Larry - thank you. The auxillary water pump? Is that the electric motor "thing" by the windshield washer fluid container?

I have never had much success with testing electrical equipment. Another dumb question - do you check the unit while on the car with the ignition on, or does the engine have to be running?

If it is drawing more that 1.3 amps, could the CCU already be fried? It has been acting strange for some time. Never does it continually, just intermittently. Have just lived with it and figured will have to replace unit in the future.

Thanks again for the reply - RMF