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

Dtc b1431 in-vehicle (post evaporator) temperature sensor circuit short-circuit

DTC DETECTING CONDITION:In-vehicle sensor circuit is shorted.TROUBLE SYMPTOM:In-vehicle air temperature is falsely recognized as 25°C (77°F), and the compartment temperature is adjusted. ...

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:

Operation
1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» display, input the target vehicle information and select «Confirmed».3. On «Main Menu» display, select «Each System».4. On «Select System» display, select «Body Control» and then select «Enter».5. On «Select Funct ...