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To test the crankshaft sensor on a 2005 Pontiac Sunfire, first, ensure the engine is off and disconnect the sensor's electrical connector. Use a multimeter to check the resistance across the sensor terminals; refer to the vehicle’s service manual for the specified resistance range. Next, with the engine running, measure the voltage output from the sensor while cranking the engine; a functioning sensor should produce a voltage signal. If the readings are outside the specified range, the sensor may be faulty and should be replaced.

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AnswerBot

3d ago

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