# Service bulletin 18\-025\-16 REV. A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10121700
- Published by NHTSA: 2017\-11\-03
- Manufacturer's number: 18\-025\-16 REV. A
- Manufacturer's date: 2016\-07\-21
- NHTSA component: FUEL SYSTEM, GASOLINE; POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10121700-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10121700-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Fuel system, Transmission and driveline

## Trouble codes named

P0456, U0140

## Vehicles listed

- 2012 to 2013 JEEP WRANGLER

## Recalls for the same vehicles and component

- [2014447](/recalls/tc/2014447.md), 2014-10-09: Electrical
- [14V631000](/recalls/nhtsa/14V631000.md), 2014-10-08: VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR; ELECTRICAL SYSTEM
- [13V234000](/recalls/nhtsa/13V234000.md), 2013-06-04: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

## Other bulletins for the same vehicles and component

- [101232](/bulletins/11010205.md), 2024-11-07, Service bulletin: POWER TRAIN. Plate \- Planetary
- [9100226](/bulletins/10248509.md), 2024-01-08, Service bulletin: ELECTRICAL SYSTEM. Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.
- [9100226](/bulletins/10244348.md), 2023-10-30, Service bulletin: ELECTRICAL SYSTEM:WIRING. Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.
- [0811214](/bulletins/10229987.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. Hands Free Feature Inoperative
- [2103314](/bulletins/10229966.md), 2023-01-17, Service bulletin: POWER TRAIN. MIL Illumination For P0730 And Transmission Shift Enhancements
- [1805714](/bulletins/10229955.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM. MIL Illumination, P0830 Clutch Pedal Switch ?A? Circuit
- [1805114](/bulletins/10229881.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Flash: J8 Mining Vehicle Speed Limiting This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. A small number of J8 Vehicles built as over\-the\-road units for non\-reg BUX markets and sold to US\-based mining operations with the intent of re\-programming the diesel PCM to limit vehicle\-speed in the mining environment. The discretion of which mining flash is to be used is left to the discretion of the operator.
- [9003081](/bulletins/10229871.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM. Dielectric Grease This product is no longer approved for use on ignition coil and spark plug boots. Current plug boot material\(silicone\) is not compatible with this grease and can cause deterioration over time.
- [2101414](/bulletins/10229859.md), 2023-01-17, Service bulletin: POWER TRAIN. Transmission Shift Enhancements
- [2101314](/bulletins/10229858.md), 2023-01-17, Service bulletin: POWER TRAIN. Transmission Oil Cooler Tube

JSON: [/v1/bulletins/10121700](/v1/bulletins/10121700)

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