Technician A says that an electric pump assists in delivering warm engine coolant to the passenger compartment when passenger heating is needed but the ICE is in idle stop mode. Technician B says that such auxiliary electrical devices are powered by the 12-volt system. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Question 2
An alternator has zero output. Technician A says that the alternator field circuit may have an open circuit. Technician B says that the fusible link may be open in the alternator to battery wire. Who is right?
A) A only B) B only C) Both A and B D) Neither A nor B
The original Magdeburg hemispheres (lower left) used to demonstrate Otto von Guericke's vacuum
A typical injector-pump-type automotive diesel fuel injection system.
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When the exhaust is rich, the PCM applies a negative current into the pump cell.
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