Have Volkswagen Questions? Ask an Expert Now.
If you have no communication at abs control module have you checked to see if you have power and ground at the abs control module ?? the reason the check engine light has triggered is because you have lost can bus communication with the abs module.
Yes it uses the abs sensors determine speed , your issue is not very common we have seen abs control modules fail and cause this issue which this will need a new abs control module replaced and coded and the abs sensors like brake pressure sensor and g85 steering angle sensor basic settings reset and calibrated after replacement which require a vw capable scan tool . Since there are so many fuses that are tight in the can bus system that can cause a issue i recommend you check them all with a test light , one other thing to check is remove the connector on the abs control module and looked for backed out pins and corrosion in the wiring . I hope this helps .
Please dont forget to provide positive feedback for the help provided we as experts rely on this feedback thank you
Ok you have a failed abs control module with pump make sure you replace it as a complete unit with both the module and the pump new and it will need to be coded and the abs sensor basic settings reset common issue . I hope this has helped .
Please dont forget to provide positive feedback for the help provided we as experts rely on this thank you