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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine Control System (Diagnostics) (P000A To P015B) (H4DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0031 A/F/O2 Heater Control Circuit Low Bank 1 Sensor 1 >> Execution Condition

Execution Condition

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Secondary Parameters Execution condition
Battery voltage ≥ 10.9 V
Front oxygen (A/F) sensor heater control duty < 87.5%
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