TSB 20-2074

TECHNICAL SERVICE BULLETIN
6.2L/7.3L Gas Engine - 10R140 Transmission - Illuminated MIL With
DTC P27B4 - Built On Or Before 5-Dec-2019
202074
11 March
2020
Model:
Ford
2020 F-Super Duty
Engine: 6.2L
Engine: 7.3L
Transmission/Transaxle: (10R140)
Issue: Some 2020 F-Super Duty vehicles equipped with a 6.2L/7.3L gas engine and 10R140 transmission
built on or before 5-Dec-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic
trouble code (DTC) P27B4 stored in the powertrain control module (PCM). This may be due to various
strategies within the PCM software. To correct the condition, follow the Service Procedure to reprogram
the PCM.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following
criteria:
• 2020 F-Super Duty
• Built on or before 5-Dec-2019
• 6.2L/7.3L gas engine
• 10R140 transmission
• DTC P27B4 stored in the PCM
Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Emissions
Warranty/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP)
coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/Emissions
Warranty/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using
the OASIS part coverage tool.
Labor Times
Operation
No.
Description
2020 F-Super Duty 6.2L/7.3L: Retrieve DTCs And Reprogram The PCM (Do Not
Use With Any Other Labor Operations)
202074A
Time
0.4
Hrs.
Repair/Claim Coding
Causal Part:
RECALEM
Condition Code: 04
Service Procedure
1. Reprogram the PCM using the latest software level of the appropriate Ford diagnostic scan tool.
NOTE: Advise the customer this vehicle is equipped with an adaptive transmission shift strategy
which allows the vehicle's computer to learn the transmission's unique parameters and improve
shift quality. When the adaptive strategy is reset, the computer will begin a relearning process.
This relearning process may result in firmer than normal upshifts and downshifts for several days.
© 2020 Ford Motor Company
All rights reserved.
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge,
tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or
provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do
not assume that a condition described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the
Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended
Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was
current at the time of printing. Ford Motor Company reserves the right to supersede this information with updates. The most recent
information is available through Ford Motor Company's on-line technical resources.