Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

Subject: Freightliner Cascadia and Western
Star 47X/49X Fan Controller
Models Affected: Specific model year 2022 Freightliner Cascadia and Western
Star 47X/49X vehicles, equipped with Cummins engines, manufactured from
April 20, 2021, through October 6, 2021.

General Information
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Trucks Division and wholly owned
subsidiary, Western Star Truck Sales, Inc., is initiating Field Service Campaign SF655 A-E to modify the
vehicles mentioned above.
The fan controller software is allowing over-pressurization of the AC system to occur.
The fan controller assembly will be replaced.
There are approximately 192 vehicles involved in this campaign.
Additional Repairs
Dealers must complete all outstanding Recall and Field Service campaigns prior to the sale or delivery of a
vehicle. A Dealer will be liable for any progressive damage that results from its failure to complete campaigns
before sale or delivery of a vehicle.
Owners may be liable for any progressive damage that results from failure to complete campaigns within a
reasonable time after receiving notification.
Please contact Warranty Campaigns for consideration of additional charges prior to performing the repair.

Work Instructions
Please refer to the attached work instructions. Prior to performing the campaign, check the vehicle for a
completion sticker (Form WAR261).

Replacement Parts
Replacement parts are now available and can be obtained by ordering the part number(s) listed below from
your facing Parts Distribution Center.
If our records show your dealership has ordered any vehicle(s) involved in campaign number SF655, a list of
the customers and vehicle identification numbers will be available in OWL, found on the DTNA Portal. Please
refer to this list when ordering parts for this campaign.
Table 1 - Replacement Parts for SF655 (Must use REV level specified below. Refer to the label on part.)
Campaign
Number

Part Number

REV Level
(On Part
Label)

Part Description

Qty.

SF655 A,B
SF655 C,D
SF655 E
ALL GROUPS

KYS 010034364
KYS 010034403
KYS 010031425
WAR261

REV C
REV D
REV C
N/A

FAN CNTRLR-CMNS HD,U278,XD11
FAN CNTRLR-CMNS HD,U278,XD11
FAN CONTROLLER-CMNS HD,E-VISC
BLANK COMPLETION STICKER

1
1
1
1

Table 1

Removed Parts
U.S. and Canadian Dealers, please follow Warranty Failed Parts Tracking shipping instructions for the
disposition of all removed parts. Export distributors, please destroy removed parts unless otherwise advised.
Page 1

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

Labor Allowance
Table 2 - Labor Allowance
Campaign
Number

Procedure

Time Allowed
(hours)

SRT Code

Corrective Action

SF655 A-E

Replace Fan Controller

0.3

996-F131A

12-Repair Recall/Campaign

Table 2

IMPORTANT - Before Beginning Work:
• Check OWL to ensure the vehicle is involved and the campaign has not previously been completed.
• Check the vehicle for a completion sticker.
IMPORTANT - After Repair is Complete:
• Attach a gray completion sticker (Form WAR261) to the base completion label (Form WAR259). If the vehicle does not already have a base completion label, clean a spot on the appropriate location of the vehicle, and attach a base completion label, prior to installing the completion sticker.

Claims for Credit
You will be reimbursed for your parts, labor, and handling (landed cost for Export Distributors) by submitting a
claim. Please reference the following information in OWL:
• All claims must be submitted within 30 days of the repair date.
• Claim type is Field Service Campaign.
• In the Campaign field, enter the campaign number and population/group code (SF655-A, SF655-B, etc.).
• In the Primary Failed Part field, enter 25-SF655-000.
• In the Parts section, enter the appropriate part number(s) as shown in the Replacement Parts Table.
• In the Labor section, enter the appropriate SRT from the Labor Allowance Table. Administrative time will be
included automatically as SRT 939-6010A for 0.3 hours.
• The VMRS Component Code is F99-999-005, and the Cause Code is A1 - Campaign.
• This Field Service Campaign will terminate on July 31, 2024. Dealers will be notified of any changes to the
termination date via an Important Campaign Information Letter (ICI) posted on the DTNA Portal.
Excess Inventory: U.S. and Canadian dealers, following the conclusion of the campaign, within 90 days from
the termination date, excess inventory in resalable condition may be returned to the appropriate PDC. U.S.
dealers, submit a PAR to request return to the Memphis PDC. Canadian dealers, return inventory to your facing
PDC. Export Distributors, excess inventory is not returnable.
For Support: Contact the Warranty Campaigns Department via the Warranty Support Center (WSC) app
located on the DTNA Portal, or contact the Customer Assistance Center at (800) 385-4357. Export distributors,
submit a WSC ticket or contact your International Service Manager.

