Technician A says that a break-out box (BOB) used to access the BUS terminals while using a scan tool to activate the modules Technician B says that a typical 38-cavity diagnostic connector as found on many BMW and Mercedes vehicles under the hood. Who is right?
Some hybrid air conditioning systems use an electrically driven compressor that uses a special lubricant. What precaution should be taken when servicing these systems?
Two technicians are discussing a no-start (no-spark) condition. Technician A says that an open pickup coil could be the cause. Technician B says that a defective ignition control module (ICM) could be the cause. Which technician is correct?
Technician A says the signals from the transmission fluid temperature sensor affect the application of the converter clutch. Technician B says at excessive fluid temperature the TCm will command the clutch to unlock. Who is correct?
Shift solenoids are being discussed: Technician A says some solenoids cannot be serviced separately. Technician B says delayed shifts may be caused by open solenoid windings. Who is correct?
Technician Asays the neutral safety switch can apply a ground to the starter relay. Technician B says the neutral safety switch can also control the back-up lights on a vehicle. Who is correct?
There is a special sale on engine oil. If you purchase more than one 12-quart case, you will receive a 5 percent discount. If you purchase six or more cases, you will receive a 10 percent discount. You have two vehicles that require an oil change every 4,000 miles. Vehicle #1 requires eight quarts per oil change plus one additional quart when you also change the oil filter. Vehicle #2 requires five quarts per change plus one quart whenever the filter is changed. Each year your family drives vehicle #1 about 16,000 miles and vehicle #2 about 32,000 miles. You change the oil filter every other time the oil is changed. The normal price for oil is $22.99 per case. Oil filters cost $4.99 each.
How many total quarts will be used by vehicle #2 in one year?
Which of these, commonly designated D2B, is an optical BUS system connecting audio, video, computer and telephone components in a single-ring structure with a speed of up to 5,600,000 bps?
Proton Exchange Membrane (PEM) fuel cells are being discussed. Technician A says the cells combine hydrogen (H2) with oxygen (O2) to create electrical current flow. Technician B says a by product of the fuel cell operation is water. Who is correct?