LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2004 >> Aerio L4-2.3L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> P Code Charts >> P0135
April 5, 2026: LEMON Manuals is launched! Read the announcement.

P0135

DTC P0135: Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction (Bank - 1 Sensor - 1)






DTC Detecting Condition And Trouble Area:






DTC Confirmation Procedure

NOTE:
Check to make sure that the following conditions are satisfied when using this DTC confirmation procedure.
- Intake air temp.: -14 °C, 6.8 °F or higher
- Altitude (barometric pressure): 2020 m, 6650 ft or less (540 mmHg, 72 kPa or more)

1. With ignition switch turned OFF, connect scan tool.
2. Turn ON ignition switch and clear DTC using scan tool.
3. Start engine and warm up to normal operating temperature.
4. Run engine at idle speed for 3 min. or more.
5. Check DTC and pending DTC.


Step 1 - 5:




Step 6 - 8:




DTC Troubleshooting