Monitor Scan Tool Data
- Connect scan tool then Engine "ON"
- Warm up the engine to normal operating temperature.
- Monitor the signal waveform of HO2S (B2S2) with scan tool
Specification: 0.1-0.9V
- Is the HO2S parameter displayed within specifications ?
YES
- Fault is intermittent caused by poor contact in the sensor' s and/or PCM' s connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
NO
- Go to "TERMINAL AND CONNECTOR INSPECTION " procedure