JEEP

18-021-16 REV. B

2016-07-20 · NHTSA 10121699

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · **P0305 - Cylinder 5 Misfire.** · P0300 - Multiple Cylinder Misfire. · P0335 - Crankshaft Position Sensor Circuit. · P0306 - Cylinder 6 Misfire. The following enhancements are also included in this software update: · Cruise control calibration improvement. · Improved engine misfire calibration on automatic transmission vehicles.

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