Diagnostic Method

Detect the trouble by calculating the response time of the rear oxygen sensor after fuel cut.

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Judge as NG when the following conditions are established.

Judgment value

Malfunction Criteria	Threshold Value
Time needed for rear oxygen sensor voltage to change from 0.2V to 0.5 V	> 4000ms

Time needed for diagnosis: Less than 1 second

Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

ENGINE (DIAGNOSTICS) (H6DO)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)