Confirmation Driving Pattern
WARNING: This page is about a different variant/trim than selected.
- If using an intelligent tester: Connect the intelligent tester to the DLC3 (Procedure "A").
- If not using an intelligent tester: Connect oscilloscope tester probes to terminals OX1A (front Heated Oxygen [HO2] sensor: Sensor 1), OX1B (rear HO2 sensor: Sensor 2) and E1 of the ECM connector (Procedure "B").
- Start the engine (Procedure "C").
- Warm up the engine with all the accessories switched OFF until the engine coolant temperature stabilizes (Procedure "D").
- Run the engine at an engine speed of between 2,500 rpm and 3,000 rpm for approximately 3 minutes (Procedure "E").
- Check that the waveform of the OX1B (rear HO2 sensor) signal (Procedure "F").
HINT:
If there is still a malfunction in the system, the OX1B waveform may become similar to the OX1A waveform shown in the diagram below.