NHTSA ID Number: 10130328
Manufacturer Communication Number: sb54289
TSB/Document Date: 2018-03-13
Summary
Production of the ICU2M instrumentation control unit has been discontinued. The ICU4M should be installed if the ICU2M needs replacement.
54-289
ICU2M to ICU4M Conversion
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
> Century Class Conventional
> Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
Freightliner
Service Bulletin
Description of Revisions: This bulletin replaces the version dated
October 2015. Part numbers are revised, and speedometer
ordering is detailed in Table 4.
General Information
Production of the ICU2M instrumentation control unit has been discontinued. The ICU4M should be installed if
the ICU2M needs replacement.
Several circuits need to be relocated before the ICU4M can be installed. Refer to the guidelines in this bulletin
to relocate the circuits, then refer to the applicable workshop manual for instructions on removing and replacing
the ICU. See Table 1.
Vehicle
Century Class
ICU Replacement Procedures
Procedure
Section
Section 54.19, Subject 100
ICU2M Removal
ICU4M Installation
Section 54.25, Subject 100
Table 1, ICU Replacement Procedures
NOTE: None of the original ICU2M parts, except mounting screws, will be reused. All replacement
part numbers should be supplied in the tables below.
ICU2M to ICU4M Conversion
1. Disconnect the batteries.
NOTE: The keypad for the ICU2M is not used on the ICU4M. The keypad will remain in place after
the conversion, but will not be operational.
2. Remove the ICU2M. Refer to the applicable workshop manual for instructions.
NOTE: Refer to 23-13143 for a description of connectors used on the ICU2M.
3. Remove circuit 442B from cavity A2, and seal the circuit.
4. Remove circuit GND C from cavity D10, and seal the circuit.
NOTE: On the Argosy only, optional telltale 24-01347-009 must be moved to slot 5 of the new cluster.
5. Install the ICU4M. Refer to the applicable workshop manual for instructions.
NOTE: The top row of indicating lamps in the ICU are optional lens locations and must be replaced
with new ones for the ICU4. Use ShopTech to refer to the engineering ICU warning lamp legend for
ordering replacements. See Table 2.
6. Connect the batteries.
7. Once installation is complete, test the ICU4M to ensure there are no errors in ServiceLink related to parts or
parameters not matching the new ICU.
8. When the operation of the ICU4M is verified, add a global annotation in PartsPro per Parts Technical
Bulletin 00-009.
Freightliner Service Bulletin, May 2016
Page 1
54-289
ICU2M to ICU4M Conversion
Freightliner
Service Bulletin
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
> Century Class Conventional
> Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
ICU Warning Lamp Legend
ICU2
ICU4
24-00585
24-01347
Table 2, ICU Warning Lamp Legend
Parts
ICU2M to ICU4M Conversion
ICU2M (732)
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-019
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
A22-48313-020
or -022
Page 2
ICU2M
English/Metric
(810)
MPH/KPH
KPH/MPH
KPH Only
MPH/KPH
KPH/MPH
KPH Only
MPH/KPH
KPH/MPH
KPH Only
MPH/KPH
KPH/MPH
KPH Only
Parts
ICU4M Conversion Parts
EPA (99C)
RSA (49B)
Light Bar
Top Trim
Gauge Panel*
PRE EPA2007
PRE EPA2007
PRE EPA2007
PRE EPA2007
PRE EPA2007
PRE EPA2007
EPA2007
EPA2007
EPA2007
EPA2007
EPA2007
