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Home >> Subaru >> 2015 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 186 (Security And Locks - Keyless Access (W/Push Button Start) (Diagnostics)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0401 Invalid Data Received From ECM/Pcm "A"

DTC U0401 Invalid Data Received From ECM/Pcm "A"

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Detected when there is malfunction in CAN data from the engine control module (ECM).

NOTE: Perform the diagnosis for LAN system. < Ref. to PROCEDURE , Basic Diagnostic Procedure. >
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