Page 2

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

Copy of Notice to Owners
Subject: Freightliner Cascadia and Western
Star 47X/49X Fan Controller
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Trucks division, and wholly owned subsidiary,
Western Star Truck Sales, Inc., is initiating Field Service Campaign SF655 A-E to modify specific model year 2022
Freightliner Cascadia and Western Star 47X/49X vehicles, equipped with Cummins engines, manufactured April 20,
2021, through October 6, 2021.
The fan controller software is allowing over-pressurization of the AC system to occur.
The fan controller assembly will be replaced.
Please contact an authorized DTNA dealer to arrange to have the campaign performed and to ensure that parts are
available at the dealership. The campaign will take approximately one half hour and will be performed at no charge
to you. To locate an authorized dealer, search online at NorthAmerica.DaimlerTruck.com/contact-us/. Scroll down to
“Locate a Dealer,” and select the appropriate brand.
This Field Service Campaign will terminate on July 31, 2024. Please make sure the campaign is completed prior
to this date. Work completed after this date will be done at the customer’s expense.
As stated in the terms of your express limited warranty, DTNA will not pay for any damage caused by failure to
properly maintain your vehicle. DTNA considers the work necessary under this campaign to be proper maintenance
and will, therefore, not pay for any damage to your vehicle caused by your failure to have the repairs that are the
subject of this campaign performed in a reasonable time.
Contact the Warranty Campaigns Department at (800) 547-0712, e-mail address
[email protected], or the Customer Assistance Center at (800) 385-4357, if you have
any questions or need additional information.

WARRANTY CAMPAIGNS DEPARTMENT
Enclosure

Page 3

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

Work Instructions
Subject: Freightliner Cascadia and Western
Star 47X/49X Fan Controller
Models Affected: Specific model year 2022 Freightliner Cascadia and
Western Star 47X/49X vehicles, equipped with Cummins engines,
manufactured from April 20, 2021, through October 6, 2021.

SF655 A & C
(SF655 A & C, Kysor Fan Control Module Located on Left Side of Rocker Cover; See Below.)
(SF655 B & D, Kysor Fan Control Module Located on Top of Rocker Cover; See Page 6.)
(SF655 E, Kysor Fan Control Module Located in Front of Rocker Cover; See Page 8.)

Kysor Fan Control Module Replacement (SF655 A & C)
1.

Check the base label (Form WAR259) for a completion sticker for SF655 (Form WAR261) indicating this
work has been done. The base label is usually located on the passenger door about 12 inches (30 cm)
below the door latch. If a sticker is present, no work is needed. If there is no sticker, proceed with the next
step.

2.

Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.

3.

Locate the Kysor fan control module on the mounting bracket along the left-hand side of the engine rocker
cover toward the front of the engine. See Fig. 1.

04/19/2022

f547809

Fig. 1, Kysor Fan Control Module Location
Page 4

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

4.

Disconnect the Kysor fan control module electrical connector.

5.

Remove the two fasteners that attach the Kysor fan control module to the mounting bracket, then remove
the fan control module from the vehicle, and discard it. See Fig. 2.

2

1

4

3

04/20/2022

1.
2.
3.
4.

f547810

Kysor Fan Control Module
Mounting Bolts
Mounting Nuts
Mounting Bracket
Fig. 2, Kysor Fan Control Module Removal

IMPORTANT: Before installing, verify the part number and revision level of the fan control module are correct.
For more information, see Replacement Parts, on page 1.
6.

