From the steps, it does not indicate the BCM is bad. The resistance should be below 100 ohms, but did not indicate if it should be open, which you mentioned is infinity, indicating open circuit. For this you should be checking the wiper ON relay control circuit.
If resiatance is 100 ohms or more, the BCM has internal fault, possibly some part is not working correctly due to high resistance.
Go through Step 5 and see if there is any problem.
Saturday, July 31st, 2010 AT 11:04 PM