NHTSA ID Number: 10183321
Manufacturer Communication Number: CALFTL54-013
TSB/Document Date: 2020-12-08
Summary
Customer Advisory Letter for Updating the RP170 Customer Access Connector and Adding Overlays for J1939. The Electrical Guide for M2106, M2112, 108SD, 114SD Body Builder Reference Guide Revision: D June 2019 incorrectly displays pins 2 and 3 of the customer access 8 pin connector on table 5 as Hot with crank, Ignition controlled battery (+) thru Disconnect switch (If disconnect switch specified).
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
Subject: Updating the RP170 Customer Access Connector and Adding Overlays for
J1939
Models Affected: Freightliner M2 106, M2 113, 108SD, and 114SD
vehicles with datacode 33U-012 built before November 10, 2020.
Our records indicate that you are the owner of certain vehicles, and therefore DTNA has decided to share the
following documentation with you.
Please see the attached communication in this email. We hope you find this information helpful.
Page 1
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
Work Instructions
Subject: Updating the RP170 Customer Access Connector and Adding Overlays for
J1939
Models Affected: Freightliner M2 106, M2 113, 108SD, and 114SD
vehicles with data code 33U-012 built before November 10, 2020.
Work Instructions on Updating the RP170 Customer Access
Connector1
General Information
The Electrical Guide for M2106, M2112, 108SD, 114SD Body Builder Reference Guide Revision: D June 2019
incorrectly displays pins 2 and 3 of the customer access 8 pin connector on table 5 as “Hot with crank, Ignition
controlled battery (+) thru Disconnect switch (If disconnect switch specified).” See Fig. 1.
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Fig. 1, Pin Assignment and Circuit Definition 9-Contact Connector (Power and Ground)
Vehicles built with data code 33U-012 prior to November 10, 2020 will not have live power on pins 2 and 3 of
the 8 pin connector while the key is in the crank position.
To correct for this error, 12 volts of constant battery power from the Powertrain Power Distribution Module
(PTPDM) 70 amp ignition relay will replace the ignition supplied power from splice pack 12 (SP12A) in the dash
harness.
Schematics referenced for these work instructions include G66-07101-001, G66-09354-001, and harness print
A06-71941-000. BOM content is located in 33U, 283, and 320. Related installation prints are available in BOM
content.
1 Content for the RP170 customer access connector is located in module 33U of Parts Pro.
Page 2
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
1.
Note that pins B and C of the 8 pin connector (See Fig. 2 from schematic G66-07101-001) are supplied
with circuit 52F. Also note that pins B and C of the schematic are the same as pins 2 and 3 of the 8 pin
connector noted in Fig. 1. These two locations will be updated to include constant uninterrupted 12 volt
during cranking.
FLOOR STANDALONE
(MOD 287) (MOD 33U)
A3
VEH_INTFC_FLR_O_CUST_5A
23-14208-004
VEH_INTFC_CUST_H_FLR_5A
23-14208-005
E
E
120B # 1322 (DKBL) 12/3 GXL
B
B
52F # 1106 (PK) 12/3 GXL
F
F
GND # 1204 (BK) 12/3 GXL
G
G
GND # 1204 (BK) 12/3 GXL
H
H
GND # 1204 (BK) 12/3 GXL
A
A
14U # 1105 (R) 12/3 GXL
C
C
52F # 1106 (PK) 12/3 GXL
D
14U # 1105 (R) 12/3 GXL
SEE SHEET 2
D
8
8
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f547379
Fig. 2, Location of Pins B and C
2.
Note that circuit 14C originates from the main dash harness A06-71941-001 SP12A and routes to the 14
pin connector DASH_H_FLR_1A. See Fig. 3 from schematic G66-07101-001.
DASH FLOOR
(MOD 320) (MOD 287)
IGNITION SPLICE PACK
REF MOD 320
DASH_H_SP12A_PWR_IGN
23-13141-018
14C # 1106 (PK) 18/.8 TXL
DASH_H_FLR_1A
23-13153-013
14C # 1106 (PK) 18/.8 TXL
12
FLR_H_DASH_1A
23-13153-012
14C # 1106 (PK) 18/.8 TXL
10 10
14 14
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Fig. 3, SP12A Circuit 14C to 14 Pin Connector
3.
Note SP12A location. See Fig. 4 showing main cab dash harness A06-71941-001.
