Dtc P0135 (Dtc No.14) Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction (Sensor-1) - Suzuki Jimny Service Manual

6-62 ENGINE GENERAL INFORMATION AND DIAGNOSIS
DTC P0135 (DTC No.14) Heated Oxygen Sensor (HO2S) Heater Circuit Mal-
function (Sensor-1)
CIRCUIT DESCRIPTION
1. Heated oxygen sensor-1 (HO2S-1) heater
DTC DETECTING CONDITION
DTC will set when A or B condition is met.
A :
• Low voltage at terminal E19-7 when engine is running
at high load.
B :
• High voltage at terminal E19-7 when engine is running
under condition other than above.
✱ ✱ ✱ ✱ 2 driving cycle detection logic, Continuous monitoring.
DTC CONFIRMATION PROCEDURE
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic acci-
dent and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester.
1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON, start engine and keep it at idle for 1 min.
3) Start vehicle and depress accelerator pedal fully for 5 sec. or longer.
4) Stop vehicle.
5) Check DTC in "DTC" mode and pending DTC in "ON BOARD TEST" or "PENDING DTC" mode.
POSSIBLE CAUSE
• HO2S-1 heater circuit open or shorted to ground
• ECM malfunction