21300122P03 — TRW EMS2 ECU, Volvo Trucks B12R
Original (stock) ECU file for the Volvo Trucks B12R — 12000 340HP, TRW EMS2 controller, hardware 21300122P03, software 21353626P01. Unmodified factory read, usually within 3 hours after we confirm your ECU numbers.
Identification
| Vehicle | Volvo Trucks B12R |
|---|---|
| Engine | 12000 340HP |
| ECU | TRW EMS2 |
| Hardware number | 21300122P03 |
| Software number | 21353626P01 |
| Software upgrade | 21346624P01 |
Compatibility
The same TRW EMS2 with part number 21300122P03 is also fitted to these vehicles / engines in our archive:
| Vehicle | Engine | Software |
|---|---|---|
| Volvo Trucks B12R (this page) | 12000 340HP | 21353626P01 |
| Renault Trucks PREMIUM | 11000 460HP | 21906984P01 |
| Volvo Trucks B12M | 12800 400HP | 21786467P01 |
| Volvo Trucks B13R | 13000 480HP | 21536020P01 |
| Volvo Trucks B9R | 9300 380HP · D9B | 21536107P01 |
| Volvo Trucks FH13 | 13000 530HP | 22577268P01 |
| Volvo Trucks FH13 | 13000 480HP | 21986533P01 |
| Volvo Trucks FH13 | 13000 440HP | 21444166P01 |
| Volvo Trucks FH13 | 13000 440HP | 21474030P01 |
| Volvo Trucks FH16 | 16000 600HP | 22032781P01 |
| Volvo Trucks FH16 | 16000 540HP | 21275400P01 |
| Volvo Trucks FH16 | 16000 540HP | 21664887P01 |
| Volvo Trucks FH16 | 16000 600HP | 21631701P01 |
| Volvo Trucks FH16 | 16000 600HP | 21762058P01 |
| Volvo Trucks FH16 | 16000 600HP | 21446649P01 |
| Volvo Trucks FH16 | 16000 600HP | 20966480P02 |
| Volvo Trucks FH16 | 16000 580HP | 21779651P01 |
| Volvo Trucks FH16 | 161L E5 700HP · D16G | 21762058P01 |
| Volvo Trucks FM13 | 13000 370HP | 21536020P01 |
| Volvo Trucks FMX | 370HP | 21536020P01 |
Cross references
Other software levels recorded on hardware 21300122P03:
Other hardware carrying software 21353626P01:
What you get
A full, unmodified read of the TRW EMS2 as it left the factory — the binary file produced by the original reading tool, no checksum or map changes. Use it to restore a stock calibration after a failed flash or a bad tune, or as the reference file for a tuning job. 2 reads are stored for this identification; you receive the one matching your ECU identification.
| Archive reference | Driver | Damos / A2L |
|---|---|---|
| V12_0A21 | V12_0A21 | — |
| V12_1643 | V12_1643 | — |
Delivery: released to your account and announced by email usually within 3 hours, within 24 hours on business days, once we confirm the read matches the numbers on this page.
Questions about this file
Is this original file compatible with my Volvo Trucks B12R?
Compare the hardware number (21300122P03) and the software number (21353626P01) with the identification your tool reads from the ECU. The software number must match; a different hardware revision usually means a different file. TRW EMS2.x controllers (Volvo / Renault Trucks) use P-numbers: a hardware number such as 21323765P04 and a software number such as 22929395P01. The software upgrade number is the calibration actually loaded.
What exactly do I receive when I buy the TRW EMS2 original for €25?
An unmodified factory read of the TRW EMS2 (HW 21300122P03, SW 21353626P01, upgrade 21346624P01) as stored in our archive — a binary file in the format produced by the original reading tool, chosen among the 2 reads listed on this page after we match your identification. No modifications, no checksum changes: it is meant to restore the ECU to its stock calibration or to serve as a reference for a tuning job.
How and when is the file delivered?
After payment we confirm the read matches the numbers on this page and release it to your account, with an email notification — usually within 3 hours, within 24 hours on business days. If your ECU reports different numbers, tell us with the order and we look for the right file before delivering anything.
Can you also tune this TRW EMS2 or remove EGR / AdBlue / DPF?
Yes — upload your own read through the tuning service and choose the modifications; every tuning job is quoted individually before you pay. The original on this page is useful as a backup before any modification is flashed.