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Can you tell me the trouble code p1135 for a 2002 Toyota 4Runner?
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In 2002, the Toyota 4Runner's P1135 trouble code indicates a general issue with the air/fuel sensor heater circuit on bank 1, sensor 1. This code is triggered when the sensor struggles to detect the signal from the heater circuit. Possible reasons for the air/fuel problem include issues with the air/fuel ratio sensor, poor electrical connections, wiring shorts, or a faulty ECM. The first step is to visually inspect all sensor wiring and connections. After that, you can check the sensor for any visible damage. These sensors typically wear out around 50,000 miles, so it's a common problem that can be easily resolved.
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The error code p1135 in a 2005 Toyota 4Runner means there is a problem with the heater circuit of the air/fuel sensor for the first sensor on bank 1.
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