Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain...
Jeep technical service bulletin 18-025-16 REV. A for 2012-2013 Jeep Wrangler.
- Bulletin number
- 18-025-16 REV. A
- Component
- Fuel system, gasoline
- Summary
- Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTCs): · P0456 - EVAP System Small Leak (13 MY only). · U0140 Lost Communication With Body Control Module. Attempting to clear the DTC may be unsuccessful. Other enhancements included in this update: · Improved fuel pump relay operation. · Improved remote start time after key activation. · Improved Automatic Shutdown Relay (ASD) timer calibration.
Vehicles covered
- Jeep Wrangler 2012-2013 20122013
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