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Home >> Subaru >> 2016 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) (WRX) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P1134 A/F/O2 Sensor Bank1 Sensor1 Serial Peripheral Interface (SPI) Communication >> Diagnostic Method

Diagnostic Method

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Communication status between CPU and A/F sensor microcomputer Malfunction

Time Needed for Diagnosis:  80 ms

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.

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