# Service bulletin TSB 23\-2031

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10233583
- Published by NHTSA: 2023\-04\-04
- Manufacturer's number: TSB 23\-2031
- Manufacturer's date: 2023\-03\-22
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

Some 2021\-2022 F\-150 vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble code \(DTC\) P2C44:00 stored in the powertrain control module \(PCM\). This may be due to the software in the PCM and the auxiliary battery isolator. To correct the condition, follow the Service Procedure to reprogram the PCM and replace the auxiliary battery isolator.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233583-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233583-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module

## Trouble codes named

P2C44

## Vehicles listed

- 2021 to 2022 FORD F\-150

## Recalls for the same vehicles and component

- [26V402000](/recalls/nhtsa/26V402000.md), 2026-06-24: POWER TRAIN:AUTOMATIC TRANSMISSION
- [25V863000](/recalls/nhtsa/25V863000.md), 2025-12-12: POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:PARK PAWL
- [25V169000](/recalls/nhtsa/25V169000.md), 2025-03-14: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)
- [23V070000](/recalls/nhtsa/23V070000.md), 2023-02-10: POWER TRAIN:AUTOMATIC TRANSMISSION
- [22V188000](/recalls/nhtsa/22V188000.md), 2022-03-25: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## Other bulletins for the same vehicles and component

- [TSB 24\-2097](/bulletins/10252670.md), 2024-04-04, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Some 2021\-2022 F\-150 non\-Lightning vehicles may exhibit an illuminated powertrain malfunction \(wrench\) indicator and Service Vehicle Soon message in the instrument panel cluster \(IPC\) with diagnostic trouble code \(DTC\) U031D in the powertrain control module \(PCM\) and no other drivability concerns. This may be due to the configuration of the PCM.
- [SSM 52371](/bulletins/10252635.md), 2024-04-04, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Some 2021\-2022 F\-150 non\-Lightning vehicles may exhibit an illuminated powertrain malfunction \(wrench\) indicator and Service Vehicle Soon message in the instrument panel cluster \(IPC\) with diagnostic trouble code \(DTC\) U031D in the powertrain control module \(PCM\) and no other drivability concerns. This may be due to the configuration of the PCM. To correct this condition, run the PCM \- Disable Pro Trailer Hitch Assist application using the latest software level of the Ford Diagnosis and Repair System \(FDRS\) scan tool.
- [SSM 52349](/bulletins/10252621.md), 2024-04-04, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Some 2021\-2023 F\-150 vehicles may exhibit DTC C0604:00 stored in the powertrain control module \(PCM\) and may have an Active Air Dam System Fault See Manual message displayed in the instrument panel cluster \(IPC\). To correct this condition, clear and retest for the DTC C0604:00. If DTC C0604:00 returns, refer to Workshop Manual \(WSM\) Section 501\-19 Bumpers, Diagnosis and Testing for additional diagnosis.
- [SSM 52244](/bulletins/10250306.md), 2024-02-14, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Some 2021\-2023 F\-150 vehicles equipped with a 3.5L PowerBoost hybrid engine, 2020\-2023 Explorer vehicles equipped with a 3.3L hybrid engine and 2020\-2023 Aviator vehicles equipped with a 3.0L hybrid engine may exhibit a malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P0A1E stored in the powertrain control module \(PCM\) and auto start/stop disabled. This may be due to a loose wiring connection to the belt integrated starter generator \(BISG\). The Workshop Manual \(WSM\) has recently been updated to provide new direction for DTC P0A1E. Refer to the WSM, Section 303\-06 Starting System, Diagnosis and Testing, Starting System for applicable diagnosis.
- [OTA 23PU1009SSNS](/bulletins/10249826.md), 2024-02-07, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Software Update PU1009\-SS\-NS for 2023 MY F\-150 vehicles is now available. Quality Improvements include: \-Eliminate incorrect Fuel System Lean PCM Fault DTC/MIL setting. \- Robustness action in operation of vehicle to detect low\-state\-of\-charge battery and prevent engine stall, as well as provide improved warning to customers when low\-state\-of\-charge conditions exist. \- Eliminate potential ABS Yaw Rate Calibration issue. \- Robustness action to prevent potential line pressure drift DTC from setting. \- Eliminate False Positive Throttle DTC or MIL from setting \- Eliminate potential ABS Yaw Rate Calibration issue. \- Robustness action to alleviate the Nuisance SSN \(Stop Safely Now\) message from setting and vehicle should operate as expected in the next Key Start event \- Eliminates potential Emergency Parking Brake activation when wire harness experience a short.
- [OTA23PU0630YAW](/bulletins/10249823.md), 2024-02-07, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Software Update 23\-PU0630\-YAW\-RT for 2021 MY F\-150 vehicles is now available. Quality Improvements include: \-Correct the Generator voltage desired \(GENVDSD\) parameter identification \(PID\) missing from the powertrain control module \(PCM\) PID list in the Ford Diagnosis And Repair System \(FDRS\) scan tool. Refer TSB 23\-2154 \- Robustness action in operation of vehicle to detect low\-state\-of\-charge battery and prevent potential engine stall, as well as provide improved warning to customers when low\-state\-of\-charge conditions exist. \- Robustness action to prevent potential line pressure drift DTC P084B from setting. \- Eliminate potential ABS Yaw Rate Calibration issue. \- Robustness action to alleviate the Nuisance SSN \(Stop Safely Now\) mesage from setting and vehicle should operate as expected in the next Key Start event \- Eliminates potential Emergency Parking Brake activation when wire harness experience a short.
- [TSB 23\-2429](/bulletins/10248370.md), 2024-01-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN. This article supersedes TSB 23\-2363 to add 2021\-2022 vehicle model years, update the symptom and the causal part. Some 2021\-2023 F\-150 vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble code \(DTC\) P084B stored in the powertrain control module \(PCM\). This may be due to the software level of the PCM. To correct this condition, perform the Service Procedure below to reprogram the PCM to the latest software level via the Ford Diagnosis and Repair System \(FDRS\).
- [TSB 23\-2425](/bulletins/10248366.md), 2024-01-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY. This article supersedes TSB 23\-2337 to update the Service Procedure and the causal part. Some 2022\-2023 F\-150 hybrid vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated MIL with diagnostic trouble codes \(DTCs\) P0420 and/or P0430 stored in the powertrain control module \(PCM\). This may be due to high sulfur content in the fuel. To correct the condition, follow the Service Procedure to reprogram the PCM and remove sulfur from the catalytic converters.
- [TSB 23\-2408](/bulletins/10248361.md), 2024-01-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Some 2021 F\-150 vehicles equipped with a 3.0L diesel engine and an 8 inch instrument panel cluster \(IPC\) display \(minor feature code HKRAC, found by double\-clicking the top left vehicle identification number \(VIN\) in OASIS\) may exhibit an oil change minder feature that stays at 100% and does not decrease in the IPC. This may be due to the software level of the IPC. To correct this condition, follow the Service Procedure to update the APIM to the latest software level via a coordinated flash.
- [OTAPU1009TLCCSM2](/bulletins/10246346.md), 2023-12-07, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:CONTROL MODULE. Software Update PU1009\-TLC\-CSM2 for 2021 F\-150 vehicles is now available. Quality Improvements include: \-improvement to trailer license plate lights illumination. \-improvement to interior motion sensor alarm to prevent inadvertent alarms \-enhancement to prevent alarm activation during inhibit OTA updates

JSON: [/v1/bulletins/10233583](/v1/bulletins/10233583)

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