Technical Service Bulletin 18-077-15 — 2014 JEEP WRANGLER
POWER TRAIN
Bulletin Details
| TSB ID | 18-077-15 |
| Manufacturer | |
| Vehicle | 2014 JEEP WRANGLER |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
Flash: Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) set in the PCM memory: ? U0140 - Lost Communication With Body Control Module. Customers may also describe one or more of the following conditions: ? Less than desired shift points during Wide Open Throttle (WOT) operation. ? Perceived misfire under normal acceleration. Software update is also available for customers with vehicles equipped with Manual Transmissions (DEH) to disable the starter protection feature for Rock Crawling.
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 2014 JEEP WRANGLER
104087
UNKNOWN OR OTHER
100192
STRUCTURE:BODY
08-005-17 REV. A
AIR BAGS
68105583A$
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
0200116
SUSPENSION:FRONT
0200116
UNKNOWN OR OTHER
1PH98RXFA$
EQUIPMENT
68143886A$
ENGINE AND ENGINE COOLING
02-008-15
SUSPENSION
18-053-15 REV A
ELECTRICAL SYSTEM:WIRING