Subaru Crosstrek manuals

Subaru Crosstrek Service Manual: Dtc u0401 invalid data received from ecm/pcm a

HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM “A”

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

NOTE:

Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE">

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Other materials:

Replacement
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Preparation tool
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