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Signal Waveform And Data

DTC P2270 SIGNAL WAVEFORM AND DATA

Test Condition		Scan Tool 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 0.45V) to lean (below 0.45V) a minimum of 3 times in 10 seconds.	Above 0.7V
HO2S (B1S1) signal circuit open		Approx. 0.43~0.45V	-
HO2S (B1S2) signal circuit open		-	Approx. 0.43~0.45V

Fig 1: HO2S Signal Waveform With Idle After Warm Up

Courtesy of HYUNDAI MOTOR CO.