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Originally Posted by Arthur Dalton
Correct wiring is white wires are heater circuit and they are direct connect back to ECU.
You are looking for 1.2-2.2 A draw, so an amp meter in series will be the test.
My suspect would be the heater connector plug under the passenger side rug.. check it for good connection and dirt..this will also be easy access for test point.
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I have a similar situation MIL lamp is on.
I Scanned for code and was provided with PO161 - (o2 sensar heater circuit malfunction) the sensor I am told is bank 2 sensor 2.
Freeze frames mode shows for bank 2 -3.9 short term and .8 long term..
The car cleared the cel itself..
What is my next step.
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