Pontiac Repair: 2000 oldsmobile alero, oldsmobile alero, 2000 oldsmobile alero

Question
number 47 on the fuse box the ERLS keeps blowing what is this fuse and what could it be shorting?

Answer
Hi Stephanie:

wel depending on what engine is in this car it could be for either heated oxygen sensors in the exhaust system or the vent valve or purge vlave for the evap system. Does it blow every time you start the car up cold? or is it an intermittant thing when it blows. If it blows on a key on cold I would suspect one of the heated oxygen sensors. If it's a 4 cylinder only the rear one is heated. if it's intermittant I would suspect either one of the evap valves or a rubbed thru wire against ground. good luck :-}