Technical Service Bulletin 18-025-16 REV. A — 2012 JEEP WRANGLER
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | 18-025-16 REV. A |
| Manufacturer | |
| Vehicle | 2012 JEEP WRANGLER |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin 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.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2012 JEEP WRANGLER
9004378
SEAT BELTS
18-025-16 REV. A
POWER TRAIN
18-025-16
ELECTRICAL SYSTEM:SOFTWARE
18-025-16
ELECTRICAL SYSTEM
18-025-16
POWER TRAIN
1802416
ELECTRICAL SYSTEM:SOFTWARE
18-053-15 REV A
ENGINE AND ENGINE COOLING
23-038-15
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
08-089-15
EQUIPMENT:ELECTRICAL
18-053-15
ENGINE