Subaru Legacy BN/BS (2015-2019) Service Manual: General description

Dtc u0122 lost communication with vehicle dynamics control module

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

Preparation tool

1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS — (Newly adopted tool)SUBARU SELECT MONITOR 4Used for setting of each function and troubleshooting for electrical system.NOTE:For detailed op ...

Other materials:

Dtc b1012 battery backup power supply
DTC DETECTING CONDITION:Voltage failure caused by poor contact of battery power supply backup circuitsBAT (back-up) voltage was outside the range of 8.3 — 16.7 V, when the BAT (back-up) power supply was ON.Time Needed for Diagnosis:40 s or moreTROUBLE SYMPTOM:Illuminations for the keyless entry, m ...