Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0452 invalid data received from restraints control module

Subaru Legacy BN/BS (2015-2019) Service Manual / Telematics system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0452 invalid data received from restraints control module

Detected when CAN data from airbag CM 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 ECM does not arrive.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Dtc u0073 control module communication bus off

Detected when CAN line abnormality is detected.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Removal
1. Release the fuel pressure. Fuel > PROCEDURE2. Disconnect the ground terminal from battery sensor. NOTE3. Open the fuel filler lid and remove the fuel filler cap.NOTE:This operation is required to release the inner pressure of the fuel tank.4. Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of ...