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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,289
The heater elements in the WUR and AAR are powered by the rear fuel pump relay so turning the key to on will do nothing to them unless the front and rear fuel pumps run when turning the ignition to on.

By default the fuel pumps should not get power and run until the engine is being cranked over on the starter motor and it sucks in enough air to move the air flow meter sensor plate down a little to trip the switch on the back of the air flow meter housing.

Then depending on the year of the car, four relays.. the yellow relay in back, speed relay under the drivers seat, and the front and rear fuel pump relays become grounded and operational and the factory alarm system has to be happy or removed or else nothing will happen.
Old 10-30-2014, 12:52 PM
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