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Bosch EDC17CV (CV41, CV42, CV44, CV52, CV54, CV56): connections for tractors, earth-moving machines and trucks

The EDC17CV family covers commercial vehicles, agricultural machines and construction plant: same Bosch base, but applications ranging from Iveco and MAN to Claas, Deutz, Fendt, John Deere, Komatsu and Massey Ferguson. The manual collects the connection diagrams for each version.

Procedure

1. Note the exact designation from the ECU label: EDC17CV41 TC1797, EDC17CV42 TC1797, EDC17CV44 TC1767, EDC17CV52 TC1797, EDC17CV54 TC1767, EDC17CV56 TC1767.
2. Check that the machine's make appears in the list under the matching entry: for example Isuzu, Case, Claas, JCB, Massey Ferguson, New Holland, Iveco and Sinotruck sit under EDC17CV41, while Fendt, International, MAN, Caterpillar and MAN bus sit under EDC17CV42.
3. Separate the versions by microcontroller: CV41, CV42 and CV52 are TC1797, while CV44, CV54 and CV56 are TC1767; the diagram follows the microcontroller named in the heading, not just the machine name.
4. Open the page for the designation you identified and build the loom following the drawing, respecting pin numbering and wire colours.
5. For the EDC17CV56 TC1767 (Claas, Deutz, Fendt, Hurlimann, Lamborghini tractors, Landini, Massey Ferguson, McCormick, Merlo, Same, Schaffer, Zetor) additionally use the "BSL connection" diagram given in the same section to bring the ECU into boot mode.
6. Power the ECU on the bench with a stable supply and connect the AVDI.
7. Start the read from the software, save the original file and verify it before any write.

Reference screenshots