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

Dtc u0100 lost communication with ecm/pcm "a"

NOTE:Refer to “LAN SYSTEM (DIAGNOSTICS)” for diagnostic procedure. Basic Diagnostic 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 b1572 imm circuit except antenna circuit
1. EXCEPT FOR C0 AND C5 MODELSDTC DETECTING CONDITION:Communication error between keyless access CM and ECMTROUBLE SYMPTOM:Engine will not start.CAUTION:For replacement procedure of keyless access CM and ECM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volum ...