P2096

DTC P2096 / P2097

DTC Detecting Condition and Trouble Area






DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

- Be sure to troubleshoot first unexpected DTCs previously detected in "DTC Confirmation Procedure".
- Confirm that the following conditions are met in this "DTC Confirmation Procedure".

- DTC P0102, P0103, P0131, P0132, P0137, P0138, P0171, P0172 or P2237 is not detected.

1) Connect scan tool with ignition mode of keyless push start system in "OFF".
2) Warm up engine to normal operating temperature.
3) Drive vehicle at 100 km/h (62 mile/h) for 10 min.

DTC Troubleshooting

1.
Was "Engine and Emission Control System Check" performed?
YES -
Go to Step 2.
NO -
Go to Engine and Emission Control System Check Engine and Emission Control System Check.

2. HO2S signal check

Confirm that ignition mode of keyless push start system is in "OFF".
Connect scan tool.
Warm up engine to normal operating temperature and keep it at 2,000 rpm. for 60 sec.
Repeat racing engine (Depress and release accelerator pedal 5 to 6 times repeatedly to enrich and lean A/F mixture).
Check for HO2S output voltage displayed on scan tool.

Does HO2S output voltage indicates approx. 0 V for a few seconds, then approx. 0.7 V?
YES -
Intermittent trouble.
Check for intermittent. Intermittent Connection and Poor Contact Inspection
NO -
Go to Step 3.

3. Intake system and exhaust system for leakage check

Check intake system and exhaust system for leakage.

Are intake system and exhaust system in good condition?
YES -
Go to Step 4.
NO -
Repair or replace defective parts.

4. Fuel injectors and its circuit check

Check each fuel injectors and its circuit. Fuel System Inspection

Is check result satisfactory?
YES -
Go to Step 5.
NO -
Repair or replace defective fuel injector or wire harness

5. HO2S heater check

Check heater resistance of HO2S. Service and Repair

Is HO2S heater in good condition?
YES -
Go to Step 6.
NO -
Replace HO2S.

6. A/F sensor check

Check for A/F sensor. A/F Sensor On-Vehicle Inspection

Is check result satisfactory?
YES -
Go to Step 7.
NO -
Replace A/F sensor.

7. Engine mechanical systems check

Check engine mechanical systems.
- Engine compression: Testing and Inspection
- Valve clearance: Service and Repair
- Intake and exhaust valve: Valve and Valve Guide Inspection
- Valve timing: Camshaft and Tappet Removal and Installation

Are check result satisfactory?
YES -
Go to Step 8.
NO -
Repair or replace defective parts.

8. DTC recheck

Replace HO2S. Service and Repair
Perform DTC confirmation procedure and check DTC.

Is DTC P2096 and P2097 still detected?
YES -
Replace ECM and recheck DTC. Service and Repair
NO -
End.