# Service bulletin TT 01 19 05\_4

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: 10203451
- Published by NHTSA: 2021\-12\-07
- Manufacturer's number: TT 01 19 05\_4
- Manufacturer's date: 2021\-11\-04
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE

## NHTSA's summary

Diagnostic assistance for no start or no communication with ECM with DTC U0100 stored.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203451-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203451-9999.pdf)

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

## Components

Engine, Engine control module

## Trouble codes named

U0100

## Vehicles listed

- 2019 VOLKSWAGEN ARTEON
- 2018 to 2019 VOLKSWAGEN ATLAS
- 2018 to 2019 VOLKSWAGEN BEETLE
- 2018 to 2019 VOLKSWAGEN BEETLE CONVERTIBLE
- 2018 to 2019 VOLKSWAGEN GOLF
- 2018 to 2019 VOLKSWAGEN GOLF SPORTWAGEN
- 2018 to 2019 VOLKSWAGEN GTI
- 2018 to 2019 VOLKSWAGEN JETTA
- 2018 to 2019 VOLKSWAGEN PASSAT
- 2018 to 2019 VOLKSWAGEN TIGUAN

## Other bulletins for the same vehicles and component

- [TT 01 19 05\_6](/bulletins/10250766.md), 2024-03-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Engine Crank, No Start or No \-J623\- ECM Communication with DTC U0100 Stored in ECM Fault Memory
- [V0121022060969\_4](/bulletins/10248095.md), 2024-01-04, Service bulletin: UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. Update programming of Engine motor control module \-623\- Improvements made to ECM software for better combustion stability during catalyst heating and engine warmup.
- [V0123092071325\_1](/bulletins/10244526.md), 2023-11-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. Update Programming in Engine/Motor Control Module, DTC P054A
- [VIN4APIN20230517](/bulletins/10236366.md), 2023-06-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); SEAT BELTS; SEATS; EXTERIOR LIGHTING:TAIL LIGHTS. Customer states MIL\-on, P0442 stored in ECM memory Customer states MIL\-on, fault P2402 stored in ECM memory Customer states MIL\-on, fault P04F0 stored in ECM memory Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Noise from front end while driving Customer states condensation in the taillights Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\) Customer states seat memory is inoperative Customer states seat belt won't retract
- [VIN4APIN20230515](/bulletins/10236365.md), 2023-06-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\); SEAT BELTS; SEATS. Customer states MIL\-on, P0442 stored in ECM memory Customer states MIL\-on, fault P2402 stored in ECM memory Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Noise from front end while driving Customer states MIL\-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states condensation in the taillights Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\) Customer states seat memory is inoperative Customer states seat belt won't retract
- [VOS\-23\-10](/bulletins/10235141.md), 2023-05-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Instructional document regarding the installation of a hotfix for the ODIS service software. Hotfix is to be used after an ECM Replacement
- [VIN4APIN20230330](/bulletins/10233609.md), 2023-04-06, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Customer states MIL\-on, fault P2402 stored in ECM memory Customer states rattle from beneath the vehicle Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Noise from front end while driving Customer states MIL\-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\) Customer states seat belt won't retract
- [VIN4APIN20230306](/bulletins/10232750.md), 2023-04-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Customer states rattle from beneath the vehicle Customer states MIL\-on with P0087, P1020, P053F and/or P0148 Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Noise from front end while driving Customer states MIL\-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states seat belt won't retract
- [VIN4APIN20230301](/bulletins/10232749.md), 2023-04-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Customer states rattle from beneath the vehicle Customer states MIL\-on with P0087, P1020, P053F and/or P0148 Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Noise from front end while driving Customer states MIL\-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states seat belt won't retract
- [VIN4APIN20230220](/bulletins/10232118.md), 2023-03-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Customer states MIL\-on, fault P0456 and/or P0442 stored in ECM memory Noise from front end while driving Customer states MIL\-on/Airbag light, fault U019900 and/or B101715 stored in ECM/Airbag memory Customer states seat belt won't retract

JSON: [/v1/bulletins/10203451](/v1/bulletins/10203451)

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