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:

Inspection
1. Check that the oil temperature sensor has no deformation, cracks or other damages.2. Check the resistance between the oil temperature sensor terminals.Terminal No.Standard1 and 2Approx. 2.45±0.2 k- (when 20°C (68°F)) ...