Technical Service Bulletin SSM 50322 — 2021 FORD F-450 SD
POWER TRAIN
Bulletin Details
| TSB ID | SSM 50322 |
| Manufacturer | |
| Vehicle | 2021 FORD F-450 SD |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
Some 2021-2022 F-Super Duty vehicles equipped with 4x4 may exhibit an illuminated powertrain malfunction (wrench) indicator and a 4x4 warning lamp with DTC P1812 stored in the transfer case control module (TCCM). DTC P1812 can set if the 4X4 selector switch is inadvertently left between detents of the switch during operation. If DTC P1812 is present, cycle the 4X4 selector switch several times and retest. If the DTC persists, inspect the selector switch connector for bent or pushed out pins. If no concerns are identified, refer to Workshop Manual (WSM), Section 308-07A pinpoint test D.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2021 FORD F-450 SD
TSB 25-2119
UNKNOWN OR OTHER
SSM 51265
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
21M05 S3
UNKNOWN OR OTHER
SSM 51170
ENGINE AND ENGINE COOLING
SSM 51078
ELECTRICAL SYSTEM
21M05-S1
STRUCTURE:BODY:TAILGATE
SSM 50718
SERVICE BRAKES
SSM 50512
POWER TRAIN
SSM 50455
ELECTRICAL SYSTEM
SSM 50380
FUEL SYSTEM, GASOLINE