LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 125 (Engine Control System Diagnosis (1 Of 2) (HEV)) >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) >> General Information >> Signal Waveform & Data >> Scan Tool Display for HO2S

Scan Tool Display for HO2S

WARNING: This page is about a different variant/trim than selected.
Test Condition Scan Tool Parameter
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