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P0475, P1690 Codes and Test of WGC Solenoid
This is an update to my earlier post about the SES light. I drove the truck a couple times with the AE software running and all I got was the SES light and P0475 code after it warmed up. Soooo, I unhooked all the sensors for the Edge w/Attitude controller as I thought it might be bad and plugged in the stock connectors. I checked each one and all were clean w/o oil or water.
Started the truck this morning and SES light came on almost immediately and the bad idle started with code P1690. Some searching found that this is the WGC Solenoid and I found a troubleshooting page to test. With key on, I have 12.5 volts at the pin of the connector. I then checked for a short to ground, but all is okay. I checked the resistance of the solenoid and according to specs it is supposed to be > 50 ohms and mine read about 5 to 5.5. I tried different scales on the meter and it stays at 5 or so.
I am thinking this means a new WGC solenoid? Any input would be a great help.