21-048-15 REV-A

NUMBER:
21-048-15 REV. A
GROUP:
Transmission and
Transfer Case
DATE:
October 08, 2015
This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of FCA US LLC.
THIS BULLETIN SUPERSEDES SERVICE BULLETIN 21-048-15, DATED AUGUST 10,
2015, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDES A REVISED SCAN TOOL
USAGE STATEMENT, AN ADDITIONAL MODEL, INVOLVED MARKETS, AND
REVISED BUILT DATES.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING A ECU IS
AVAILABLE BY SELECTING “HELP” THEN “HELP CONTENTS” AT THE TOP OF
THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
**THE wiTECH SOFTWARE IS REQUIRED TO BE AT THE LATEST RELEASE
BEFORE PERFORMING THIS PROCEDURE.**
SUBJECT:
Flash: Drivetrain Control Module C2020-01 ECU Internal Fault setting in the DTCM
OVERVIEW:
This bulletin involves reprogramming the Drivetrain Control Module (DTCM) with the latest
available software.
MODELS:
**2015
(BU)
Jeep Renegade**
2016
(FB)
Fiat 500X
NOTE: **This bulletin applies to vehicles within the following markets/countries:
LATAM, EMEA, and APAC.**
NOTE: This bulletin applies to BU vehicles **built on or before July 11, 2015 (MDH
0711XX)** equipped with All Wheel Drive (Sales Code DFH).
NOTE: This bulletin applies to FB vehicles **built on or before June 28, 2015 (MDH
0628XX)** equipped with All Wheel Drive (Sales Code DFH).
21-048-15 REV. A
-2-
SYMPTOM/CONDITION:
Some vehicles may experience the All Wheel Drive Light (AWD) illuminating due to DTC
C2020-01 ECU Internal Fault setting erroneously in the DTCM.
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 or if the technician finds the
DTC, 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.
1. Reprogram the DTCM 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.
2. Using wiTECH, restore configuration and align proxi. This routine is available under
the 'Diagnostic Procedures' tab found on the home, 'Vehicle View', page of wiTECH.
3. 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 allows them
to be cleared.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No:
18-19-07-9H
Description
Module, Drivetrain Control
(DTCM) - Reprogram (0 Introduction)
Skill Category
21 - Transmission and
Transfer Case
Amount
0.2 Hrs.
-3-
21-048-15 REV. A
NOTE: The expected completion time for the flash download portion of this
procedure is approximately 5 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, 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