The PO135 diagnostic trouble code on a 2005 Chevy Aveo indicates a problem with the heated oxygen sensor (HO2S) circuit for the first sensor, typically located before the catalytic converter. This code suggests that the sensor is not heating up as expected, which can lead to poor engine performance and increased emissions. Common causes include a faulty oxygen sensor, wiring issues, or a blown fuse. It's important to diagnose and address this issue to ensure proper engine operation and emissions control.
In a 2005 Chevy Aveo, the diagnostic port, also known as the OBD-II port, is located under the dashboard on the driver's side. It is typically found near the steering column, just above the pedals. You may need to kneel down to see it clearly, as it is positioned close to the bottom of the dashboard.
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Trouble code P2135 means: Throttle Position Sensor 1-2 Correlation Error
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Trouble code P0562 means:System voltage low
Trouble code P0700 means:Transmission control system malfunction
Trouble code P1133 means: HO2S insufficient switching
The 2005 Chevrolet Aveo OBD 2 port is under driver side dash next to kick panel
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I have a 2004 Aveo with 190,000 miles. I use a name brand synthetic blend 5W30.