I did the tests in Ch 7.1 of the dealer book and have come to the conclusion (fan provides less than 5ohm resistance) that I need to replace the radiator fan control module.

I called O'Reilly and they couldn't find it, while the dealer said it was dealer-only and cost $407. They quoted part # 5102808.

Has anyone replaced theirs, or have any tips for where to get them cheaper than $407? ...I guess I could try a junkyard?