818B4%6 >%$$9(>% 6%%9
>!6%%(9(%(% "3%%F#(%%%(!%@5
YZ-!%%$3%%>)%!$5((!69 $% $%)>>"#% >%@(5#%>"$)5%#>%$%'()%(!%!9
#$%& ($9)(!+68:-/8%4"#)!))%$$
K
9%%$$%$4 $4!('(!6(!$#)(!$%%!
K
"#'%5()>%%%:/954,
"#$%$&'
A2:6>821:6/3,B4/C429>,:D4/0CD,/04,E/4?B2>>,FGGH,*D5,2GG,123,;5,
?/I3=/2?5?,:D4/0CD,:D5,FGG,A:/45,/4,J//C=5,B=2KH,L3,2??6:6/3M,:D545,245,
/:D54,852:045>,>01D,2>,45>54763C,G24N63C,63,154:263,=/12:6/3>,23?,1/3:4/==63C,
154:263,8031:6/3>,/3,K/04,75D61=5,O=/1N,/4,03=/1N,?//4>M,459/:5,>:24:P,68,6:,6>,
5Q06GG5?,:/,2==/I,1/3:4/=H,

,
R%#STUV$W&%X&Y @/9G=6953:24K,75D61=5,B61N-ZG,[,\5=6754K,>547615,92K,2=>/,;5,2726=2;=5,
0G/3,45Q05>:,:D4/0CD,G24:616G2:63C,?52=54>H,./04,?52=54,I6==,G61N,0G,K/04,
75D61=5,23?,45:043,6:,I6:D,:D5,45G264,1/9G=5:5?H,
,
W$&&Y&$ ./04,?52=54,6>,20:D/46]5?,:/,G4/76?5,2,453:2=,75D61=5,8/4,K/04,G54>/32=,
X&%#&!
:423>G/4:2:6/3,2:,3/,1D24C5,O5^15G:,8/4,805=M,63>042315M,23?,:2^P,ID6=5,K/04,
75D61=5,6>,2:,:D5,?52=54>D6G,8/4,45G264>H,B=52>5,>55,K/04,?52=54,8/4,C06?5=635>,
23?,=696:2:6/3>H,

,
%_$$`&Y L8,K/0,3/,=/3C54,/I3,:D6>,75D61=5,23?,D275,23,2??45>>,8/4,:D5,104453:,/I354M,
a$%X&%#&! G=52>5,8/4I24?,:D6>,=5::54,:/,:D5,35I,/I354H,
./0,4515675?,:D6>,3/:615,;5120>5,/04,451/4?>M,ID61D,245,;2>5?,G469246=K,/3,
>:2:5,45C6>:42:6/3,23?,:6:=5,?2:2M,63?612:5,:D2:,K/0,245,:D5,104453:,/I354H,

,
b$a&% L8,K/0,D275,?688610=:65>,C5::63C,K/04,75D61=5,45G2645?,G4/9G:=K,23?,I6:D/0:,
cdefghijklhemhjcnopecpjqnrfjshelhfmdtkumjvhfwtchjxeoeghfjynfjemmtmpeochz,
_Y&Y!
,/4,1/31543>M,G=52>5,1/3:21:,/04,

~Yb&Y€&%$%Vb&$&Y"b€b'T‚ƒƒT„ ƒT† ‡,23?,/35,/8,

/04,45G45>53:2:675>,I6==,;5,D2GGK,:/,2>>6>:,K/0H,,*D5,@,/G53,/3,

I55N?2K>,84/9,ˆ}‰‰,FŠ,‹,ŒŒ}‰‰,BŠ,23?,/3,A2:04?2K,ˆ}‰‰,FŠ,-,ˆ}‰‰,BŠ,

O+2>:543,*695PH,,**.*\\,0>54>M,G=52>5,1/3:21:,:D5,@:5?,0>63C,:D5,*5=51/9903612:6/3,D,:/,1/3:21:,0>,:D4/0CD,:D5,63:5435:M,/04,2??45>>,6>,
8/4?H1/9>0GG/4:H,

