P1195

Test 1:

Tests 2 - 5:

Tests 6 - 7:

SYMPTOM
P1195 - 1/1 O2 SENSOR SLOW DURING CATALYST MONITOR

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

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

POSSIBLE CAUSES
- 1/1 O2 sensor ground circuit open
- Engine fluid consumption
- 1/1 O2 sensor connector
- 1/1 O2 sensor
- O2 sensor heater failure
- Exhaust system leaking
- PCM connector