P2195

DTC P2195 / P2196

DTC Detecting Condition and Trouble Area






Wiring Diagram

Refer to P0031 DTC P0031 / P0032.

DTC Confirmation Procedure

NOTE:

If DTCs other than aimed DTC are previously detected in DTC confirmation procedure, be sure to troubleshoot DTC previously detected.

1) Warm up engine to normal operating temperature.
2) Drive vehicle at 50 - 60 km/h (31 - 37 mile/h) (engine speed: 1,500 - 3,000 rpm) for 3 min. (Keep throttle valve opening constantly in this step.)

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.

2. DTC check

Is there any DTC(s) other than P2195 and P2196?
YES
Go to troubleshooting for applicable DTC.
NO
Go to Step 3.

3. A/F sensor signal circuit check

Turn OFF ignition switch and disconnect connectors from A/F sensor and ECM.
Check for proper terminal connection to A/F sensor and ECM connectors.
Check that A/F sensor signal circuits (A3 - A4) are as follows.
- Wiring harness resistance of each A/F sensor signal circuit is less than 3 ohms.
- Insulation resistance between each A/F sensor signal circuit and vehicle body ground is infinity.
- Insulation resistance of wire harness is infinity between each A/F sensor signal terminal and each terminal at A/F sensor connector.
- Circuit voltage of each A/F sensor signal circuit is 0 - 1 V with ignition switch in ON position.

Are they in good condition?
YES
Go to Step 4.
NO
Repair or replace defective wire harness.

4. DTC recheck

Replace A/F sensor. Air Fuel Ratio (A/F) Sensor Removal and Installation
Perform DTC confirmation procedure and check DTC.

Is DTC P2195 and P2196 still detected?
YES
Substitute a known-good ECM and recheck.
NO
End.