NUMBER:
GROUP:
DATE:

08-078-21
08 - Electrical
May 5, 2021

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 Technical Service Bulletin (TSB) has also been released as a Rapid Response
Transmittal (RRT) 21-052, date of issue May 05, 2021. All applicable Sold and Un-Sold RRT
VINs have been loaded. To verify this RRT service action is applicable to the vehicle, use VIP
or perform a VIN search in DealerCONNECT/Service Library. All repairs are reimbursable
within the provisions of warranty. This RRT will expire 18 months after the date of issue.
SUBJECT:
Flash: Amplifier (AMP) Diagnostic and System Updates
OVERVIEW:
This bulletin involves reprogramming the AMP with the latest available software.
MODELS:
2021

(LA)

Dodge Challenger

2021

(LD)

Dodge Charger

NOTE: This bulletin applies to vehicles within the following markets/countries: North
America, APAC, EMEA and LATAM.
NOTE: This bulletin applies to vehicles built on or after March 15, 2021 (MDH 0315XX) and on
or before April 19, 2021 (MDH 0419XX) equipped with 19 Harman Kardon Amped
Spkrs W/Sub (Sales Code RCA).
SYMPTOM/CONDITION:
The following software enhancement is available:
• Amplifier update to eliminate static noise from the instrument panel mounted speakers.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
DealerCONNECT/Service Library, verify all related systems are functioning as designed. If
Diagnostic Trouble Codes (DTCs) or symptom conditions, other than the ones listed above are
present, record the issues 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. This RRT only applies
to vehicles on the RRT VIN list.

08-078-21

-2-

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 AMP with the latest software. Detailed instructions for flashing control modules
using the wiTECH Diagnostic Application are available by selecting the application’s “HELP”
tab.
2. 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:
18-60-07-94

Description

Skill Category

Amount

Amplifier (AMP) - Reprogram
(0 - Introduction)

6 - Electrical and
Body Systems

0.6 Hrs.

NOTE: The expected completion time for the flash download portion of this procedure is
approximately 22 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 depending on if this is a Rapid Response
Transmittal (RRT) or Service Bulletin.
• The “RF” failure code is required for essential module flash/reprogramming and can only be
used after confirmation that the VIN is included on the RRT.
• The failure code “RF” (Required Flash) can no longer be used on Service Bulletin flashes. The
“RF” failure code must be used on an RRT.
• If the customer’s concern matches the SYMPTOM/CONDITION identified in the Service
Bulletin, failure code CC is to be used. When utilizing this failure code, the 3C’s must be
supplied.
RF
CC

Required Flash - RRT
Customer Concern