- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
DTC
| A/F sensor 1
| ECM
| Continuity
|
Bank
| Connector
| Terminal
| Connector
| Terminal
|
P0131
| 1
| F8
| 1
| F102
| 81
| Existed
|
2
| 82
|
P0151
| 2
| F25
| 1
| 85
|
2
| 86
|
- Check the continuity between A/F sensor 1 harness connector or ECM harness connector and ground.
DTC
| A/F sensor 1
| ECM
| Ground
| Continuity
|
Bank
| Connector
| Terminal
| Connector
| Terminal
|
P0131
| 1
| F8
| 1
| F102
| 81
| Ground
| Not existed
|
2
| 82
|
P0151
| 2
| F25
| 1
| 85
|
2
| 86
|
- Also check harness for short to power.
Is the inspection result normal?
YES
>>GO TO 5.
NO
>>Repair open circuit, short to ground or short to power in harness or connectors.