Why do several fault lights in the instrument panel light up after installation of a wiring harness?

This only happens with CAN bus wiring harnesses because the data bus leads have been connected wrongly. The lead connections must be re-checked and connected correctly to avoid further faults. The fault log must be cleared immediately after resolution of the fault.

Other faults may occur if you use the wrong wiring harness or the wrong control unit. Therefore, please check the wiring harness and the software version.