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In my case am getting code in w212 2012 U1138 CAN communication with component 'Auxiliary CURRENT and STORED oil pump has a malfunction
Topic starter
Posted : 10/18/2024 1:53 pm
While we do support that year make and model as it does have a 722.9 TCM, the U1138 points to a network failure with the auxiliary oil pump not the TCM.Check the CAN bus connections, the wiring and plugs for any issues, and lastly inspect the auxiliary oil pump itself for any faults.
Posted : 10/18/2024 1:53 pm