Position the new Kysor fan control module on the mounting bracket, then install the two fasteners that
attach the fan control module to the mounting bracket. Tighten the fasteners 60 to 72 lbf·in (678 to 813 N-cm).

7.

Connect the electrical connector to the fan control module.

8.

Clean a spot on the base label (Form WAR259) and attach a campaign completion sticker for SF655
(Form WAR261), indicating this work has been completed.

Page 5

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

SF655 B & D
Kysor Fan Control Module Replacement (SF655 B & D)
1.

Check the base label (Form WAR259) for a completion sticker for SF655 (Form WAR261) indicating this
work has been done. The base label is usually located on the passenger door about 12 inches (30 cm)
below the door latch. If a sticker is present, no work is needed. If there is no sticker, proceed with the next
step.

2.

Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.

3.

Locate the Kysor fan control module on the mounting bracket under the intake bracket above the rocker
cover. See Fig. 3 and Fig. 4.

04/19/2022

f547811

Fig. 3, Kysor Fan Control Module Location

Page 6

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

04/19/2022

f547812

Fig. 4, Kysor Fan Control Module Assembly

4.

Disconnect the Kysor fan control module electrical connector.

5.

Remove the two fasteners that attach the Kysor fan control module to the mounting bracket, then remove
the fan control module from the vehicle, and discard it. See Fig. 5.

1

2

3

04/22/2022

1.
2.
3.
4.

4

f547813

Kysor Fan Control Module
Mounting Bolts
Mounting Nuts
Mounting Bracket
Fig. 5, Kysor Fan Control Module Removal

Page 7

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

IMPORTANT: Before installing, verify the part number and revision level of the fan control module are correct.
For more information, see Replacement Parts, on page 1.
NOTE: There may not be enough clearance between the module bracket and the intake bracket to remove the
bolts. It is only necessary to remove the nuts from the bolts to replace the module.
6.

Position the new Kysor fan control module on the mounting bracket, then install the two fasteners that
attach the fan control module to the mounting bracket. Tighten the fasteners 60 to 72 lbf·in (678 to 813 N-cm).

7.

Connect the electrical connector to the fan control module.

8.

Clean a spot on the base label (Form WAR259) and attach a campaign completion sticker for SF655
(Form WAR261), indicating this work has been completed.

SF655 E
Kysor Fan Control Module Replacement (SF655 E)
1.

Check the base label (Form WAR259) for a completion sticker for SF655 (Form WAR261) indicating this
work has been done. The base label is usually located on the passenger door about 12 inches (30 cm)
below the door latch. If a sticker is present, no work is needed. If there is no sticker, proceed with the next
step.

2.

Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.

3.

Locate the Kysor fan control module on the mounting bracket on the front of the engine near the top.
See Fig.
. 6

04/19/2022

f547814

Fig. 6, Kysor Fan Control Module Location

Page 8

Daimler Truck
North America LLC

Field Service Campaign

July 2023
SF655 A-E

4.

Disconnect the Kysor fan control module electrical connector.

5.

Remove the two fasteners that attach the Kysor fan control module to the air cleaner mounting bracket,
then remove the fan control module from the vehicle, and discard it. See Fig. 7.

3

2

1

4

04/22/2022

1.
2.
3.
4.

f547815

Kysor Fan Control Module
Mounting Bolts
Mounting Nuts
Air Cleaner Mounting Bracket
Fig. 7, Kysor Fan Control Module Removal

IMPORTANT: Before installing, verify the part number and revision level of the fan control module are correct.
For more information, see Replacement Parts, on page 1.
6.

Position the new Kysor fan control module on the air cleaner mounting bracket, then install the two fasteners that attach the fan control module to the air cleaner mounting bracket. Tighten the fasteners 60 to 72
lbf·in (678 to 813 N·cm).

7.

Connect the electrical connector to the fan control module.

8.

Clean a spot on the base label (Form WAR259) and attach a campaign completion sticker for SF655
(Form WAR261), indicating this work has been completed.

Page 9