Heated Oxygen Sensor (Ho2S) Circuit Malfunction (Sensor-2) - Suzuki Swift User Manual

DTC P0136 HEATED OXYGEN SENSOR (HO2S) CIRCUIT MALFUNCTION
(SENSOR-2)
CIRCUIT DESCRIPTION
Main
fuse
"IG COIL METER"
DTC DETECTING CONDITION
DTC will set when A or B condition is detected.
A. Max. output voltage of HO2S-2 is lower than specified value or
Min. output voltage is higher than specified value while vehicle
driving.
B. Engine is warmed up and HO2S-2 voltage is 4.5 V or more.
(circuit open)
: 2 driving cycle detection logic, monitoring once/1 driving.
ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 6-59
Ignition
switch
To ignition coil
To other sensor To other sensor
Heater
POSSIBLE CAUSE
D Exhaust gas leakage
D "G" or "R" circuit open or short
D Heated oxygen sensor-2 malfunction
D Fuel system malfunction