E{++*,)|(+:6/3>,/4,1/31543>M,G=52>5,1/3:21:,/04,

~YRYb$#b&$&YT‚T„T~‘‘’M,1D//>5,)G:6/3,“ŒM,23?,/35,

/8,/04,45G45>53:2:675>,I6==,;5,D2GGK,:/,2>>6>:,K/0H,L8,K/0,I6>D,:/,1/3:21:,0>,

:D4/0CD,:D5,L3:5435:M,/04,2??45>>,6>,8=55:H8/4?H1/9H,

53:2:675>,245,2726=2;=5,Š/3?2K,:D4/0CD,E46?2K},Ž}‰‰,FŠ,‹,ŒŒ}‰‰,BŠ,

23?,A2:04?2K,Ž}‰‰,FŠ,‹,”}‰‰,BŠO+2>:543,*695PH•

Š)*),/4,1/31543>M,G=52>5,
1/3:21:,/04,˜Y&b&Y™%$#&b&$&YT_Y&&
T‚ƒƒTšƒTš‚H,53:2:675>,245,2726=2;=5,›œ,D/04>,2,?2K,
*D23N,K/0,8/4,K/04,2::53:6/3,:/,:D6>,69G/4:23:,92::54H,
@0>:/954,A547615,\676>6/3,
,
13456789

47 4 47 3456

Mobile Service Repair Assessment
Page 1 of 2

Customer Satisfaction Program 23B12
Certain 2021-2022 Mustang Mach E and 2022 Model Year E-Transit
High Voltage Battery Module (HVBM) Replacement
Mobile Service Repair Assessment

Assessment levels have been identified to help determine the ease of performing eligible mobile
service repairs for a Field Service Action (FSA) outside of the dealership service facility.
Dealer Bulletin
Within the Administrative Information Attachment of the dealer bulletin a mobile service repair
assessment level(s) will be provided. These assessment levels have been determined using the
amount of time, equipment and labor identified to perform the intended service action.
Assessment Levels
- Mobile Reprogramming
- Light Mobile Service
- Enhanced Mobile Service
- Advanced Mobile Service
- Wheel and Tire Mobile Service
- Not a Mobile Service Repair
Description of each level that is used to determine the overall assessment.
– Mobile Reprogramming
• Module Programming or similar type services
• Minimum tools maybe required other than an IDS/FDRS setup
• FDRS programming that requires internet connection (wi-fi or mobile hotspot)
• Make sure vehicle has a charge port to ensure battery voltage is maintained during
flashing of the module(s)
• Repairs not greater than 1 hour in length (including time to wait for programming)
Note: The location will need a charging station or wall box to maintain the 12-volt battery.
•
•
•
•

– Light Mobile Service
Interior repair procedures that do not require seat, dash, or headliner removal
Under hood repairs that do not require large component removal
Exterior repairs that do not require large component/panel removal
Repairs may require standard hand tools (Access to a Technician starter kit or similar)

 Copyright 2024 Ford Motor Company

Mobile Service Repair Assessment
Page 2 of 2

Customer Satisfaction Program 23B12
Certain 2021-2022 Mustang Mach E and 2022 Model Year E-Transit
High Voltage Battery Module (HVBM) Replacement

– Enhanced Mobile Service
• A two-person process is required anytime a procedure requires work under the
vehicle
• Brake Inspection and Brake Repair/Replacement
• Limited Suspension Component replacement (no alignment)
• Under Vehicle access for limited repairs (no large component removal)
• Vehicle Check Up - VCU
• Pre-Delivery Inspection - PDI
• Used Car Inspection/Presale Inspection
• May require floor jack, jack stands, and impact tools
Note: Wheel lock may be required.
•
•
•

– Advanced Mobile Service
Fluid Exchange/Oil Change
Light Repairs
Brake Hydraulic Repairs

– Wheel and Tire Mobile Service
• Tire Removal from Wheel
• Tire Balancing
• Tire Repair
Note: Specialized Mobile Service unit and equipment including Tire balancer and Tire
Changer required.
– Not a Mobile Service Repair
• Large component removal
• BEV Battery Replacement
• Requires a vehicle hoist – to complete the repair (more than inspection)
• Required vehicle alignment
• Requires significant vehicle disassembly
• Repairs greater than 2-3 hours
• Any repairs that require M-Time
• Includes a service procedure where the vehicle owner may be distressed about the state
of their vehicle

