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June 12, 2020 NHTSA CAMPAIGN NUMBER: 20V352000
Overvoltage Alternator May Cause Engine Shutdown
If the engine shuts down or loses power while the vehicle is in motion, this may increase the risk of a crash.
NHTSA Campaign Number: 20V352
Manufacturer Motor Coach Industries
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 918
Summary
Motor Coach Industries (MCI) is recalling certain 2018-2020 D4000, D4005, D4500, D4505 and D45CRTLE buses manufactured with electric cooling fans (E-fan) for the radiator and charge air cooler, Borg Warner 55SI model dual alternator configuration (with a sense stud and wire), and Parker Vansco Multiplexing Module (VMM) Multiplex system. A build-up of debris, corrosion, and/or water flow could cause a high resistance path to ground for the sense stud on the back of the alternator and cause the alternator to produce excessive voltage output, which may exceed the threshold limit currently programmed in the VMM and result in a loss of engine power and vehicle shutdown.
Remedy
MCI will notify the affected owners, and dealers will install a new application code in the Parker VMM multiplex modules increasing the overvoltage threshold limit, free of charge. The recall began July 23, 2020. Owners may contact MCI customer service at 1-800-241-2947. MCI’s number for this recall is SB 479.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
| Subject: Parker Multiplex Application Code Reflash | |||
| Field Change Program:
Field Campaign | FCP Number:
479 | Revision:
A | Date:
July 22, 2020 |
| Coach Section:
07- Electrical | P/N:
07-08-5828 | Type:
Safety Recall | |
| Ref. NHTSA Recall No.: 20V-352 | Ref. Transport Canada Recall No.:
2020-276 |
Application:
| Coach Model | Model Year | VIN |
| J4500 | 2019 – 2020 | 68801, 68849, 68855, 68953-68955, 68983 – 68987, 68989 – 69008, 69010, 69013, 69031 – 69705, 69707 – 69861, 69863 |
| D45CRT-LE | 2019 | 81000 – 81046, 81050, 81052, 81070, 81077 |
| D-Series | 2017 – 2020 | 14515, 14827 – 14836, 14857, 14916 – 14920, 14955, 14956, 14984 – 14987, 15015, 15038 – 15047, 15049 – 15059, 15097 – 15119, 15154 – 15156, 15185, 15201 – 15207, 15239, 15241, 15243, 15245, 15247, 15249, 15327, 15376, 15377, 15425, 15427 – 15429, 15433, 15439, 15472 – 15474, 15477 – 15479, 15537 – 15564, 15582, 15585 – 15594, 15619 – 15642, 15652 – 15717, 15719, 15722, 15723, 15740 – 15742, 15752, 15753, 15768, 15769, 15786, 15787, 15801 – 15815, 15818 – 15820, 15822 – 15825 |
| This field campaign does not necessarily apply to all the above-mentioned coaches.
The owners of the coaches affected by this field campaign will be advised by a letter indicating the Vehicle Identification Number (VIN) of each applicable coach. | ||
WARNING
Read this entire procedure before beginning work.
Use Safe Shop Practices at All Times.
To avoid personal injury:
a. Proper Personal Protective Equipment (PPE) must be worn. Safety glasses and protective gloves are required for working with DEF Fluid.
b. Turn the main battery disconnect switch to the OFF position.
c. Ensure that both the front and the rear wheels are chocked.
d. Position the ENGINE RUN and ENGINE START switches on the engine compartment remote control box to the OFF
e. Allow enough time for components to cool down prior to working in the engine compartment.
1.0 Description
Customer complaint:
Motor Coach Industries (MCI) has become aware that certain J4500 and D-series coaches equipped with electric cooling fans (E-fan) for the radiator and charge air cooler, Borg Warner 55SI model dual alternator configuration (with a sense stud and wire), and Parker Vansco Multiplexing Module (VMM) Multiplex system may experience alternator overcharge, which could result in loss of engine power and vehicle shutdown. A loss of engine power and vehicle shutdown may result in a crash and cause personal injury.
Cause:
A build-up of debris, corrosion, and/or water flow could cause a high resistance path to ground for the sense stud on the back of the alternator, which in turn could cause the alternator to operate in an open field mode. It is then possible for the transient voltage to exceed the overvoltage threshold limit of the multiplex module as it is currently programmed.
