2.
Install Scantool and monitor the "RR OXYGEN SNSR-B2" parameter on the Scantool data list.
1)
Test Condition : Ignition "ON" & Engine "ON" & In Idle("Closed Loop")condition
2)
Specification : Above 0.6V
Warm up the engine to normal operating temperature and check that HO2S signal is active.
Install Scantool and monitor the "RR OXYGEN SNSR-B2" parameter on the Scantool data list.
Test Condition : Ignition "ON" & Engine "ON" & In Idle("Closed Loop")condition
Specification : Above 0.6V
Is "OXYGEN SENSOR(B1/S2)" sensor data near the specification?
YES
Check for intermittent fault. Observe the data parameter for a sudden change while wiggling the wiring and tapping lightly on the suspect component.
Be careful not to damage wires or components during the test.
Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
Test with a new HO2S and check for proper operation. If problem is corrected, replace HO2S sensor and Go to "Verification of Vehicle Repair" procedure
