Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0401 invalid data received from ecm/pcm "a"

Subaru Legacy BN/BS (2015-2019) Service Manual / Body control system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0401 invalid data received from ecm/pcm "a"

Received error data from ECM.

NOTE:

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

Dtc u0402 invalid data received from tcm

Received error data from TCM.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Dtc u0327 software incompatibility with vehicle security control module

No data is received from keyless access CM.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

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Dtc b1817 short in passenger's airbag dual stage - 2nd step (to ground)
DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:GND short circuit failure (shorted to ground in main harness, shorted to ground in passenger’s airbag, shorted to ground in airbag CM internal circuit)CAUTION:Before performing diagnosis, refer to “CAUTION ...