# Service bulletin TJ35774.1.0\-2020

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: 10186178
- Published by NHTSA: 2021\-02\-01
- Manufacturer's number: TJ35774.1.0\-2020
- Manufacturer's date: 2020\-12\-05
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

This is a Technical Journal: PSCM ghost codes U230057 / U112B87

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10186178-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10186178-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

U112B, U2300

## Vehicles listed

- 2021 VOLVO XC40

## Recalls for the same vehicles and component

- [2022216](/recalls/tc/2022216.md), 2022-04-28: Electrical
- [21V109000](/recalls/nhtsa/21V109000.md), 2021-02-24: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE \(BMS/BECM\):SOFTWARE

## Other bulletins for the same vehicles and component

- [37376.3.0](/bulletins/11031093.md), 2026-04-07, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: Propulsion Message with DTC BECM P0A9500 and/or P0E2F00. Check the following parameters below. Utilize the High\-voltage system overview to make sure that the contactors are closed while performing this check.
- [37376](/bulletins/11025566.md), 2025-11-17, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: Propulsion Message with DTC BECM P0A9500 and/or P0E2F00. Perform a "High\-voltage system overview" read out. If the BECM "voltage after fuse" values \(front and rear\) are greater than the high voltage battery, the BECM needs to be replaced.
- [36916](/bulletins/11021914.md), 2025-08-18, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: VCM Backup Battery Replacement with VCM\-U105000. Replace the VCM Backup Battery and download the relevant Software.
- [37376](/bulletins/11020547.md), 2025-07-09, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: Propulsion Message with DTC BECM P0A9500 and/or P0E2F00. Perform a "High\-voltage system overview" read out
- [37376](/bulletins/11020535.md), 2025-07-09, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: Propulsion Message with DTC BECM P0A9500 and/or P0E2F00. Perform a "High\-voltage system overview" read out
- [36961](/bulletins/11016902.md), 2025-04-09, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: Improved 12V battery test in VIDA. Service:\&\#13; Don´t charge the battery before the test, jump start the vehicle if needed. Read out the vehicle with VIDA and start the test.\&\#13;
- [37105](/bulletins/11014131.md), 2025-02-11, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: ICUP \- Volvo Cars app displays "Vehicle offline" message. fault trace the 12 V system according to VIDA
- [36309](/bulletins/11014127.md), 2025-02-11, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: BEV IHFA P060C04 Internal Processor Failure. Perform software upgrade.
- [36309](/bulletins/11011736.md), 2024-12-10, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: BEV IHFA P060C04 Internal Processor Failure. Improved IHFA Software.
- [37105](/bulletins/11009816.md), 2024-11-05, Service bulletin: ELECTRICAL SYSTEM. This is a Technical Journal: ICUP \- Volvo Cars app displays "Vehicle offline" message. fault trace the 12 V system according to VIDA

JSON: [/v1/bulletins/10186178](/v1/bulletins/10186178)

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