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:

Check cruise indicator light and cruise set indicator light
TROUBLE SYMPTOM:Cruise control can be set, but the CRUISE indicator and SET indicator do not illuminate.STEPCHECKYESNO1.CHECK CRUISE INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT.Perform the combination meter operation check. System Operation Check ModeDo the CRUISE & SET indicators illuminate- Di ...