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- Oxygen sensor (front) check (Refer to
).
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Q.
Is the check result normal?
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Replace the oxygen sensor (front).
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(1)Disconnect the connector, and measure at the wiring harness side.
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(3)Check the voltage between the oxygen sensor (front) connector (power supply line)
and body earth. OK: System voltage
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Q.
Is the check result normal?
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![](../../../buttons/03btn002.png)
Repair or replace the connector(s), or check
and repair the harness of short to earth, and open circuit in power supply line between oxygen sensor
(front) connector and engine control relay connector.
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Q.
Is the check result normal?
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Repair the connector(s) or wiring harness.
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Q.
Is the check result normal?
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Repair the connector(s) or wiring harness.
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- Reconfirmation of diagnosis code.
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Q.
Is diagnosis code set?
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Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions).
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