HO2S HEATER CONTROL OUTLINE [AJ]

BME014000000T71

HO2S (Front) Heater

• PCM controls HO2S (Front) heaters by duty signal that is calculated based on engine condition.

Block diagram

1
MAF sensor
2
IAT sensor
3
CKP sensor
4
ECT sensor
5
TP sensor
6
Battery
7
PCM
8
HO2S (Front) heater

HO2S (Rear) Heater (European (L.H.D.) Specs.)

• PCM turns HO2S (Rear) heater ON when exhaust gas temperature is low.

Block diagram

1
MAF sensor
2
CKP sensor
3
ECT sensor
4
PCM
5
HO2S (rear) heater