08-020-14

NUMBER:
GROUP:
DATE:
08-020-14
Electrical
February 25 , 2014
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 Chrysler Group LLC.
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.
THE wiTECH SOFTWARE LEVEL MUST BE AT 14.02 OR HIGHER TO PERFORM THIS
PROCEDURE.
SUBJECT:
Flash : Radio May Be Muted Caused By The Amplifier Not Communicating
OVERVIEW:
This bulletin involves updating the Amplifier's software.
MODELS:
2013 - 2014
(DJ)
2500 Pickup
2013 - 2014
(OS)
1500 Pickup
2013 - 2014
(DX)
Truck (Mexico)
2013- 2014
(02)
3500 Pickup
2014
(WD)
Durango
2014
(WK)
Grand Cherokee
2014
(W2)
Grand Cherokee (Venezuela)
2014
(W3)
Grand Cherokee (Egypt)
NOTE: This bulletin applies to vehicles built on or before January 22, 2014 (MOH
0122XX) equipped with 9 Amplified Speakers W/Subwoofer (sales code RC3)
or 506 Watt Amplifier (sales code RFD).
SYMPTOM/CONDITION:
The customer may indicate that there is no audio and/or radio is muted. This condition may
be caused by the amplifier not communicating on the bus. On further inspection U0186-00
Lost communication with the audio amplifier may be found.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, If Diagnostic Trouble Codes (DTC's) are present, other then the ones
listed above. Record them on the repair order and repair as necessary before proceeding
-2-
08-020-14
further with this bulletin .
If the customer describes the symptom , 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.
In the Network Topology view of wiTECH , determine if the Amplifier is commun icating
on the CAN bus by noting the color of the amplifier icon . (blue = present, red = not
communicating) .
2. Is the Amplifier present (blue) on the CAN bus?
a. Yes>>> Update the amplifier software, proceed to Step #6
b. No >>> Proceed to Step #3 .
3. Pull the amplifier fuse F71 which is located in the underhood power distribution center,
to regain communications with the amplifier.
4. Reinstall the amplifier fuse (F71) and check on the Topology screen if it's now
communicating.
5. Did you regain communication with the amplifier?
a. Yes>>> Proceed to Step #6 .
b. NO>>> Follow normal diagnostic in TechCONECT, 29 - Non-OTC
Diagnostics/Communication/Diagnosis and Testing , No Response From AMP
(AMPLIFIER).
6. Using the wiTECH Diagnostic Application for flashing the Amplifier is made available
through the wiTECH Diagnostic Application . For instructions select the "HELP" tab on
upper portion of the wiTECH window, then "HELP CONTENTS. " Th is will open the
Welcome to wiTECH Help screen where help topics can be selected .
7. 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 .
POLICY:
Reimbursable within the provisions of the warranty .
TIME ALLOWANCE:
Labor Operation
No:
18-60-07-98
Description
Module , Amplifier - Inspect &
Reprogram (1 - Semi-Skilled)
Skill Category
6 - Electrical
and Body
Systems
Amount
0.2 Hrs .
NOTE: The expected completion time for the flash download portion of this
procedure is approximately 10 minutes. Actual flash download times may be
affected by vehicle connection and network capabilities.
FAILURE CODE:
-3-
IFlash Module
08-020-14