Trim System 2 Lean. (LC vehicles with sales code ESH with a manual transmission (sales code DEC). ? P2099 - Downstream Fuel Trim System 2 Rich. (LC vehicles with sales code ESH with a manual transmission (sales code DEC). ? P0300 - Multiple Cylinder Misfire (set during engine warm-up) (LC vehicles with sales code ESH with a manual transmission (sales code DEC).

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Date Published
MAY 05, 2015
NHTSA TSB #
10148898
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