Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0122 lost communication with vehicle dynamics control module

Subaru Legacy BN/BS (2015-2019) Service Manual / Auto headlight beam leveler system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0122 lost communication with vehicle dynamics control module

Detected when CAN data (vehicle speed signal) is not received from VDC.

NOTE:

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

Dtc b2900 ahl control

DTC DETECTING CONDITION:Detected when internal malfunction occurs in the auto headlight beam leveler CM.TROUBLE SYMPTOM:The auto headlight beam leveler does not operate.CAUTION:Initialization is requi ...

Dtc u1422 invalid data received from body control module body-can

Detected when CAN data (headlights ON signal) is invalid.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Fuel pressure inspection
1. Release the fuel pressure. Fuel > PROCEDURE2. 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.3. Disconnect the fuel delivery tube from the fuel delivery pipe, and connect the fuel pressure gauge.CAUTION:&bull ...