P0131

DTC P0131 / P0132 / P0134 / P2237

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

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 P0031, P0032 or P0134 is not detected (for DTC P0131, P0132 or P2237).
- DTC P0031 or P0032 is not detected (for DTC P0134).

1) Warm up engine to normal operating temperature.
2) Run engine at idle speed for 1 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. DTC check
Is there any DTC(s) other than P0131, P0132, P0134 and P2237?
YES
Go to troubleshooting for applicable DTC.
NO
Go to Step 3.
3. A/F sensor signal circuit check
Confirm that ignition mode of keyless push start system is in "OFF".
Disconnect "C01", "E01" and A/F sensor connectors.
Check for proper terminal connection to "C01", "E01" and A/F sensor connectors.
Check the following points.
Resistance of "A3" and "A4" circuits: less than 1
Resistance between each of "A3" and "A4" circuits and ground: infinity
Resistance between each of "A3" and "A4" circuits terminal and each terminal at A/F sensor connector: infinity
Voltage of "A3" and "A4" circuits: 0 - 1 V (with ignition mode of keyless push start system in "ON")
Are they in good condition?
YES
Go to Step 4.
NO
Repair or replace defective wire harness.
4. DTC recheck
Replace A/F sensor. Service and Repair
Perform DTC confirmation procedure and check DTC.
Is DTC P0131, P0132, P0134 and P2237 still detected?
YES
Replace ECM and recheck DTC. Service and Repair
NO
End.