NHTSA ID Number: 10179804
Manufacturer Communication Number: SB54-336
TSB/Document Date: 2020-09-17
Summary
Freightliner
Service Bulletin for Rewiring the MPC2 Camera Fuse. The multipurpose camera 2 (MPC2) power is supplied via fuse 14 (F14) in New Cascadia vehicles built before August 24, 2020. With this configuration, fault code 232/524127/9 - "Lost Communication to MPC" becomes active during low voltage disconnect (LVD) situations when load shedding is required to maintain critical systems. These instructions provide the procedure for moving the MPC2 power supply from fuse 14 (F14) to fuse 35 (F35). Moving the MPC2 power supply requires the installation of a new etched vehicle power distribution module (VPDM) cover to document the new MPC2 location.
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TSB/Document ID: SB54-336
Replacement Service Bulletin Number:
MFR Communication Date: 2020-09-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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54-336
Rewiring the MPC2 Camera Fuse
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
Freightliner
Service Bulletin
General Information
The multipurpose camera 2 (MPC2) power is supplied via fuse 14 (F14) in New Cascadia vehicles built before
August 24, 2020. With this configuration, fault code 232/524127/9 - "Lost Communication to MPC" becomes
active during low voltage disconnect (LVD) situations when load shedding is required to maintain critical
systems.
These instructions provide the procedure for moving the MPC2 power supply from fuse 14 (F14) to fuse 35
(F35). Moving the MPC2 power supply requires the installation of a new etched vehicle power distribution
module (VPDM) cover to document the new MPC2 location.
In vehicles built after August 24, 2020, the MPC2 is suppled by constant battery power from Fuse 35 and this
etched cover is already installed.
Parts
Parts Table
Part Number
66-22194-000
Description
VPDM Cover
Table 1, Parts Table
Work Instructions
1. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
2. Disconnect the batteries.
3. Remove the electrical bay cover by pulling the corner of the lower left panel loose. See Fig. 1. Pull the
remaining clips loose from the dash and remove the cover.
For instructions, see Section 60.06, Subject 100 in the New Cascadia Workshop Manual.
4. Remove the seven screws that attach the right-hand lower dash cover to the dash and electrical bay
housing, then pull the clips loose and remove the cover. See Fig. 2.
Freightliner Service Bulletin, 09/15/2020
Page 1
54-336
Freightliner
Service Bulletin
Rewiring the MPC2 Camera Fuse
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
3
1
4
5
2
A
08/15/2016
f602593
6
Fig. 1, Electrical Bay Cover Handhold
7
08/16/2016
f602606
A. For removal, take out the screws in reverse order then
remove the locator clip. For installation, snap the locator
clip in place first, then install the screws in the sequence
shown.
Fig. 2, RH Lower Dash Cover
5. Remove the current VPDM cover and dispose of it.
6. Loosen the VPDM mounting screws from the outer corners of the front of the VPDM, and release the
VPDM from the mounting hooks.
NOTICE
Make sure that the cab floor is clear of debris and tools. If the VPDM is lowered onto debris, especially
metal objects, it could permanently damage the VPDM.
7. Gently lower the VPDM to the cab floor and remove the back cover. For instructions, see Section 54.08,
Subject 100 in the New Cascadia Workshop Manual.
8. Locate and remove the VPDM J5 connector. First loosen the captured screw at the front of the VPDM (see
Fig. 3), then remove the J5 connector from the back of the VPDM. See Fig. 4.
Page 2
Freightliner Service Bulletin, 09/15/2020
54-336
Rewiring the MPC2 Camera Fuse
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
Freightliner
Service Bulletin
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
1
09/04/2020
f546497a
1. Captured Screw
1
Fig. 3, Captured Screw, Front of VPDM
01/31/2020
f547100
1. Captured Screw
Fig. 4, J5 Connector Removed from Back of VPDM
9. Remove the green terminal locks from the J5 connector. See Fig. 5.
Freightliner Service Bulletin, 09/15/2020
Page 3
54-336
Freightliner
Service Bulletin
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
1
2
09/02/2020
1. D12 Wire
f547318
2. D2 Wire
Fig. 5, Terminal Locks Removed from the J5 Connector
10. Locate both cavity D2 and cavity D12 in the J5 connector.
11. Lift up the internal D2 locking mechanism and remove the D2 pin.
12. Cut the D2 terminal off, leaving about 1 inch (25 mm) of wire extending from the terminal.
13. Strip the wire without the D2 pin 3/8 inch (10 mm).
14. If cavity D12 has a wire installed, go to step 15. If cavity D12 is empty, do the following.
14.1
Cut a 4 inch (10 cm) length of wire of equal size to the D2 wire. Strip one end 3/8 inch (10 mm),
and splice it onto the wire removed from cavity D2 using the appropriate sized Phillips STA-DRY®
Crimp and Solder connector. Using a heat gun, carefully apply heat to melt the solder and shrink the
connector tube.
