NHTSA ID Number: 10179865
Manufacturer Communication Number: SB54-329
TSB/Document Date: 2020-09-16
Summary
Updated Service Bulletin for Electrical Wall Chart and VPDM Cover on New Cascadia with Detroit Assurance 5.0 and Multi-Purpose Camera 2. This bulletin replaces the version dated 2/26/2020. Information about Service Bulletin 54-336 has been added.
Electrical Wall Chart and VPDM Cover Labeling
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
54-329
Freightliner
Service Bulletin
Description of Revisions: This bulletin replaces the version dated
2/26/2020. Information about Service Bulletin 54-336 has been
added.
Fuse Location and Labeling for the MPC2 and Lane Guidance
Systems
If equipped with Detroit Assurance 5.0, New Cascadia vehicles built from September 9, 2019 through August
23, 2020, come equipped with a multi-purpose camera 2 (MPC2) wired into an LVD power supply, fuse 14
(F14). This created an active fault code when house loads were disconnected.
In addition, the vehicle power distribution module (VPDM) inside cover illustration in these vehicles had the
following generic description for fuse 14: F14-POWER FEED OUTPUT 5, BAT.1 It might also be labeled: F14EXP FUSE 7/LANE DEP/GUIDANCE, BAT.2
Explanation of the active fault code and instructions for moving the MPC2 power supply to fuse 35 (F35) are
contained in Service Bulletin 54-336. That work includes installing a new VPDM cover. If this work has been
done on the vehicle, this bulletin does not apply.
In addition, fuse 63 (F63) is not labeled as optional on this version of the VPDM inside cover illustration. Fuse
63 is used for lane guidance systems other than Detroit Assurance 5.0. These descriptions have been causing
confusion when troubleshooting Detroit Assurance 5.0 Lane Detection Warning fault codes.
To clarify fuse uses and locations related to collision mitigation systems, module 73F, see Table 1 and Table 2.
Collision Mitigation System Fuse Locations
Collision Mitigation Systems
BAT FUSE Position
MPC2 (Detroit Assurance 5.0) built prior to August 25, 2020
F14
MPC2 (Detroit Assurance 5.0) built after August 24, 2020
F35
Bendix LDW only
F65
Bendix LDW plus Safety Direct
F65
Wabco Pre-Wire
—
MPC1 (Detroit Assurance 4.0 and earlier)
—
IGN FUSE Position
—
—
F63
F63
F63
F63
Table 1, Collision Mitigation System Fuse Locations
Fuse/Circuit Breaker Ratings by Location for Module 73F Requirements
Fuse Position
Location
Rating
F14
J5-D2
10A
F35
J5-D12
10A
F63
J7-F5
10A
F65
J7-B2
5A
Table 2, Fuse/Circuit Breaker Ratings by Location for Module 73F Requirements
For general reference purposes, see the color coded reproduction of the September 9, 2019 to August 23, 2020
VPDM inside cover illustration, shown in Fig. 1.
1 If the vehicle is not equipped with Detroit Assurance 5.0, this fuse may be used for other purposes.
2 The phrase "EXP FUSE 7" as part of the name for F14 might be confusing. Technicians are advised to ignore this part of the name.
Freightliner Service Bulletin, 09/09/2020
Page 1
54-329
Electrical Wall Chart and VPDM Cover Labeling
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy
Cargo
Columbia
122SD and Coronado
3A
5A
20A
R6
30A
F11
F69
F70
F16
F69
F70
F56
F68
F57
F60
F58
F35
F54
F66
F39
R13
F25
F76
F20
F77
F1
F4
R9
F37
F32
F71
F3
F61
F31
F34
F2
F61
F21
R22
F5
R11
R10
A
F22
R1
B
F33
F53
F29
R12
F23
F52
B
F28
R20
F40
R16
F27
F40
F8
F9
F16
A
F75
25A
A
B
R23
F73
15A
F6
F7
F10
R4
10A
50A
F30
30A
Business Class M2
Cascadia
108SD/114SD
> New Cascadia
REPLACEMENT FUSES
REPLACEMENT FUSES
F38
Freightliner
Service Bulletin
R14
R5
F47
F43
F49
F24
R24
F48
F17
F17
F51
F50
F18
F18
F74
F67
R21
F46
R8
F65
R17
R7
F64
F19
F26
B
F19
F15
F14
F13
R3
A
F12
R15
R2
F63
F81
F45
F44
R19
F41
F78
R18
R25
F79
08/27/2020
f546278d
Fig. 1, Fuse Locations for F14, F35, F63, F65 on VPDM Inside Cover Illustration
Warranty
This is an informational bulletin only. Warranty does not apply.
Page 2
Freightliner Service Bulletin, 09/09/2020
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TSB/Document ID: SB54-329
Replacement Service Bulletin Number:
MFR Communication Date: 2020-09-10
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
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