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GD(H6DO)-32 Diagnostic Trouble Code (DTC) Detecting Criteria GENERAL DESCRIPTION 5. DIAGNOSTIC METHOD • Abnormality Judgement Judge as NG when Low side or High side becomes NG. Time Needed for Diagnosis: • Normality Judgement Judge as OK and clear the NG when both Low side and High side become OK. Time Needed for Diagnosis: Judgement Value Malfunction criteria Threshold value Low Output voltage < 1.79 V Engine speed t 2000 rpm Throttle opening angle t 15 ° Intake manifold pressure t 73.3 kPa (550 mmHg, 21.7 inHg) High (1) Output voltage t 1.83 V Engine speed 500 rpm — 850 rpm Throttle opening angle < 3.5 ° Intake manifold pressure t 46.7 kPa (350 mmHg, 13.8 inHg) High (2) Output voltage t 1.73 V Engine speed 500 rpm — 850 rpm Throttle opening angle < 3.5 ° Intake manifold pressure t 46.7 kPa (350 mmHg, 13.8 inHg) Fuel system diagnosis Rich side malfunction Judgement Value Malfunction criteria Threshold value Low Output voltage t 1.79 V Engine speed t 2000 rpm Throttle opening angle t 15 ° Intake manifold pressure t 73.3 kPa (550 mmHg, 21.7 inHg) High Output voltage < 1.83 V Engine speed 500 rpm — 850 rpm Throttle opening angle < 3.5 ° Intake manifold pressure < 46.7 kPa (350 mmHg, 13.8 inHg) Fuel system diagnosis Rich side normal |