Overloaded Electrical System May Cause Fire – 2020-2022 Marion Pumper, Rescue, Aerial, & RPM Vehicles

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-028
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Marion Body Works Inc. JAN 19, 2024 NHTSA Recall No. : 24V-028 Manufacturer Recall No. : 23E-084 Manufacturer Information :
Manufacturer Name : Marion Body Works Inc. Address : 211 West Ramsdell St.
Marion WI 54950
Company phone : 715-754-5261
Population :
Number of potentially involved : 25 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2020-2022 Marion Body Works Pumper, Rescue, Aerial, RPM Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : The recall population was determined based on product specifications associated with a specific firmware version. Recalled products have different firmware version than those not included in the recall. Firmware version is recorded on a decal on each unit.
Production Dates : MAR 10, 2020 – NOV 30, 2023 VIN Range 1 : Begin : 4S7AU2E96LC087304 End : 4S9AX2E94NC560957 ✔ Not sequential Description of Defect :
Description of the Defect : The electrical current sensing calibration was not produced to specification so that firmware would not shut off the output pin under a short circuit cuased by external load or wiring failure.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : In the event of a short circuit or wiring failure, if the electrical circuit(s)
become overloaded, depending on how the input-output node(s) are wired into the vehicle including whether it is located near a flammable fuel source, there is an increased risk of heat related damage or fire.
Description of the Cause : NR
Identification of Any Warning
that can Occur :
None
Involved Components : Part 573 Safety Recall Report 24V-028 Page 2 Component Name 1 : 8 x 16 Input-Output Node Component Description : Input Output Node Component Part Number : 6030-2000-00 Supplier Identification : Component Manufacturer
Name : Weldon Division of Akron Brass Address : 3656 Paragon Drive
Columbus Ohio 43228
Country : United States Chronology :
In early October 2023, Weldon was notified that external wiring in a vehicle using the node had melted. The part was returned to Weldon for analysis in mid-October where it was found that when an external short circuit occurred, the electrical output did not shut down as specified. Weldon conducted testing and analysis of the version of the node used in the vehicle as well as prior versions of the node and it was found that for the version of the node installed in the vehicle, the electrical current sensing calibration was outside the specified limits. Weldon found that the calibration was previously updated in production, but was not considered to pose a broader concern at the time. On October 24, 2023, Weldon decided to conduct a safety recall to address.
October 24, 2023: Weldon Submits NHTSA Safety Recall 23E-084
January 16, 2024: Marion Body Works is notified of the component recall and reached out to Weldon to obtain the SN’s affected to cross reference and identify the affected population.
January 19, 2024: Marion Body Works submits NHTSA Safety Recall for 23E-084. Description of Remedy :
Description of Remedy Program : Weldon will update the firmware in the 8×16 node as installed in affected
vehicles and in OEM inventory that are within identified version range. Weldon will evaluate and provide reimbursement for pre-notification remedies on an individual basis. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : Firmware version number on the device determines the range of devices that shall be recalled. Version 1.00 – 1.02 to be recalled.
June 14, 2023 as part of normal quality work, the current sensing calibration firmware was updated in production. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-028
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
Recall Schedule :
Description of Recall Schedule : Marion Body Works will begin notification to our dealers and customers
upon NHTSA approval of the notification letter.
Planned Dealer Notification Date : JAN 26, 2024 – JAN 26, 2024
Planned Owner Notification Date : JAN 26, 2024 – JAN 26, 2024
* NR – Not Reported

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January 26, 2024
IMPORTANT SAFETY RECALL – Recall Number: 24V-028
Affected Chassis: XXXXXXXXXXXXXXXXXXX
Dear Valued Customer,
This notice is sent to you in accordance with the requirements of the National Traffic and Mortor Vehicle Safety Act.
Weldon, a division of Akron Brass Company, has decided a safety related defect exists in certain V-MUX 8 x 16 I/O Nodes, Weldon Part Number 6030-2000-00.
What is the concern?
In the affected products, short circuit protection may not function properly. In the case of a short circuit in the wiring or the connected load, overheading of the wiring or the connected device may occur, and depending on how the product is installed in the vehicle, this could increase the risk of a vehicle fire.
Corrective Action
All of the affected nodes installed in your vehicle can be updated with on connection to the V-MUX network, without accessing the individual nodes. The design files and functionality are not affected. A Weldon service app and the downloader kit is utilized to make the firmware update. This update is estimated to take five minutes and can be completed when the vehicle is in PM without other changes.
Weldon will provide the update application to fleet owners and authorized service centers to install the firmware update along with instructions.
What should you do?
Please contact Weldon Customer Service [email protected] and reference this recall number and provide your agency name and mailing address to obtain the remedy at no cost to you.
If you have any questions or concerns, please contact:
Weldon Customer Care – P: 800-228-1161
You may also contact:
Marion Body Works – Fire & Emergency Warranty – P: 715-754-5261
Listed on this document, you will find the chassis cabs Marion has sold to you. If you agree the identified chassis, contains a safety defect, you are reminded of your responsibility to notify the National Highway Traffic Safety Administration (NHTSA) in accordance with 49CFR573. It is a violation of federal regulation to sell a vehicle subject to a safety recall without the recall first being remedied.
If after having attempted to take advantage of this recall you believe you have not been able to have your vehicle remedied without charge and within a reasonable amount of time, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Ave., S.E., Washington, D.C. 20590 or call the toll-free vehicle safety hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safecar.gov.
We apologize for any inconvenience this may cause, your safety is our first concern.
Sincerely,
Rachel Heineman
Director of Quality & Operational Excellence

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