Bank 1 is the side of the motor with the #1 spark plug wire running to the spark plug. Sensor 1 is the 02 sensor on the pre cat converter located closest to the motor on the exhaust manifold pipe before the converter.
You should check the voltage readings with the Mutt III scanner on all the 02's before condemning them. There may be a factory tech bulletin on that code if my memory is right. I'd go to the dealer.
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Bank 1 is the side of the motor with the #1 spark plug wire running to the spark plug. Sensor 1 is the 02 sensor on the pre cat converter located closest to the motor on the exhaust manifold pipe before the converter.
You should check the voltage readings with the Mutt III scanner on all the 02's before condemning them. There may be a factory tech bulletin on that code if my memory is right. I'd go to the dealer.