GWM, Haval, JAC and BAIC: additional OBD access for diesel models
Delphi DCM3.7AP and DCM6.2AP can be read and written through the diagnostic port with Autotuner. The new support covers selected 2.0-liter diesels.
Since October 19, 2026, Autotuner has supported Delphi DCM3.7AP via OBD Normal Read in applications including GWM Hover 5/H5 and Steed from 2013, Wingle from 2010 and Haval H6 from 2011 with the 2.0 TD GW4D20.
For DCM6.2AP, the manufacturer lists Haval H6 from 2017 with GW4D20D, Haval H9 from 2014 with GW4D20T, JAC T6 from 2015 and T8 from 2020 with 2.0 Diesel, and BAIC BJ40 from 2014 with 2.0d. Calibration is read; checksum correction is included. Stated times are six minutes for reading and five minutes 30 seconds for writing. Support is released without a beta label.
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