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I'm by no means a mechanic nor claim to be but, I had the check engine light come on in my 2003 Tacoma - at the same time for a non related issue, I had to replace the battery. By pulling the battery, it removed the power and the check engine light shut off and has not come on since.
I spoke to the dealership regarding and they mentioned that the engine light may not be on, but is still in the memory of the chip and trucks history if it were to be accessed for an inspection or general purposes for the dealership.
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∙ 14y ago
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I found some good reference info on this topic at: http://www.4crawler.com/4x4/O2SensorWireColors.html Accordingly the sensor wire colors for Toyota O2 sensors (from the sensor to the plug) would be as follows Blue = Sensor + White = Sensor - Black = Heater Black = Heater
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I found some good reference info on this topic at: http://www.4crawler.com/4x4/O2SensorWireColors.html Accordingly the sensor wire colors for Toyota O2 sensors (from the sensor to the plug) would be as follows Blue = Sensor + White = Sensor - Black = Heater Black = Heater
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