Signal Waveform & Data

TEST CONDITION CHART

Test Condition		GDS Parameter
Test Condition		O2 SNSR VOL.-B1/S1	O2 SNSR VOL.-B1/S2
Normal Value when circuit is normal	Idle after warm up	Signal is switching from rich (above 0.45 V) to lean (below 0.45 V) a minimum of 3 times in 10	above 0.7 V
HO2S (B1S1) signal circuit open		Approx. 0.43 ~ 0.45 V	-
HO2S (B1S2) signal circuit open		-	Approx. 0.43 ~ 0.45 V

Fig 1: Screen Display - Current Data

Courtesy of HYUNDAI MOTOR CO.

HO2S signal waveform with idle after warm up:

1: Normal status (Approx. above 0.7 V), 2: Open in signal circuit (Approx. 0.4 ~ 0.5 V)