Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 22, Problem 4ASRQ
Technician A says that multiplexing is a way to add wires without increasing the weight of the vehicle. Technician B says that multiplexing uses bus data links. Who is correct?
- Technician A
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Chapter 22 Solutions
Automotive Technology
Ch. 22 - Explain the three types of memory used in the...Ch. 22 - Signals resemble a square pattern.Ch. 22 - Signals can have varying voltage levels.Ch. 22 - Means that data concerning the effects of the...Ch. 22 - The type of memory' that contains specific...Ch. 22 - A is the simplest type of semiconductor.Ch. 22 - Prob. 7SACh. 22 - Prob. 8SACh. 22 - How should vou test a diode with a multimeter?Ch. 22 - What is the name of the module that allows the...
Ch. 22 - What is the major difference between ROM and RAM...Ch. 22 - True or False? In a high-speed CAN system, a...Ch. 22 - True or False? In a high-speed CAN system, a...Ch. 22 - Which of the following is not made of...Ch. 22 - Which of the following is a basic function of a...Ch. 22 - Prob. 1ASRQCh. 22 - While checking an A/C compressor clutch coil...Ch. 22 - Technician A says that some types of voltage...Ch. 22 - Technician A says that multiplexing is a way to...Ch. 22 - Technician A says that when a diode is placed in a...Ch. 22 - Prob. 6ASRQCh. 22 - While discussing multiplex system protocols:...Ch. 22 - Prob. 8ASRQCh. 22 - While diagnosing a network communication failure:...Ch. 22 - Prob. 10ASRQ
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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_forwardWhile discussing multiplex system protocols: Technician A says that CAN communications are based on variable pulse widths carried on a single bus wire. Technician B says that Class B communications offer real-time communications over a twisted pair of wires. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhen working on a high-voltage system, it is best to keep anyone who is not part of the service away from you and the car by creating a buffer zone around the car. Technician A makes sure the outside edges of the zone are at least one foot away from the car. Technician B places orange cones to define the outer boundaries of the zone. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
- While discussing electrical grounds: Technician A says that a component may be grounded through its mounting to a major metal part. Technician B says that some components must be grounded by connecting its positive terminal to a metal section of the frame. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTechnician A says that before a battery is removed, a memory' saver ought to be installed. Technician B says that before a battery is removed, the positive cable should be disconnected and the area around the battery should be cleaned. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile diagnosing a network communication failure: Technician A checks for communication codes in the problem network. Technician B checks for DTCs in all networks and modules. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
- While diagnosing an electronic control system: Technician A turns the ignition off before disconnecting a connector or component. Technician B uses a jumper wire to bypass a potentially faulty sensor and then observes the scan tool. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTechnician A says that the waveform produced by an AC generator after rectification is called a sine wave. Technician B says that the waveform produced by the AC generator after the output moves through the diodes is a straight line because it is a constant DC voltage. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile measuring the resistance of a wire with an ohmmeter: Technician A says that if low resistance is shown on the meter, the wire is shorted. Technician B says that if no resistance is measured, the wire is shorted. Who is correct? Technician A Technician B Both A and B d. Neither A nor Barrow_forward
- Technician A says that the suspension switch must be turned off before raising any corner of a car with an electronic air suspension. Technician B says that the ignition switch must not be turned on while any corner of a car with electronic air suspension is raised. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardList five things a driver of a BEV can do to extend the driving range of the vehicle.arrow_forwardWhile diagnosing the location of a wire-to-wire short: Technician A checks the wiring of the affected circuits for signs of burned insulation and melted conductors. Technician B checks common connectors shared by the two affected circuits. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
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