P1196

Test 1:

Tests 2 - 5:

Test 6:

SYMPTOM
P1196-2/1 O2 SENSOR SLOW DURING CATALYST MONITOR

TEST NOTE
This symptom is diagnosed using the test P1195-1/1 O2 SENSOR SLOW DURING CATALYST MONITOR.

WHEN MONITORED
With the engine running, coolant greater than 170 °F, open throttle, steady to slightly increasing vehicle speed greater than 18 mph but less than 55 mph, with a light load on the engine, for a period no less than 5 minutes.

SET CONDITION
The oxygen sensor signal voltage is switching from below 0.39 volt to above 0.6 volts and back fewer times than required.

POSSIBLE CAUSES
- Intermittent condition
- Exhaust leak
- O2 sensor signal circuit voltage drop
- O2 sensor ground circuit voltage drop
- O2 sensor