Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 24, Problem 8ASRQ
Technician A says that the enable criteria are the criteria that must be met before the PCM completes a monitor test. Technician B says that a drive cycle includes operating the vehicle under specific conditions so that a monitor test can be completed. Who is correct?
- Technician A
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Describe the 4 distinct modes the vehicle should be operated in during a road test when diagnosing final drive problem
While discussing throttle-by-wire systems: Technician A says that a spring on the throttle shaft provides the limp-home feature. Technician B says that most systems have redundant processors and the TP and accelerator pedal sensors send redundant input signals. Who is correct?A. Tech A
B. Tech B
C. Both A and B
D. Neither A nor B
A customer comes in with an indirect TPMS, complaining that despite all the tires running low on pressure, the TPMS light never came on. Technician A says it’s likely due to a faulty module. Technician B says it may just be normal operation of an indirect TPMS. Who is correct?
Technician A
Technician B
Both Technician A and B
Neither Technician A or B
Chapter 24 Solutions
Automotive Technology
Ch. 24 - Describe the difference between an open- and a...Ch. 24 - Explain the use and importance of system strategy...Ch. 24 - Describe an OBD II warm-up cycle.Ch. 24 - Explain the trip and drive cycle in an OBD II...Ch. 24 - Describe how engine misfire is detected in an OBD...Ch. 24 - Describe the purpose of having both upstream and...Ch. 24 - Briefly describe the monitors in an OBD II system.Ch. 24 - Type B engine misfires are excessive if the...Ch. 24 - The monitor system checks the action of the can...Ch. 24 - The monitor system has a(n) and test to check the...
Ch. 24 - The fuel monitor checks fuel trim and fuel trim.Ch. 24 - Which sensor is used for misfire monitoring on OBD...Ch. 24 - Which of the following statements is not true?...Ch. 24 - A computer is capable of doing all of the...Ch. 24 - Which of the following memory circuits is used to...Ch. 24 - Technician A says that the oxygen sensor provides...Ch. 24 - While discussing OBD II systems: Technician A says...Ch. 24 - While discussing the catalyst efficiency monitor:...Ch. 24 - While discussing monitoring systems: Technician A...Ch. 24 - While discussing the comprehensive monitoring...Ch. 24 - Prob. 6ASRQCh. 24 - While discussing diagnostic procedures: Technician...Ch. 24 - Technician A says that the enable criteria are the...Ch. 24 - While discussing PCM monitor tests: Technician A...Ch. 24 - While discussing the misfire monitor: Technician A...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Technician A says that if a drive belt does not have the proper tension, it may produce squealing and chirping noises. Technician B says belt tension should be checked even if the engine has an automatic belt tensioner. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile diagnosing a cruise control system that does not turn on: Technician A checks the vehicle speed sensor and its input to the control module. Technician B checks the operation of the brake lights. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile discussing ways to determine if a pilot bushing is faulty: Technician A says that if it operated quietly, it does not need to be replaced. Technician B says that a careful inspection of the transmissions input shaft can determine the condition of the pilot bushing. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
- Technician A says that each ABS has its own diagnostic procedure involving use of the brake and antilock warning lamps, special testers, breakout boxes, scan tools, troubleshooting charts, and wiring diagrams. Technician B says that ABSs vary in the number of codes they can store and whether they will retain the code in memory when the ignition is turned off. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardWhile discussing AWD systems: Technician A says that some systems are electronically controlled and use an electromagnetic clutch to engage and disengage the drive axles. Technician B says that some cars do not use a transfer case, but they are equipped with a third differential unit. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhile discussing how to test a Hall-effect crankshaft position sensor: Technician A says that a logic probe can be used. Technician B says that a DMM can be used. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
- While discussing injector testing: Technician A says that a defective injector may cause cylinder misfiring at idle speed. Technician B says that restricted injector tips may result in acceleration stumbles. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardWhile discussing automatic AWD systems: Technician A says that the systems operate in 2WD nearly all of the time. Technician B says that on many systems, when the PCM receives inputs from the CAN bus, it indicates that wheel slippage power is sent to the other drive axle. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhile discussing the fail-safe function: Technician A says that the 4WS indicator light is illuminated during the fail-safe function. Technician B says that the rear wheels steer normally when the 4WS control unit enters the fail-safe mode. Who is correct?arrow_forward
- describe four distinct modes the vehicle should be operated in during a road test when diagnosis final drive problems(Automotive)arrow_forwardWhile discussing the possible causes for damage to the surface of a pressure plate.Technician A says a worn clutch disc can score the surface. Technician B saysinsufficient pedal free travel can cause it to overheat. Who is correct?a. Technician Ac. Both A and Bb. Technician Bd. Neither A nor Barrow_forwardTechnician A says that a seized shift linkage may cause the transfer case to operate only in 4WD. Technician B says that a worn and loose linkage may cause a transfer case to operate only in 2WD. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Automotive Technology: A Systems Approach (MindTa...Mechanical EngineeringISBN:9781133612315Author:Jack Erjavec, Rob ThompsonPublisher:Cengage LearningAutomotive TechnologyMechanical EngineeringISBN:9781337794213Author:ERJAVEC, Jack.Publisher:Cengage,
Automotive Technology: A Systems Approach (MindTa...
Mechanical Engineering
ISBN:9781133612315
Author:Jack Erjavec, Rob Thompson
Publisher:Cengage Learning
Automotive Technology
Mechanical Engineering
ISBN:9781337794213
Author:ERJAVEC, Jack.
Publisher:Cengage,
Power Transmission; Author: Terry Brown Mechanical Engineering;https://www.youtube.com/watch?v=YVm4LNVp1vA;License: Standard Youtube License