General Information

P2232 O2 Sensor Signal Circuit Shorted to Heater Circuit (Sensor 2)

General Information

Component Location





General Description

HO2S (B1/S2) is in the rear side of Catalytic Converter to check the proper operation of catalyst. Oxygen density after the catalytic converter has to be within specific range (around 0.5 V when there is no acceleration and deceleration.)
If the oxygen density changes in accordance with HO2S (B1/S1), it means the poor performance of catalytic converter.

DTC Description

If the counter that records rapid signal voltage changes is greater than 5, P2232 is set

DTC Detecting Condition





** xushk : Sum of the signal voltage change value (B1S2)
** B1S1 : upstream oxygen sensor / B1S2 : downstream oxygen sensor

Specification





Schematic Diagram





Signal Waveform