Question

1996 Jeep Cherokee Country 4.0L, what is the engine code P0043?

Answer 1

Hi there

This code is for the heater circuit low for O2 sensor 3. This is the rear most sensor in the exhaust and in most cases replacing the sensor will resolve the problem.

Answer 2

P0043 - HO2S Heater Control Circuit Low Bank 1 Sensor 3

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