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NUMBER: 21-036-15
GROUP: Transmission and Transfer Case
DATE: May 29, 2015
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING A ECM IS AVAILABLE BY SELECTING “HELP” THEN “HELP CONTENTS” AT THE TOP OF THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT 15.04 OR HIGHER TO PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Transmission Shift And Drivability Enhancements
OVERVIEW:
This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software.
MODELS:
| 2015 | (FF) | Fiat 500 |
NOTE: This bulletin applies to vehicles built on or after February 17, 2014 (MDH 0217XX) and on or before March 22, 2015 (MDH 0322XX) equipped with a 1.4L engine (Sales Code EAF) and 6 Spd Aisin F21-250 HD Auto transmission (Sales Code DF4).
SYMPTOM/CONDITION:
A small number of customers may experience or notice harsh shifts.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all systems are functioning as designed. If DTCs or symptom conditions, are present other than the symptom condition listed above, record the issues on the repair order and repair as necessary before proceeding further with this bulletin.
If the customer describes the symptom/condition listed above, perform the Repair Procedure.
REPAIR PROCEDURE:
NOTE: Install a battery charger 
to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts during the flash process.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
- Reprogram the TCM with the latest available software. Detailed instructions for flashing control modules using the wiTECH Diagnostic Application are available by selecting the “HELP” tab on the upper portion of the wiTECH window, then “HELP CONTENTS.” This will open the Welcome to wiTECH Help screen where help topics can be selected.
- Clear all DTCs that may have been set in any module due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow them to be cleared.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
| Labor Operation No: | Description | Skill Category | Amount |
|---|---|---|---|
| 18-19-05-BG | Module, Transmission Control (TCM) Reprogram (1 – Semi-Skilled) | 21 – Transmission and Transfer Case | 0.2 Hrs. |
NOTE: The expected completion time for the flash download portion of this procedure is approximately 7 minutes. Actual flash download times may be affected by vehicle connection and network capabilities.
FAILURE CODE:
The dealer must choose which failure code to use. If the customer came in with an issue and the dealer found updated software to correct that issue, use failure code CC, for all other use failure code RF.
- If the customer’s concern matches the SYMPTOM/CONDITION identified in the Service Bulletin, than failure code CC is to be used.
- If an available flash is completed while addressing a different customer concern, failure code RF is to be used.
| CC | Customer Concern |
| RF | Routine Flash |
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Reprogramming
Chrysler J2534 Application Overview
Flash Availability - J2534/Pass Thru Device
Vehicle to Diagnostic Tool Reference Chart
Chrysler Recommended J2534 Devices
For Chrysler recommended J2534 device, see below table.
| J2534 Device | Firmware Version |
| CTC Vehicle Box * | 1.9 |
| UCAN 2 | 1.0 |
| Blue Streak -2534 Global Programmer | 2.10 |
| Actia I+ME Passthru | 2.07 |
* Chrysler recommends the CTC Vehicle Box Device for Chrysler SCI ECU reprogramming. SCI reprogramming is used on most PCMs and TCMs prior to the introduction of CAN bus vehicles which began in 2004 (Durango).
Compatible J2534 Devices
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CarDAQ-Plus 3 All Makes J2534 Reprogramming Tool |
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CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool |
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CarDAQ-Plus |
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CarDAQ-M |
| VSI J2534 ECU Reprogrammer | |
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Click on the link below to:
Download J2534 Application
(Install the wiTECH 2.0 J2534 Application on your computer)
Download the Setup Utility
(Configure your microPod/MDP device)
Launch wiTECH 2.0
(Once subscription and users are assigned to a tool please follow this link to access wiTECH)
https://www.mopartsp.com/support
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- J2534 Pass-Thru Programmer: TOPDON RLink J2534 is an advanced diagnostic and reprogramming tool that support all J2534 protocols, as well as D-PDU, CAN-FD and DoIP, ensuring compatibility with a wide range of modern vehicles. It offers extensive versatility with support for over 17 major automotive brands, including Chrysler, Ford, GM, Nissan, Toyota, Honda, Subaru, Land Rover/Jaguar, Volvo, Wuling, Volkswagen, Mercedes-Benz, and BMW, and so on, enjoy dealership-level functions at your fingertips
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- Proven Performance You Can Trust: Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance. Supported by TOPDON's dedicated technical experts with in-depth knowledge of both auto repair and J2534 Pass-Thru programming, the RLink J2534 provides prompt and professional assistance, ensuring a smooth setup and reliable compatibility
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Last update on 2025-07-07 / Affiliate links / Images from Amazon Product Advertising API
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