NHTSA ID Number: 10191788
Manufacturer Communication Number: TechTalk12372K
TSB/Document Date: 2021-05-06
Summary
Tech Talk continuing discussion on MARMON HARRINGTON VPD ELGIN SWEEPER DROP OOUT.
4/28/2021 MARMON HARRINGTON VPD/ELGIN SWEEPER DROP OOUT - DTNA Solutions
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> MARMON HARRINGTON VPD/ELGIN SWEEPER DROP OOUT
@ ~ Robert_Cadell_J
MacGyver
03-31-2021 12:11PM
MARMON HARRINGTON VPD/ELGIN SWEEPER DROP OOUTS
Vehicle Information
VIN: IFVACXFC3MHMP0735 Model: M2 106 CONVENTIONAL CHASSIS
Model Year: 2021 Mileage: 23 miles
Make: FTL Are you currently seeing this same issue on
other DTNA vehicles at your location?: no
Base Model: M2106
Vehicle Systems Involved
POWER TRAIN VEHICLE SPEED CONTROL OTHER SYSTEM (ELGIN
SWEEPER/VPD )
ELECTRICAL
WE HAD ANEW UNIT COME IN, PREPED UNIT, AT TIME OF DELIVERY, DRIVER RETURNED
STATING HARD SHIFTING,
0271 3/8/21 BRAKE LIGHTS INOPERATIVE. JUMPED BRAKE SWITCH AND BRAKES DIDNT
COME ON. TRACED WIRE 1316 TO CHASSIS MODULE AND GROUNDED WIRE 1316 AND BRAKE
LIGHTS CAME ON. WIRE BROKEN BETWEEN BRAKE SWITCH AND CHASSIS MODULE. FOUND
BROKEN WIRE AT DRIVERS SIDE GOING THROUGH FLOOR. REPAIRED WIRE AND WRAPPED
HARNESS BACK UP AND REASSEMBLED DASH AND AND LOWER LEFT DASH. HARNESS A66-
07275-000 RED AND WHITE WIRE NUMBER 1316. DIAGRAM WITH TICKET.
3/24 6921 CHECK OVER UNIT FOUND SHORT IN DATABUS WIRING IN VPD BOX, ADVISED TIM AT
FONTAINE, ISSUE IS WHERE THE DATABUS WIRING COMES OUT OF THE 31 PIN PLUG UP TO
DATABUS Y CONNECTOR AND TO VPD ECU,
NO CODES IN ANY MODULE, ENGINE, TCU, ABS, DASH, BHM, CHM.
3/29 6921 REMOVE OLD VPD BOX, INSTALL NEW, SWAPPED OVER REPLACEMENT VPD
MODULE, START AND RUN UNIT, TEST DROVE, FOUND UNIT NOT WANTING TO SHIFT NOW,
2ND WILL HOLD THE GEAR UNTIL YOU LET OFF THE THROTTLE SAME WITH 3RD AND 4TH,
5TH WONT HARDLY DROP IN. CAME BACK TO SHOP, HOOKED UP LAPTOP, TOOK TRACE FILE
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4/28/2021 MARMON HARRINGTON VPD/ELGIN SWEEPER DROP OOUT - DTNA Solutions
WITH PCAN PROGRAM, SAME ISSUES, SAVED P CAN FILE TO ONE DRIVE SHARED FOLDER
SUPPLIED BY MARMON EMAILED NATHAN WEBSTER AT MARMON TO LOOK OVER LOG FILE
AND ADVISE, NATHAN ADVISED VPD MODULE WAS NOT ONLINE,
5/50 6921 CHECK BACK OVER UNIT FOUND VPD MODULE NOT ON LINE PER NATHAN FOUND
11.2V ON DATABUS WIRING GREEN J1939 CIRCUIT HAD THAT VOLTAGE ALL THE WAY TO CGW,
REMOVED CGW CONNECTOR, STILL HAVE 11.2 V, TRACE WIRING BACKWARDS, DISASSEMBLE
DASH IN UNIT TO MAKE SURE OF NO PINCHED WIRING FOR 250 K DATABUS, NONE FOUND,
ISSUE OS OUTSIDE. REMOVE LEFT SIDE (TOWARDS CAB) HARNESS END, VOLTAGE DROPPED
OUT, FOUND AT PIN 9 CIRCUIT 17R-CU-69 NO MATING CONNECTOR NOR PIN IN CAVITY 9 ON
INCOMING HARNESS FROM OUTSIDE BOX, THE BLUE WIRE GOES TO A RELAY IN THE VPD
CONTROL BOX, HOOKED ALL BACK UP ISSUE GOES AWAY WHEN UPPER CONNECTOR IS