Corrective action:
MCI will remedy the affected coaches at no cost to customers by reflashing the Parker multiplex application code. Proper repairs will require the use of specialized equipment, and therefore MCI recommends owners of the affected coaches to make an appointment as soon as possible by calling the MCI Customer Service Line at 1-800-241-2947, to have the repairs performed by trained technicians who have the necessary equipment.
2.0 Material requirements
No material required.
3.0 Special tools
Laptop with the latest Parker diagnostic software
USB Link 2 adapter
Parker VMM application code, version: 935602 V103.8 Build 121
4.0 Procedure
Cycle the ignition.
Turn off the ignition and connect the NEXIQ plug to the CAN0 port in the Rear Junction Box or under the dash.
Connect the USB of the NEXIQ tool to the laptop.
Open the “Diagnostic Software” folder on the desktop and run the latest VMM software.
Click “Accept” when you see a warning sign.
Select tools from the menu and click “Query VMMs.”
Click “Query.”
Click “Application” and click “Browse” in the download application window.
Click “ok” when a warning dialog appears.
Click “Yes” when you see a confirmation window.
Click “Close” when you see download successful window.
5.0 Field Change Program Conditions:
Specialized programming equipment is required to perform this campaign. Please contact the MCI Customer Service Line at 1-800-241-2947 to arrange to have the repairs performed by trained technicians who have the necessary equipment.
A labor allowance of 0.5 hour will be granted for the rework.
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.
Motor Coach apologizes for any inconvenience resulting from this campaign but urges you to implement this change as soon as possible.
Sincerely,
July 23, 2020
IMPORTANT SAFETY RECALL
This notice applies to your vehicle(s) [«UNIT»]
«CUST_NAME»
ATTENTION: TECH SERVICE DEPT/MAINT
«ADDRESS_1»
«CITY», «STATE» «ZIP»
USA
SUBJECT: SAFETY RECALL: PARKER MULTIPLEX APPLICATION CODE REFLASH
Ref.:
NHTSA # 20V-352
MCI Service Bulletin 479
Attention Owner:
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.
Motor Coach Industries (“MCI”) has decided that a defect which relates to motor vehicle safety exists on certain MCI model year 2018 – 2020 J4500 and D series coaches equipped with electric cooling fans for the radiator and charge air cooler, Borg Warner 55SI model dual alternator configuration (with a sense stud and wire), and Parker Vansco Multiplexing Module Multiplex system. The affected vehicles may experience an alternator overcharge due to a build-up of debris, corrosion, or water flow, which could result in loss of engine power and vehicle shutdown. A loss of engine power and vehicle shutdown could result in a crash and cause personal injury. Please see the enclosed MCI Service Bulletin 479 for further information.
MCI is conducting a recall of the affected vehicles to repair the defect condition. Please see the enclosed MCI Service Bulletin 479 for further information. MCI will remedy the affected coaches at no cost to customers by reflashing the Parker multiplex application code. Proper repairs will require the use of specialized equipment, and therefore MCI recommends owners of the affected coaches to make an appointment as soon as possible by calling the MCI Customer Service Line at 1-800-241-2947, to have the repairs performed by trained technicians who have the necessary equipment. MCI estimates that it will take approximately a half hour to make the necessary repairs.
MCI records indicate that you are the owner or operator of the following vehicle(s) included in this recall:
«Unit_Numbers»
MCI urges you to have the recall work performed on your vehicle(s) as quickly as possible.
You may contact the MCI Customer Service Line at 1-800-241-2947 if you have any questions about this recall campaign or wish to make arrangements to have your vehicle(s) repaired at an authorized MCI service center. Submittal of MCI Warranty Claim Forms may be completed on MCI’s website at https://fleetsupportiw.mcicoach.com/iwarranty/signon (click on Customer Care System), or a photocopy of the Warranty Claim Form found in the Warranty Manual can be mailed / faxed to the MCI Warranty Department. Please refer to Service Bulletin 479, and your OWNER LIMITED WARRANTY MANUAL, for more detailed information.
