Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 42, Problem 1TF
True or False? On most late-model EAT systems, separate procedures must be followed to retrieve the DTCs from the transmission control system and the TCC system.
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Flash type ADC gives highest conversion rate.
Select one:
O True
O False
The close loop control system is also known as
control system.
ECU
collects and processes signals from O
various engine sensors.
controls the fuel level in the fuel
tank.
O O
controls the engine lubrication. O
controls the engine oil level. O
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Chapter 42 Solutions
Automotive Technology
Ch. 42 - While discussing the CVT transaxie used in Toyota...Ch. 42 - Although computers receive different information...Ch. 42 - What happens if the TCM determines that the...Ch. 42 - Prob. 4SACh. 42 - List five things that could cause incorrect shift...Ch. 42 - Most late-model transmission control systems have...Ch. 42 - What inputs are of prime importance to a computer...Ch. 42 - What are the advantages of using electronic...Ch. 42 - Voltage generation devices are typically used to...Ch. 42 - True or False? On most late-model EAT systems,...
Ch. 42 - True or False? The neutral safety switch and...Ch. 42 - Which of the following is not a voltage-generating...Ch. 42 - A glitch appears in the waveform of a vehicle...Ch. 42 - Prob. 3MCCh. 42 - Which of the following would probably not be...Ch. 42 - Technician A says that some systems use a special...Ch. 42 - Technician A says that shift solenoids direct...Ch. 42 - Technician A says that throttle position is an...Ch. 42 - Technician A says that a faulty TP sensor can...Ch. 42 - Technician A says that some shift solenoids can be...Ch. 42 - An electronically controlled transmission has...Ch. 42 - While discussing transmission adaptive learning:...Ch. 42 - While discussing valve body assemblies in...Ch. 42 - A transmission has delayed upshifts under all...Ch. 42 - While diagnosing the cause of TCC shudder:...
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- True or False? In a high-speed CAN system, a serial data bus is used to allow communication between the various control modules in a vehicle.arrow_forwardMost late-model transmission control systems have adaptive learning. What does this mean?arrow_forwardWhat electronic component is frequently used to phase shift the triac?arrow_forward
- While diagnosing an idle speed problem: Technician A says that higher-than-normal TP signals at idle will cause the IAC to close, which will decrease idle speed. Technician B says that if the resistance of the ECT is too low, a lower-than-normal voltage signal is sent to the PCM, which interprets this as a hot engine and will close the IAC to decrease speed. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwarda) Which type of control system is used in the given block diagram .Write the definition . Potentiometer Stepper to give a voltage signal motor Belt drive for the set Micro- Drive ADC processor circuit value of position Tool Feedback signal Potentiometerarrow_forwardWhile discussing El systems: Technician A says that when the engine is being cranked, the PCM relies only on the signals from the ECT to determine initial ignition timing. Technician B says that when an engine is initially started and is running at a predetermined speed, the PCM looks at several inputs, including engine speed, load, throttle position, and engine coolant temperature, and makes adjustments accordingly. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
- SEÇT A qud FClutquessv veion) (Matitesum pthedblum prt gen (Answe Question 1 A car manufacturing company is in the process of testing a new vehicular transmission system. Figure 1 shows an outline of the system arrangement. As usual, the power generated by the engine is smoothed out by a flywheel at the end of the camshaft. A multi-plate clutch is affixed to the flywheel and transfers power to the main shaft via the layshaft. Engine 23 4 5 R Main Shaft Clutch & flywheel Layshaft Figure 1: Schematic of transmission arrangement The output torque from the engine is given by the expression: 510 + 46 sin 20 Nm, per rotational cycle and spins at an average of 4000 rpm. The attached flywheel has a coefficient of speed fluctuation of 0.15. Assuming a constant load torque requirement, determine: a) The maximum fluctuation of energy and the average power output at the flywheel face. b) The mass moment of inertia of the flywheel. c) The maximum and minimum speeds of the flywheel.arrow_forwardWhat is meant by 'sensor bias voltage' and how is it used in an engine management system? (70 - 100 words)arrow_forwardWrite numerical port designations for a DCV CAVAVA Main supply port Ay Working Port Control Ports A Exhaust Ports Previous Page Next Page Page 6 of 11 Submit Quiz O of 11 questions savedarrow_forward
- Orthographic view of the component using creo softwarearrow_forwardMaster cylinder Check valve HPACHigh Pressure Accumulator) Plunger pump Solenoid valve LPA (Low Pressure Accumulator) RL Wheel Cylinder FR Wheel Cylinder FL Wheel Cylinder RR Wheel Cylinder Figure 2: Hydraulic Control Unit (ABS) Figure 2 above shows the layout of the Antilock Braking System (ABS) Hydraulic Unit during the system is in Normal position. b) What would happen if the ABS system having a fault? Explain why this could happen.arrow_forwardAnswer the following questions on vehicle safety system diagnostic trouble codes (DTCs). Relating to a 2016 ND Mazda MX5 What is U3003:16 the diagnostic trouble code (DTC) for? What system component sets the U3003:16 DTC? What system condition is required to set the U3003:16 DTC? What are the conditions required to run a U3003:16 DTC. Briefly explain the fault symptom(s) associated with the U3003:16 DTC.arrow_forward
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