EPA2007
No
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
A22-61097-300
A22-61097-320
A22-61097-330
A22-61097-400
A22-61097-420
A22-61097-430
A22-61097-100
A22-61097-120
A22-61097-130
A22-61097-200
A22-61097-220
A22-61097-230
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
A18-49740-001
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
22-59420-xxx
MPH/KPH
PRE EPA2007
No
A22-61097-300
A18-49740-000
22-59223-xxx
KPH/MPH
PRE EPA2007
No
A22-61097-320
A18-49740-000
22-59223-xxx
KPH Only
PRE EPA2007
No
A22-61097-330
A18-49740-000
22-59223-xxx
MPH/KPH
PRE EPA2007
Yes
A22-61097-400
A18-49740-000
22-59223-xxx
KPH/MPH
PRE EPA2007
Yes
A22-61097-420
A18-49740-000
22-59223-xxx
KPH Only
PRE EPA2007
Yes
A22-61097-430
A18-49740-000
22-59223-xxx
MPH/KPH
EPA2007
No
A22-61097-100
A18-49740-000
22-59223-xxx
KPH/MPH
EPA2007
No
A22-61097-120
A18-49740-000
22-59223-xxx
KPH Only
EPA2007
No
A22-61097-130
A18-49740-000
22-59223-xxx
MPH/KPH
EPA2007
Yes
A22-61097-200
A18-49740-000
22-59223-xxx
KPH/MPH
EPA2007
Yes
A22-61097-220
A18-49740-000
22-59223-xxx
Freightliner Service Bulletin, May 2016
54-289
ICU2M to ICU4M Conversion
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
ICU2M (732)
A22-48313-020
or -022
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
A22-48313-021
> Century Class Conventional
> Argosy COE
Cargo
Columbia
122SD and Coronado
Business Class M2
Cascadia
108SD/114SD
Freightliner
Service Bulletin
ICU2M to ICU4M Conversion
ICU2M Parts
ICU4M Conversion Parts
English/Metric
EPA (99C)
RSA (49B)
Light Bar
Top Trim
Gauge Panel*
(810)
KPH Only
EPA2007
Yes
A22-61097-230
A18-49740-000
22-59223-xxx
MPH/KPH
KPH/MPH
KPH Only
MPH/KPH
KPH/MPH
KPH Only
MPH/KPH
KPH/MPH
KPH Only
MPH/KPH
KPH/MPH
KPH Only
PRE EPA2007
PRE EPA2007
PRE EPA2007
PRE EPA2007
PRE EPA2007
PRE EPA2007
EPA2007
EPA2007
EPA2007
EPA2007
EPA2007
EPA2007
No
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
A22-61097-330
A22-61097-330
A22-61097-330
A22-61097-430
A22-61097-430
A22-61097-430
A22-61097-130
A22-61097-130
N/A
A22-61097-230
A22-61097-230
N/A
A18-49741-000
A18-49741-000
A18-49741-000
A18-49741-000
A18-49741-000
A18-49741-000
A18-49741-000
A18-49741-000
N/A
A18-49741-000
A18-49741-000
N/A
22-59449-xxx
22-60373-xxx
22-63524-xxx
22-59449-xxx
22-60373-xxx
22-63524-xxx
22-59449-xxx
22-60373-xxx
N/A
22-59449-xxx
22-60373-xxx
N/A
* Refer to "Parts Bulletin 54-053 - Driver’s Instrument Panel" for information on ordering instrument panels with pre-punched gauge panels.
Table 3, ICU2M to ICU4M Conversion
NOTE: A mounting screw P/N 23-11345-707 is required to mount the panel to the top trim.
Feature Modifications
NOTE: A06-41592-007 is 7 inches (17 cm) long. If longer lengths are required use one of the
following: A06-41592-020 = 20 inches (50cm) or A06-41592-094 = 94 inches (246 cm).
ICU2M (838)
22-46507-000
22-46507-001
22-46507-002
22-46507-010
22-46507-011
22-46507-012
Speedometer Conversion
ICU2M
ICU4M Conversion
Trim Ring
US/Metric
ICU4M
Jumper
Black
MPH/KPH
A22-59203-001 A06-41592-007
Black
KPH/MPH
A22-59203-021 A06-41592-007
Black
KPH Only
A22-59203-031 A06-41592-007
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TSB/Document ID: sb54289
Replacement Service Bulletin Number:
MFR Communication Date: 2016-05-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT
MFR Component System:
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