Download 06 Chevy Silverado O2 Sensor Wiring Diagram
Pictures. If your chevy silverado is racking up miles, you might notice a significant decrease in fuel economy and engine power. Each one has a specific job to do, and in this section, we'll take a brief look at those job descriptions.
Those codes state the the sensors you just put in show no activity, so either there is a wiring problem with the o2 sensor circuits or the sensors you bought are bad. When the upstream chevy silverado oxygen sensor goes out in your truck, you'll see a warning light turn on. I modified the above diagram (the second one).
What exactly does that mean?
According to this diagram, the ratio test should be done on connectors 3 and 4. Please let me know if its ok? A controller area network (can) connects the pcm to the o2 sensor wiring harness. According to the chrysler wiring diagram, the front has the same colors, so see if they are in real life and you can match them up.