After contacting MCI Customer Service, if you are still unable to have the safety defect remedied without charge and within a reasonable time, you may submit a written complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590, or call 888 327-4236 (TTY: 800-424-9153), or go to https://www.safercar.gov if remedy difficulties exist.
If you are the lessor of the vehicle(s) identified above, Federal law requires that you forward this notice by first class mail to the most recent lessee(s) known to you, within ten days of your receipt of this notice.
If you have sold or otherwise transferred the vehicle(s) identified above, please contact the MCI Customer Service Line at 1-800-241-2947 with all of the information you have regarding the current owner/operator of the vehicle(s).
If you had your vehicle repaired for this condition prior to receipt of this notice and incurred any costs, you may be eligible for reimbursement. Please contact the MCI Customer Service Line at 1-800-241-2947 for further information in that regard.
We regret the inconvenience this may cause you, but urge you to implement the recall procedures with respect to your vehicle(s) as soon as possible for your added safety and satisfaction.
Sincerely,
Motor Coach Industries
Warranty Department
Enclosure: MCI Service Bulletin 479
MOTOR COACH INDUSTRIES
200 East Oakton Street
Des Plaines, IL 60018
TOLL FREE 866 624 2622
www.mcicoach.com
15 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| MCI | D4000 | 2018-2020 |
| MCI | D4005 | 2018-2020 |
| MCI | D45 CRT LE | 2018-2020 |
| MCI | D4500 | 2018-2020 |
| MCI | D4505 | 2018-2020 |
8 Associated Documents
Recall 573 Report- Amendment 1
RCLRPT-20V352-6151.PDF 219.885KB
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Recall Acknowledgement
RCAK-20V352-8592.pdf 245.163KB
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Defect Notice 573 Report
RCLRPT-20V352-3743.PDF 219.889KB
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Recall Quarterly Report #1, 2020-3
RCLQRT-20V352-2520.PDF 211.143KB
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Recall Quarterly Report #2, 2020-4
RCLQRT-20V352-3872.PDF 211.248KB
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Owner Notification Letter(Part 577)
RCONL-20V352-8428.pdf 195.961KB
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Remedy Instructions and TSB
RCRIT-20V352-5879.pdf 1129.874KB
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Recall Quarterly Report #3, 2021-1
RCLQRT-20V352-9252.PDF 211.329KB
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Heavy Duty Truck Reprogramming
Description:
Designed for flexibility, the USB-Link 3 Wired Edition connects to your PC, tablet, or smartphone with a USB cable, allowing techs to directly connect to a device when working in the field or during signal interruptions.
Built to support the latest protocols (CAN FD, DoIP) and compatible with a wide range of OEM diagnostics software, the USB-Link 3 is our most advanced VCI to date, with the performance and technology you can rely on well into the future.
The USB-Link™ 3 comes with the following:
- Latching USB Cable (PN 404032)
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- J1962 Adapter (16-Pin OBD II, 1 Meter (PN 491113)
The USB-Link™ 3: Wireless is also available (PN 121052).
Specifications
Vehicle Network Protocol Support
CAN FD / J1939 FD / ISO15765 FD - 250K, 500K, 1M b/s with auto baud detection
Single wire CAN (SWCAN)
ISO 11898-3 Fault Tolerant CAN (FTCAN)
Diagnostics Over Internet Protocol (DoIP)
J1708
J1850 VPW (Class 2)
ISO PWM (SCP)
ISO 9141 / KWP2000 (ISO 14230) K/L line
ALDL 9600 and 8192 baud
ATEC 160 baud
Windows® Vehicle Communication API
Windows® Vehicle Communication API
RP1210 a/b/c
J2534 (2004 draft)
J2534-1 partial implementation (commercial vehicle focused)
Operating System Compatibility
iOS
Android™
Windows® 10, 11
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USB 2.0 (vehicle-to-PC connectivity)
Bluetooth® 2.1 + EDR
Wi-Fi (dual band)
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DiagnosticLink Order Site:
DiagnosticLink Direct Link:
https://diagnosticlink.nexiq.com/DTNA/Default.aspx
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Last update on 2025-05-08 / Affiliate links / Images from Amazon Product Advertising API
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