Flash: Transmission Control Module Body Control Module And Instrument Cluster Interface Enhancements To Improved Transmission Performance (18-020-14)

Publication date: 2014-03-19
Reference number: 18-020-14

FLASH: TRANSMISSION CONTROL MODULE BODY CONTROL MODULE AND INSTRUMENT CLUSTER INTERFACE ENHANCEMENTS TO IMPROVED TRANSMISSION PERFORMANCE

TECHNICAL SERVICE BULLETIN

Reference Number(s): 18-020-14, Date of Issue: March 19, 2014

FIAT:	2014 500L (BF)
GROUP:	Vehicle Performance

NOTE: THIS SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE TRANSMITTAL (RRT) 14-029. ALL APPLICABLE SOLD AND UN-SOLD RRT VIN's HAVE BEEN LOADED. TO VERIFY THAT THIS RRT SERVICE ACTION IS APPLICABLE TO THE VEHICLE, USE VIP OR PERFORM A VIN SEARCH IN TECHCONNECT. ALL REPAIRS ARE REIMBURSABLE WITHIN THE PROVISIONS OF WARRANTY.

NOTE: HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH DIAGNOSTIC APPLICATION WINDOW.

NOTE: THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 14.03 OR HIGHER TO PERFORM THIS PROCEDURE.

SUBJECT

Flash: Transmission Control Module Body Control Module And Instrument Cluster Interface Enhancements to Improved Transmission Performance

OVERVIEW

This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM), Body Control Module (BCM), and the Instrument Panel Cluster (IPC) with new software.

MODELS

MODELS DESCRIPTION

2014

(BF)

500L

NOTE: This bulletin applies to vehicles equipped with a 6 - SPD C635 Dual Dry Clutch Auto Trans (sales code DA1) built on or before January 16, 1014 (MDH0116XX).

SYMPTOM/CONDITION

Customer may desire refined transmission gear selection performance.

DIAGNOSIS

Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as designed. If DTC's are present record them on the repair order and repair as necessary before proceeding further with this bulletin.

If a customer's VIN is listed in VIP or your RRT VIN list, perform the repair. For all other customers that describe the symptom/condition, 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 BCM, TCM and IPC with the latest software. Help using the wiTECH Diagnostic Application for flashing control modules is available through the wiTECH Diagnostic Application. For instructions select the "HELP" tab on upper portion of the wiTECH window, then "HELP CONTENTS". This will open the Welcome to wiTECH Help screen where help topics can be selected.
Follow the detailed service procedures available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical > Electronic Control Modules - Service Information > Module - Powertrain Control > Standard Procedures > ECM Programming.
After ECM reprogramming, the following must be performed: clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow the tech to clear them.

NOTE: You must perform the Transmission relearn procedures.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

TIME ALLOWANCE DESCRIPTION

Labor Operation No:	Description	Skill Category	Amount
18-19-02-G9	Module, BCM, TCM, and IPC - Reprogram (1 - Semi-Skilled)	2 - AUTOMATIC TRANSMISSION	0.6 Hrs.

FAILURE CODE

FAILURE CODE DESCRIPTION

FM	Flash Module