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

Dtc u0100 lost communication with ecm/pcm "a"

DTC DETECTING CONDITION:No data is received from ECM.TROUBLE SYMPTOM:Cooperation control of transmission may not operate properly.STEPCHECKYESNO1.CHECK PERFORMING OF BASIC DIAGNOSTIC PROCEDURE.Was the ...

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:

Brake line inspection
1. BRAKE LINE1. Check for scratches, swelling, corrosion, traces of fluid leakage on the brake hoses or pipe joints.2. Make sure that brake pipes/hoses do not interfere with adjacent parts and there is no loose connector/clamp during driving.3. Check any trace of fluid leakage, scratches, etc. on ma ...