 Copyright 2024 Ford Motor Company

TECHNICAL INSTRUCTIONS
PAGE 1 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

CERTAIN 2021-2022 MUSTANG MACH-E VEHICLES AND 2022 E-TRANSIT —
HIGH VOLTAGE BATTERY ARRAY REPLACEMENT
SERVICE PROCEDURE OVERVIEW
The vehicles included in this Field Service Action (FSA) have been identified as receiving a High Voltage
Battery Module (HVBM) replacement using a service kit that included an incorrect Thermal Interface
Material (TIM) template. For all vehicles included in this FSA, the type of HVBM that requires replacement
is known and is listed in the supplied VIN tables. For the majority of vehicles, the HVBM numeric location
is also known, and will be listed. For some vehicles, the HVBM numeric location is unknown. In these
cases, the supplied serial numbers that the vehicle was built with will be listed in the tables and will be
used to determine what HVBM requires replacement by process of elimination. All the serial numbers
listed in these tables are factory installed HVBMs and DO NOT require replacement. The HVBM locations
shown in Figure 4, on Page 5, correlate to the HVBM pairs that are listed in the VIN tables. Use the VIN
tables and Figure 4 to determine what HVBM needs to be replaced.
The software update that is applied during this FSA improves the battery functionality at a lower state of
health and improves the Ford Diagnostic and Repair System (FDRS) Battery State of Health function. If
contacting the Special Service Support Center (SSSC) to request High Voltage (HV) battery replacement,
a screen shot/picture of the “Battery State of Health” value must be provided.

CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

TECHNICAL INSTRUCTIONS
PAGE 2 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

SERVICE PROCEDURE
IMPORTANT! The STST Competency 10 certification requirement for USA market only will be

enforced starting with repair orders opened on or after April 1, 2024. FSA repairs

will reject if the repairing technician is not certified in STST Competency 10 FSA.

See EFC14251 for more details.
WARNING: Service of the high voltage system on this vehicle is restricted to qualified personnel.

The required qualifications vary by region. Always observe local laws and legislative

directives regarding electric vehicle service. Failure to follow this instruction may

result in serious personal injury or death.
WARNING: To prevent the risk of high-voltage shock, always follow precisely all warnings and

service instructions, including instructions to depower the system. The high-voltage

system utilizes approximately 450 volts DC, provided through high-voltage cables to

its components and modules. The high-voltage cables and wiring are identified by

orange harness tape or orange wire covering. All high-voltage components are marked

with high-voltage warning labels with a high-voltage symbol. Failure to follow these

instructions may result in serious personal injury or death.
WARNING: Never install the service disconnect plug when a high-voltage service cover is

removed. Always install the cover prior to connecting the service disconnect plug.

The cover prevents inadvertent contact with the high voltage which is present at

several points under the cover. Failure to follow these instructions may result in

serious personal injury or death.
WARNING: Disconnect the12 V battery before servicing the direct current to alternating current

(DC-AC) inverter or alternating current (AC) powerpoint to prevent the risk of high

voltage shock. Failure to follow this instruction may result in serious personal injury.
WARNING: Any fluid or gel found within the high voltage battery tray is to be treated as battery

acid and requires safety glasses and rubber gloves prior to clean up.
IMPORTANT! This Field Service Action (FSA), must be performed by a certified BEV technician.
NOTE: If you do not have the special service tools referenced in the Workshop Manual to perform the
Field Service Action repair, please contact 1-800-ROTUNDA and choose option 3 to place an
order.
NOTE: It is recommended to discharge the vehicle battery down to 25%-30% before beginning any of the

following work. Allow the vehicle to run with all the accessories running if at full charge. If unable

to discharge the battery, each new module can take up to 7 hours each to charge, and up to 14

hours per array.
NOTE: With the high voltage battery removed, if the 12V battery is reconnected the vehicle will remain in

Emergency Mode until the brake is pressed.
NOTE: If you become locked out of the vehicle, there is an access plug within the rear bumper.

CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

TECHNICAL INSTRUCTIONS
PAGE 3 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

NOTE: Make sure that the FDRS release level is at 41.5.2 or higher.
NOTE: If the FDRS cannot communicate with the Battery Energy Control Module (BECM) contact the

technical assistance center (TAC) for diagnostic support.
1. Using FDRS, update the BECM software to the latest level.
2. Using FDRS, select BECM Battery Health, click Download and then select RUN. See Figure 1.

2312F

FIGURE 1
3. Follow the on-screen prompts. Capture and record the FDRS Generated Target Voltage Code. See
Figure 2.
NOTE: This code MUST be recorded before continuing to the next step.

STUD FOR
MISSING NUT
STUD FOR
MISSING NUT
STUD FOR
MISSING NUT
2312G

PLACE COPY HERE

FIGURE 2
CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

PLACE COPY HERE
PLACE COPY HERE

TECHNICAL INSTRUCTIONS
PAGE 4 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

4. On the same screen where the FDRS Generated Target Voltage Code is found, locate and record the
battery healthy percentage shown on the screen. See Figure 3.

2312B

FIGURE 3
5. Is the battery state of health 85% or greater?
Yes - Proceed to Step 6.
No - To place an order for a HV Battery, use the online HVBATT system. Refer to EFC 15213, High
Voltage Battery and Array Order and Return Process Change, for additional details.
NOTE: It is recommended to discharge the vehicle battery down to 25%-30% before beginning any of the

following work. Allow the vehicle to run with all the accessories running if at full charge. If unable

to discharge the battery, each new module can take up to 7 hours each to charge, and up to 14

hours per array.
6. Using the supplied VIN tables and the VIN table descriptions listed below, verify what type of HVBM
requires replacement. More than one type of HVBM may be required. Once the HVBM type has been
STUD
identified, place the order for the HVBM using the online HVBATT system. Refer to EFC 15213,
HighFOR
MISSING
Voltage Battery and Array Order and Return Process Change, for additional details. Proceed to Step 7.NUT
STUD
FOR
NOTE: For VINs in tables 1-3, the type of HVBM required will be listed and should be ordered prior
to
MISSING
NUT
disassembling the HV Battery. If the VIN is located in table 4, the HV Battery will need to be

disassembled and the HVBMs inspected prior to placing any orders.
STUD FOR
MISSING NUT
PLACE COPY HERE
PLACE COPY HERE
PLACE COPY HERE

CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

TECHNICAL INSTRUCTIONS
PAGE 5 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

NOTE: The HVBMs are replaced in pairs, so the HVBMs are listed as pairs in the VIN table that correlate
to their locations in the HV battery shown in Figure 4.
NOTE: Figure 4 shows the HVBM configuration with lettered values that correlate directly to the HVBMs
in the VIN tables. If the table lists FF, it is referencing the pair of HVBMs labeled F in Figure 4.

2312C

FIGURE 4

STUD FOR
MISSING NUT
STUD FOR
MISSING NUT
STUD FOR
MISSING NUT
PLACE COPY HERE
CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

PLACE COPY HERE
PLACE COPY HERE

TECHNICAL INSTRUCTIONS
PAGE 6 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

VIN Table 1
VINs in this table have the type of HVBM pair that is required and the numeric locations listed. Reference
figure 4 to verify the location and type of HVBM that requires replacement.
VIN Table 2
For VINs in this table, the type of HVBM pair is known but the location is unknown. The installed HVBMs
will need to have their serial numbers compared to what is listed on the VIN table to verify which location
of the HVBM pair requires replacement.
•

•

•

Referencing Figure 4, locate the serial numbers on the installed HVBMs in the HV battery and
compare them with the serial numbers listed in the VIN Table.
HVBM serial numbers that match what is listed in the table are factory installed and DO NOT
require replacement.
A serial number on an installed HVBM that DOES NOT match a serial number in the VIN table is a
service assembly that requires replacement.

