P0136

Wiring Diagram:

CIRCUIT DESCRIPTION
Refer to Heater Operation of HO2S-1.

Detecting Condition / Possible Cause:

DTC CONFIRMATION PROCEDURE

WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and a tester, on a level road.




1. Turn ignition switch OFF.
Clear DTC with ignition switch ON, check vehicle and environmental condition for:
- Indication of fuel level meter in combination meter: 1/4 or more (For 1999 MY)
- Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
- Ambient temp.: -10 °C, 14 °F or higher
- Intake air temp.: 70 °C, 158 °F or lower
- No exhaust gas leakage and loose connection

2. Warm up engine to normal operating temperature.
3. Drive vehicle under usual driving condition for 5 min. and check HO2S-2 output voltage and "short term fuel trim" with "Data List" mode on scan tool, and write it down.
4. Stop vehicle (don't turn ignition switch OFF).
5. Increase vehicle speed to higher than 20 mph, 32 kph and then stop vehicle.
6. Repeat above steps (5) 4 times.
7. Increase vehicle speed to about 50 mph (80 kph ) in 3rd gear or 2 range.
8. Release accelerator pedal and with engine brake applied, keep vehicle coasting (fuel cut condition) for 1O sec. or more.
9. Stop vehicle (don't turn ignition switch OFF) and run engine at idle for 2 min.
After this step 9., if "Oxygen Sensor Monitoring TEST COMPLETED" is displayed in "READINESS TESTS" mode and DTC is not displayed in 'DTC" mode, confirmation test is completed.
If "TEST NOT COMPLTD" is still being displayed, proceed to next step 10).
10. Drive vehicle under usual driving condition for 10 min. (or vehicle is at a stop and run engine at idle for 10 min. or longer)
11. Stop vehicle (don't turn ignition switch OFF). Confirm test results according to "Test Result Confirmation Flow Table" .

Inspection (Steps 1 - 5):