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2005 Wrangler Jeep 4.0L with engine code P0057, what is the code meaning?

Vehicle: 2005 Jeep Wrangler 4.0L

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Hi there,

This code is for low voltage on the heater for the O2 sensor, sensor 2. This is the sensor after the catalytic converter. Most of the time the issue is with the sensor itself and replacing it will resolve the issue. Make sure to check the wiring harness for any rubs in the insulation and the harness connector as well.
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P0057 JEEP Code - O2 Sensor 2/2 Heater Circuit Low

Read more: https://www.autocodes.com/p0057_jeep.html

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