Audio System - No Radio Audio Output
NUMBER: 08-032-12 REV. AGROUP: Electrical
DATE: November 15, 2012
THIS BULLETIN SUPERSEDES SERVICE BULLETIN 08-032-12, DATED MAY 5, 2012,
WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDES ALL 2012 LX, LD AND JC
VEHICLE, REMOVING THE BUILD TO DATE. UPDATED SOFTWARE LEVEL.
THIS SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE
TRANSMITTAL (RRT) 11-087. 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.
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 RELEASE 13.01 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: No Audio From The Radio Caused By The Amplifier Not Communicating
OVERVIEW:
This bulletin involves re-flashing the Amplifier with updated software.
MODELS:
2011 - 2012 (JC) Journey
2011 - 2012 (LD) Charger
2011 - 2012 (LX) 300
NOTE:
**This bulletin applies to JC vehicles equipped with 368 Watt Amplifier (sales code RD6)**.
NOTE:
**This bulletin applies to LD, LX vehicles built prior to equipped with 276 Watt Amplifier (sales code RD7) or 506 Watt Amplifier (sales code RFD) or 552 Watt amplifier (sales code RDS)**.
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.
Flashing the amplifier will correct this condition.
DIAGNOSIS:
1. Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify no DTC's are set. If DTCs are present record them on the repair order and repair as necessary before proceeding further with this bulletin.
NOTE:
If no communication DTC's for the Amplifier are found, then proceed to the next step.
2. In the Network Topology view of wiTECH, determine if the Amplifier is communicating on the CAN bus by noting the color of the amplifier icon. (blue = present, red = not communicating).
3. Is the Amplifier present (blue) on the CAN bus?
a. Yes >>> This bulletin does not apply. Further diagnostics may be required.
b. No >>> Perform the Repair Procedure.
If a customers 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.
1. Perform a battery reset in order to regain communications with the amplifier.
2. Did you regain communication with the amplifier?
a. Yes >>> Proceed to Step # 3.
b. NO >>> Follow normal diagnostic in TechCONNECT, 29 - Non-DTC Diagnostics/Communication/Diagnosis and Testing, No Response From AMP (AMPLIFIER).
3. Flash reprogram the Amplifier. Help 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." This will open the Welcome to wiTECH Help screen where help topics can be selected.
4. Has the Amplifier software level been updated to **12.11.01**?
a. Yes >>> Proceed to Step # 5.
b. NO >>> The module needs to be reprogrammed again. Proceed to Step # 3.
NOTE:
If the Amplifier has been flashed a number of times then this bulletin doesn't pertain and further diagnostics need to be performed.
5. 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:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.