Honda Civic manuals

Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0422 invalid data received from body control module

Detected when CAN data from BIU is abnormal.

NOTE:

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

Dtc u0100 lost communication with ecm/pcm "a"
Detected when CAN data from the engine control module (ECM) does not arrive.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

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 ...

Other materials:

Inspection
1. Check the continuity between the connectors.Preparation tool:Circuit testerTerminal No.Inspection conditionsSpecification4 (COM) — 5 (GND)AlwaysContinuity exists7 (SSW1) — 5 (GND)Push button ignition switch released > pressedContinuity exists2 (SSW2) — 5 (GND)Push button ignition switch rel ...

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