Jeep Wrangler 2015 — technical service bulletin
Bulletin 18-041-16 · NHTSA communication 10140181 · issued Apr 7, 2016
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015
model years
1
vehicle entries
Official summary
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 one of the following Diagnostic Trouble Codes (DTCs) have been set: · **P0335 - Crankshaft Position Sensor Circuit. · P0306 - Cylinder 6 Misfire (Automatic Transmissions only). · P0456 - EVAP System Small Leak (3.6L Engine Sales Code ERB only).** · U0140 - Lost Communication With Body Control Module.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.