Technical Service Bulletin TSB 22-2191 — 2020 FORD F-550 SD
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | TSB 22-2191 |
| Manufacturer | |
| Vehicle | 2020 FORD F-550 SD |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
Some 2018-2021 F-150 vehicles equipped with a 3.0L diesel engine, 2016-2022 F-650/F-750 vehicles equipped with a 6.7L engine, and 2017-2022 F-Super Duty vehicles equipped with a 6.7L engine and built on or before 08-Mar-2022 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P21DD, P20BA. P20B9, P204C, P208A, P208B, P208C, P203B, P205B, P21CD and/or U02A2 in the powertrain control module (PCM). This may be due to water intrusion within connectors C3613 and/or C4851/C3610 on the reductant harness going to the reductant pump/heater assembly and the reductant level sensor/quality module. This may also be due to movement of the wiring harness causing terminal fretting. To correct the condition, follow the Service Procedure to replace the reductant tank harness, the reductant pump/heater assembly and/or the reductant tank, as well as securing the wiring harness using a cable zip tie fastener.
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 2020 FORD F-550 SD
SSM 51959
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TSB 23-2160
POWER TRAIN
TSB 22-2443
UNKNOWN OR OTHER
SSM 50982
EQUIPMENT:ELECTRICAL
21B03-S5
POWER TRAIN
SSM 50448
POWER TRAIN
SSM 50388
LANE DEPARTURE: SENSING SYSTEM: CAMERA
SSM 50342
ENGINE AND ENGINE COOLING
TSB 21-2420
POWER TRAIN
TSB 21-2317
POWER TRAIN