Page 3
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
11/03/2020
f547381
Fig. 4, Main Cab Dash Harness A06-71941-001, SP12A
4.
Remove circuit 14C from SP12A and then remove the DASH_H_FLR_1A connector from cavity 10. See
Fig. 5.
DASH FLOOR
(MOD 320) (MOD 287)
IGNITION SPLICE PACK
REF MOD 320
DASH_H_SP12A_PWR_IGN
23-13141-018
14C # 1106 (PK) 18/.8 TXL
DASH_H_FLR_1A
23-13153-013
14C # 1106 (PK) 18/.8 TXL
12
FLR_H_DASH_1A
23-13153-012
14C # 1106 (PK) 18/.8 TXL
10 10
14 14
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f547382
Fig. 5, Remove Circuit 14C from SP12A and the DASH_H_FLR_1A Connector
5.
Add one end of the circuit 14C overlay into PTPDM fuse 4. See Fig. 6.
Page 4
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
11/03/2020
f547383
Fig. 6, Add 14C Overlay to Fuse 4 of the PTPDM
6.
Add the opposite end of the 14C overlay back into the DASH_H_FLR_1A connector cavity 10. See Fig. 7.
DASH FLOOR
(MOD 320) (MOD 287)
DASH_H_FLR_1A
23-13153-013
14C # 1106 (PK) 18/.8 TXL
FLR_H_DASH_1A
23-13153-012
14C # 1106 (PK) 18/.8 TXL
10 10
14 14
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f547384
Fig. 7, Add Circuit 14C Overlay Back Into the
DAHS_H_FLR_1A Connector
7.
See Fig. 8 for a view of the completed modification. Note that circuit 14C now originates from the PTPDM
fuse 4 to supply constant 12 volts during cranking.
Page 5
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
11/03/2020
f547385
Fig. 8, Completed Modification of Circuit 14C Overlay
Work Instructions for Adding Overlays for J1939
General Information
The Electrical Guide for M2106, M2112, 108SD, 114SD Body Builder Reference Guide Revision: D June 2019
incorrectly displays pins 5 and 6 of the customer access 31 pin connector as supplying variations of J1939
availability in tables 4 and 7. See Fig. 9 and Fig. 10. Vehicles built with data code 33U-012 prior to 11/10/20
will not have J1939 availability in either a 250K or 500K baud rate on pins 5 and 6 of the 31 pin connector.
Page 6
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
11/03/2020
f547386
Fig. 9, Pin Assignment and Power Definition for 31-Contact Connector (Powertrain)
Page 7
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
11/03/2020
f547387
Fig. 10, Engine Pin Functionality by Model
To correct for this, two overlays will be added to the vehicle.
Schematics referenced for these work instructions include G66-07101-004 and G66-09942-001. BOM content is
located in 33U and 160. Related installation prints are available in BOM content.
1.
Remove harness A66-10959-007 from the 6 pin connector VEH_INTFC_FLR_O_DASH_4A and from the
31 pin connector VEH_INTFC_O_CUST_6A. See Fig. 11 from schematic G66-07101-004.
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Fig. 11, Remove Harness A66-10959-007
2.
Remove harness A66-08440-000 from the 6 pin VEH_INTFC_DASH_O_FLR_4A connector. See Fig. 12
from schematic G66-07101-004.
Page 8
Daimler Trucks
North America LLC
Customer Advisory Letter
11/4/2020
CAL FTL 54-013
11/03/2020
f547389
Fig. 12, Remove Harness A66-08440-000 from the
VEH_INTFC_DASH_O_FLR_4A Connector
3.
If not present, add harness A66-10960-"L" ("L" designates the length of the harness: -007 for day cab,
-032 for extended cab, -060 for crew cab) in FLR_H_UCAB_1A and VEH_INTFC_FLR_O_CUST_6A between pins 54/55 and 5/6. See Fig. 13 from schematic G66-07101-004.
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f547390
Fig. 13, If Not Present, Add Harness A66-10960-"L"
4.
If not present, add harness A66-07820-000 in VEH_INTFC_UCAB_O_CHAS_F_1A UCAB_H_FLR_1A between pins 8/9 and 54/55. See Fig. 14 from schematic G66-07101-004 and G66-09942-000.
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f547391
Fig. 14, If Not Present, Add Harness A66-07820-000.
Page 9
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TSB/Document ID: CALFTL54-013
Replacement Service Bulletin Number:
MFR Communication Date: 2020-11-04
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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