NOTE: The serial number is located on the top side of the HVBM near the sense lead connectors and

should be accessible without removing the HVBM (see Figure 5). Accessing the rear BB pair

serial numbers will likely require the removal of the AB pair HVBMs.
VIN Table 3
For VINs in this table, there is more than one HVBM pair that requires replacement, and one or more of
the locations is unknown. The types of HVBM pairs are known. The installed HVBMs will need to have
their serial numbers compared to what is listed on the VIN table to verify which location of the HVBM pair
requires replacement.
•

•

•

Referencing Figure 4, locate the serial numbers on the installed HVBMs in the HV battery and
compare them with the serial numbers listed in the VIN Table.
HVBM serial numbers that match what is listed in the table are factory installed and DO NOT
require replacement.
A serial number on an installed HVBM that DOES NOT match a serial number in the VIN table is a
service assembly that requires replacement.

NOTE: The serial number is located on the top side of the HVBM near the sense lead connectors and
should be accessible without removing the HVBM (see Figure 5). Accessing the rear BB pair serial
numbers will likely require the removal of the AB pair HVBMs.
NOTE: Some VINs in this table will require up to three HVBM to be replaced. If you cannot identify all
HVBMs that needs to be replaced, contact the SSSC for further assistance. Include clear photos
of the Serial Numbers of the modules you are inspecting.

CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

TECHNICAL INSTRUCTIONS
PAGE 7 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

VIN Table 4
VINs in this table do not have serial numbers listed and will require the Julian date codes on the listed
HVBMs to be inspected to find the outlier. VINs in this table will require the HV battery to be dissasembled
and the HVBMs inspected to determine what type of HVBM is needed prior to placing any orders.
•

•

•

Referencing Figures 4 and 5, locate the Julian dates on the installed HVBMs and compare them
with the other HVBM Julian dates to verify what pair is the outlier. If the table states UNKNOWN,
then all the HVBM Julian dates will need to be inspected to find the outlier.
The HVBMs the vehicle was built with will have Julian date codes that are typically within a month
of each other. The service assembly that was installed will have a Julian date code that is not
close and later than the rest of the HVBMs.
If you cannot identify the HVBM that needs to be replaced, contact the SSSC for further
assistance. Include clear photos of the Julian date codes of the modules you are inspecting.

NOTE: The Julian date is part of the serial number and is located on the top side of the HVBM near the

sense lead connectors and should be accessible without removing the HVBM (see Figure 5).

Accessing the rear BB pair serial numbers will likely require the removal of the AB pair HVBMs.

2312E

FIGURE 5
NOTE: Shown in Figure 5 is the HVBM serial number tag. The GREEN box contains the complete HVBM
serial number, and the RED BOX contains the Julian date code. In this example, the HVBM was
built on the 141st day of 2021 (21141) which is May 21, 2021.

STUD FOR
MISSING NUT
CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

STUD FOR
MISSING NUT
STUD FOR
MISSING NUT

TECHNICAL INSTRUCTIONS
PAGE 8 OF 8
CUSTOMER SATISFACTION PROGRAM 23B12

7. Remove the HV Battery and cover. Referencing the VIN Table attachments and VIN table descriptions
above, inspect the HV battery modules to verify what modules require replacement. Replace the
HVBM(s). Follow the procedures in Workshop Manual (WSM) Section 414-03A. This completes this
Field Service Action (FSA).
IMPORTANT NOTE: Federal law prohibits selling motor vehicle parts or components that are

under safety, compliance, or emissions recall. Unless a part is requested to

be returned to Ford, all parts replaced under this FSA must be scrapped in

accordance with all applicable local, state and federal environmental

protection and hazardous material regulations. Refer to the Parts Retention,

Return, & Scrapping section of the FSA dealer bulletin for further information.

CPR © 2024 FORD MOTOR COMPANY
DEARBORN, MICHIGAN 48121
08/2024

Mobile or Pick-Up and Delivery Repair Record
Page 1 of 1
Customer Satisfaction Program 23B12

Mobile Repair / Vehicle Pick-Up and Delivery Record
VIN ____________________________ received (check one):
☐ Mobile Repair

☐ Pick-up and/or delivery service

As outlined below for the 23B12 Field Service Action program.
☐ Mobile Repair – Date: _______________
OR
☐ Pick-up

– Date: _______________

☐ Delivery

– Date: _______________

Repair Order #

Repair Order Date

Service Manager Signature

Date

 Copyright 2024 Ford Motor Company