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 / Steering responsive fog lights (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 CM.

NOTE:

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

Dtc b2900 ahl control

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

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

Detected when data from body integrated unit is abnormal.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Inspection
1. Visually check the ambient sensor for dirt or damage, and clean or replace as necessary.2. Measure the resistance between ambient sensor terminals.CAUTION:During inspection, be careful not to touch the sensor end in order to avoid misjudgment due to body temperature.Preparation tool:Circuit teste ...