14.2
Strip the other end of the 4 inch wire 3/8 inch (10 mm) and strip the 1 inch (25 mm) terminal wire;
splice the 4 inch wire onto the terminal end removed from D2 using the appropriate sized Phillips
STA-DRY® Crimp and Solder connector. Using a heat gun, carefully apply heat to melt the solder
and shrink the connector tube. Insert the terminal into cavity D12.
15. If cavity D12 in the J5 connector has a wire installed, do the following.
15.1
Lift up the internal D12 locking mechanism and remove the D12 pin.
15.2
Cut the D12 terminal off, cutting the wire to be an even length with the wire removed from the D2
cavity. See Fig. 6.
15.3
Strip the D12 wire 3/8 inch (10 mm).
Page 4
Freightliner Service Bulletin, 09/15/2020
54-336
Rewiring the MPC2 Camera Fuse
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
15.4
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
Freightliner
Service Bulletin
Twist the stripped ends of the D2 and D12 wires together. Install an appropriate size Phillips STADRY Crimp and Solder connector. See Fig. 7.
1
2
1
09/02/2020
f547319
1. D2 wire
2. D12 wire
Fig. 6, Stripped D2 and D12 Wires of Equal Length
09/02/2020
f547320
1. Phillips STA-DRY Crimp and Solder Connector
Fig. 7, D2 and D12 Wires in Connector
15.5
Using the terminal and wire removed from cavity D12, strip the end 3/4 inch (19mm) and fold the
stripped wire in half. Insert the wire into the properly sized Phillips STA-DRY Crimp and Solder
connector, splicing it to the twisted D2 and D12 wires. Crimp and carefully apply heat with a heat
gun to melt the solder and shrink the connector tube. See Fig. 8.
15.6
Insert the terminal into cavity D12. See Fig. 9.
Freightliner Service Bulletin, 09/15/2020
Page 5
54-336
Freightliner
Service Bulletin
Rewiring the MPC2 Camera Fuse
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
09/03/2020
1
Fig. 9, Completed Splice
2
09/02/2020
f547322
f547321
1. Wire Being Spliced In
2. Phillips STA-DRY Crimp and Solder connector
Fig. 8, Splicing Wire onto D2 and D12
16. Install the green terminal locks in the J5 connector. See Fig. 5.
17. Install the J5 connector onto the VPDM. Tighten the captured screw on the front of the VPDM. The screw
has a green tab next to it, that extends when the screw is completely tightened. See Fig. 10.
Page 6
Freightliner Service Bulletin, 09/15/2020
54-336
Rewiring the MPC2 Camera Fuse
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
Freightliner
Service Bulletin
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
A
B
08/10/2016
f546495
A. When the green tab is recessed, the connector is
not fully connected to the VPDM.
B. When the green tab is fully extended, the
connector is properly installed.
Fig. 10, Tightening the Captured Screws
18. Install the back cover on the VPDM.
19. Install the VPDM in the dash and tighten the four VPDM screws.
20. Install the new VPDM cover.
21. Install the lower dash cover by snapping the locator tab in place and then the seven screws. See Fig. 2.
22. Install the electrical bay cover.
23. Connect the batteries.
Warranty
This procedure is warrantable only if the described condition exists and the repair is performed within the
applicable base or extended coverage warranty period. If a failure is not found, this procedure is considered
preventive and warranty does not apply.
Normal warranty applies. See Table 2 for OWL VMRS codes and labor allowance information. Enter this service
bulletin number in the Service Bulletin # field.
Primary Failed Part
Dash Harness
OWL VMRS Codes and Labor Allowance
Component
Cause Code SRT Code
Description
Code
MPC2 CAMERA FUSE
034-004-356
19
285-5031A MODIFICATION,REWIRE TO FUSE
F35,PER INSRUCTIONS, (SB54-336)
Time: Hours
0.5
Table 2, OWL VMRS Codes and Labor Allowance
Freightliner Service Bulletin, 09/15/2020
Page 7
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