FCP 457
Service Bulletin Details
Public Details for: FCP 457
This service bulletin informs affected customers that they may experience coach battery drain due to the parker multiplex system not initiating the low-power sleep function when the coach is parked and the main battery disconnect is not tur
- 2018 -
Models from 2018
2018 MCI J4500 |
Service Bulletin No. 457 MODEL TYPE J4500 SUBJECT SECTION/GROUP Field Change Program DATE 7-Electrical Dec. 29, 2017 PARKER MULTIPLEX SYSTEM LOW-POWER SLEEP FUNCTION CONDITIONS Customer Complaint: Motor Coach Industries ("MCI") has become aware that some customers have experienced coach battery drain due to the Parker multiplex system not initiating the low-power sleep function when the coach is parked and the main battery disconnect is not turned to the OFF position. Cause: Incorrect programming of the multiplex controller. Corrective Action: MCI will remedy the affected coaches at no cost to owners by updating the multiplex program. However, proper repairs will require the use of specialized equipment and therefore MCI strongly urges owners of the MY2018 J4500 coaches listed in this bulletin to make an appointment as soon as possible by calling the MCI Customer Service Line at 1-800-241-2947, in order to have the repair performed by trained technicians who have the necessary equipment. 68300 68383 to 68386 68394 68396 68400 68406 to 68409 68422 to 68425 68427 to 68432 68440 68453 to 68467 68469 to 68482 68485 to 68502 Service Procedure: Read this entire procedure before beginning work. Use Safe Shop Practices At All Times. 1. Turn the main battery disconnect switch to the OFF position. 2. Chock both sides of the tires. 3. Connect a laptop, equipped with the latest version of VMM Software 7, and download the new control logic. 4. Using the VMM software, query the modules again and verify that the logic revision has been updated to the latest version. Service Bulletin No. 457 Date Dec. 29, 2017 Page 2 5. Turn the main battery disconnect switch to the ON position. 6. Position the ignition switch to the OFF position. 7. Exit the coach cabin and close the entrance door. 8. Visually inspect the modules in the front and rear junction boxes to ensure the diagnostic LED’s are illuminated and/or flashing. Allow thirty ( 30 ) minutes to expire prior to visually re-inspecting the modules. 9. After thirty ( 30 ) minutes, visually re-inspect the modules in the front and rear junction boxes, for all diagnostic LED activity to be extinguished indicating low-power sleep mode function. 10. Turn the main battery disconnect switch to the OFF position. Procedure Complete. Mail or fax the completed limited warranty claim form and verification form to MCI’s warranty department, or photocopy and mail to: MCI Fleet Support Attn: Warranty Department 7001 Universal Coach Drive Louisville, KY 40258 Fax Number 1-800-360-8886 to receive credit for the hours used to complete this task. Contact the MCI Fleet Support Technical Center at 1-800-241-2947 for any further information. Field Change Program Conditions: Specialized programming equipment is required to perform this retrofit. A labor allowance of 0.2 hours will be granted for the procedure described in this bulletin on applicable J4500 Series coaches. This labor allowance will be credited to your MCI Fleet Support Parts Account on receipt of the attached “MCI Field Change Program Verification Form” and a “Warranty Claim Form” as detailed in your Owner Warranty manual to MCI’s Warranty department. A “MCI Field Change Program Verification Form” needs to be submitted for each VIN affected. Photocopy the attached “MCI Field Change Program Verification Form” as required for the number of affected coaches in your fleet. This program will end on July 20, 2018. Motor Coach apologizes for any inconvenience resulting from this campaign, but urges you to implement this change as soon as possible. Sincerely, Motor Coach Industries MCI FIELD CHANGE PROGRAM (FCP) VERIFICATION CONTACT INFORMATION CUSTOMER NAME: ____________________________________________________ (PLEASE PRINT FCP INFORMATION – ONE FORM PER UNIT FCP#: _________ Coach Model ___________ COACH SERIAL #: (At least the last 5 digits) Model Year _____________ DATE COMPLETED __ / __ /__ MILEAGE: IMPORTANT: TO RECEIVE CREDIT FOR ANY ALLOWABLE LABOR CHARGES, THIS VERIFICATION FORM MUST BE RETURNED TO MCI UPON COMPLETION OF THE FCP. SUBMITTED BY: (Please Print) ________________________________________________________________ DATE __ / __ /__ TITLE: (Please Print) ____________________________________________ SIGNATURE: ________________________________________________________________ COMMENTS: F A X T O : 800-360-8886 MAILING ADDRESS: MOTOR COACH INDUSTRIES ATTN: WARRANTY DEPT. 7001 UNIVERSAL COACH DRIVE LOUISVILLE, KY 40258 MCI part # 03-15-7738C