REMOVED (MEANING VOLTAGE DROP OFF GREEN J1939 HIGH SIDE FROM 11.8 V TO 0.0
ADVISED TIM AT FONTAINE BY EMAIL AND TEXT, ACTIVE FAULT 523522 FMI 14 J1939 CAN BUS
PERFORMANCE,
12pm CALLED NATHAN AT MARMON, WENT BACK OVER THE BASICS, FOUND NO GROUND TO
PIN 1AT THRU POINT OF VPD BOX, ADVISED TIM AT FONTAINE. WENT THRU GROUND
CONNECTIONS, NO CHANGE, ADVISED TIM, REACHED OUT TO ELGIN SWEEPER TECH
SUPPORT NAD JEFF PETERS FOR HELP, IF THEY HAVE A PIN AND A DEUTCH TOOL WE CAN
USE TO FIX THE ISSUE. WIATING ON RETURN EMAIL.
3/31 RAN EXTERNAL GROUND FROM BATTERY TO GROUND LUG ON VPD FUSE BLOCK, ROAD
TEST UNIT UNIT SHIFTS CORRECTLY AND RUNS AS NEEDED, NOW CAN USE BODAS
DIAGNOSTIC TOOL TO SEE VPD, WHEN GROUND IS SUPPLIED TO THE VPD MODULE THE 11.2 V
WENT AWAY AND FAULT IS INACTIVE.
THE ORIGINAL CABINET SUPPLIED HAD A DATABUS CRIMP THAT FAILED, FONTAINE
MODIFICATION SUPPLIED US WITH A SECOND CABINET, IT HAD A BAD GROUND CRIMP.
REASON | POSTED THIS MAKE SURE NOTHING (MODULE WISE) ON THE DATABUS HAS
ISSUES, THE MODULE FOR THE VPD IS TIED INTO THE 250 K DATABUS, BUT THE MODULE
WAS BACK FEEDING DUE TO NO GROUND.
PLEASE FOLKS KEEP IN MIND THERE IS NO PUBLISHED T SHOOTING BY DAIMLER(THIS IS A
PRODUCT FROM MARMON HARRINGTON), AND THERE IS NO PUBLISHED T SHOOTING FROM
MARMON, WE ARE ALL LEARNING AS WE GO WITH THIS PRODUCT.
ANYTHING THAT SAYS A TRACE FILE, WE USED A PROGRAM CALLED PCAN TO MAKE A LOG
FILE SHOWING DATABUS ACTIVITY AND A PROGRAM CALLED BODAS TO HOOK TO THE VPD, IF
YOU RUN INTO ANY ISSUES WITH THIS PRODUCT, PLEASE REACH OUT TO TIM WHEELER AT
FONTAINE MODIFICATION BEFORE YOU DO ANYTING.
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4/28/2021 MARMON HARRINGTON VPD/ELGIN SWEEPER DROP OOUT - DTNA Solutions
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@ ~ Robert_Cadell_J
MacGyver
03-31-2021 12:14 PM
aster
Text
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https://www.marmon-herrington.com/nd-griffin
WANTED TO ADD A LINK TO THE PRODUCT.
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Maste? ' Robert_Cadell_J
Tech
MacGyver
04-02-2021 11:03 AM
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4/28/2021 MARMON HARRINGTON VPD/ELGIN SWEEPER DROP OOUT - DTNA Solutions
The reason | posted this is 2 fold, one another module can screw up the databus, and second
the VPD, which is on Elgins JUS and MVS chassis dont have a display per say, theres a light that
turns red in Elgins console, the water gauge can be used to find the fault codes. With this said
you have to call Marmon for help, and again there were no active faults in any TRUCK module,
but there was shifting issues.
I'll try to get some info and a pic of the gauge and how to use it.
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04-02-2021 12:09 PM
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