My son's 2007 Cobalt, 2.2L engine, was howling when driven, so I replaced the two front wheel bearings, which had ABS sensors built in. After installation the ABS and Traction lights remain lit, and the "Service Traction" message is repeating.
I checked the connectors several times and checked the resistance of the new sensors, which were both around 1,500 ohms. I made no other repairs or changes, and don't understand what's wrong. The warning lights remain on, even when stationary. The brake fluid level is fine, and the ebrake is off. There were no error codes in the system using an OBD2 scanner, and the engine is running fine. The check engine light is off. I removed the battery terminal to clear any other error codes, with no change. Any suggestions?