Sunday, July 7, 2019

2020 Subaru Forester P code Page 160

Time Needed for Diagnosis: Less than 1 second

P1153

DTC P1153 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (HIGH) (BANK1 SENSOR1)

1. OUTLINE OF DIAGNOSIS

Detect that lambda value remains high.

Judge as NG when lambda value is abnormal in accordance with Lambda value of front oxygen (A/F) sensor and running conditions such as

vehicle speed, amount of intake air, engine coolant temperature, sub feedback control, etc.

2. COMPONENT DESCRIPTION

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