P1139 OBD Trouble Code

1 result found

P1139 - Subaru
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Heated oxygen sensor (HO2S) heater control - range/performance problem
Location Sensor 1
Cause

Wiring, HO2S, ECM

Try also: https://www.obd-codes.com/p1139