Famous 2006 Pontiac G6 Check Engine Light References. Web #1 · apr 30, 2012 recently my traction control light has been turning on and off repeatedly, mostly when i'm on the highway. The service light will usually illuminate if its time for an oil change.
Anyway, today the check engine light came on, so i took it to advance auto to get a reading, but no code came back even after multiple tries. Our technicians tell us that some vehicles may require a powertrain control module (pcm) software update to correct this issue. The last o2 sensor i put in was the one after the cat and its part number is 15543 (bosch brand) the prob in the exhaust pipe is smaller than the stock one.
