TSB 23-2021 - Reverse Brake Assist Not Available and B1578:78 Stored in the IPMA

Mach-Lee

Well-Known Member
First Name
Lee
Joined
Jul 16, 2021
Threads
203
Messages
7,730
Reaction score
15,307
Location
Wisconsin
Vehicles
2022 Mach-E Premium AWD
Occupation
Sci/Eng
Country flag
This seems to be an update to TSB 22-2295, however it only applies to vehicles without 360º cameras built before 28-Oct-2022. I should mention the "Reverse Brake Assist Not Available" message at startup is normal after some updates have just been performed, and driving the vehicle for a few miles will clear it automatically. However if the message appears randomly while driving and you haven't just gotten a software update before driving it, then you should have your dealer apply this TSB. The IPMA software will be updated, and the cameras will have to be realigned (procedure requires driving around on a marked road and through a marked parking lot).

TECHNICAL SERVICE BULLETIN
Reverse Brake Assistance Not Available Message And DTC B1578:78 Stored In The IPMA Cannot Be Cleared - Built On Or Before 28-Oct-2022
23-2021
24 January 2023​
Model:
Ford
2021-2022 Mustang Mach-E
Built on or before 28-Oct-2022
Markets: Canada, USA

Issue: Some 2021-2022 Mustang Mach-E vehicles equipped with the rear view camera system only may exhibit the Reverse Brake Assistance Not Available message and diagnostic trouble code (DTC) B1578:78 stored in the image processing module A (IPMA) that cannot be cleared. This may be due to the IPMA software. To correct this condition, follow the Service Procedure to reprogram the IPMA to the latest level.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:

• 2021-2022 Mustang Mach-E
• Built on or before 28-Oct-2022
• Vehicles equipped with the rear view camera system only
• Rear Brake Assistance Not Available message and DTC B1578:78 stored in the IPMA that cannot be cleared

Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
Labor Times
DescriptionOperation No.Time
2021-2022 Mustang Mach-E: Reprogram The IPMA Following The Service Procedure (Do Not Use With Any Other Labor Operations)
MT232021​
Actual Time​
Repair/Claim Coding
Causal Part:14G647
Condition Code:04
Service Procedure
NOTE: When performing the IPMA software update additional modules will receive software updates. Depending on vehicle features, the coordinated software update includes the IPMA, power steering control module (PSCM), cruise control module (CCM) and/or camera module - rear (CMR).
1. Download and run the IPMA - Reset the Image Processing Module A (IPMA) Learned Values application in Ford Diagnosis and Repair System (FDRS).
2. Reprogram the IPMA using the latest FDRS software level. Follow all on-screen instructions carefully to complete all coordinated module software updates.
3. Perform the FDRS Rear Parking Aid Camera alignment procedure.
4. Perform the FDRS Image Processing Module A (IPMA) alignment procedure.
5. Run the IPC-Instrument Panel Cluster (IPC) Configuration application in FDRS.
6. Clear DTCs and check if DTC B1578:78 is not present in the IPMA.
Sponsored

 

Attachments

 




Top