What's the 2002 Toyota 4Runner code p1135?

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Ryan S. December 30, 2020
The 2002 Toyota 4Runner code P1135 is listed as a general fault code for the air/fuel sensor heater circuit for bank 1, sensor 1. The code is caused by the sensor having an issue detecting the signal from the heater circuit. Some of the causes for the air/fuel problem is a problem with the air/fuELRatio sensor, poor electrical connection or short in the wiring, or a bad ECM. The firSTStep is to visually check out all the wiring and connections of the sensor. Next, You can check the sensor to see if they having any visual damage. The sensors usually only last for about 50,000 miles so it is a common problem that can be easily fixed.
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Kevin J July 16, 2020
The code p1135 on the 2005 toyota 4runner indicates the air/fuel sensor heater circuit for bank 1 sensor 1 has a fault.
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