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

Dtc u0100 lost communication with ecm/pcm "a"

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

Preparation tool

CAUTION:To measure the voltage and resistance of airbag system component, be sure to use the specified test harness.1. SPECIAL TOOL• SUBARU SELECT MONITORILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARK ...

Other materials:

Adjustment
1. Using the ST, screw-in the retainer until resistance is felt.NOTE:RH side should be screwed-in more than LH side.ST 18658AA020WRENCH COMPL RETAINER2. Remove the remaining liquid gasket from the mating surface completely.3. Using the ST, install the drive pinion assembly to converter case.ST ...