Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 42, Problem 3SA
What happens if the TCM determines that the signals from the TFT sensor are incorrect?
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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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- What is the correct way to check a coolant temperature sensor?arrow_forwardWhile discussing TP sensor diagnosis: Technician A says that a four-wire TP sensor contains an idle switch. Technician B says that in some applications, the TP sensor mounting bolts may be loosened and the TP sensor housing rotated to adjust the voltage signal with the throttle in the idle position. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhich of the following is a likely cause of a lean condition during acceleration and cruising speeds? a. A defective oxygen sensor b. A defective PCM c. A defective ECT sensor d. A defective MAF sensorarrow_forward
- Describe at least two methods of checking the operation of Hall effect sensors?arrow_forwardWhen an engine is running lean, the voltage signal from the oxygen sensor will be (low or high).arrow_forwardWhen testing a frequency varying MAF: Technician A says that the frequency should increase with an increase in engine speed. Technician B says that when observed on a lab scope, the signal from the sensor should be a square wave. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- A CKP sensor can be checked with all of the following except a(n). a. logic probe b. voltmeter c. ammeter d. lab scopearrow_forwardWhile discussing EGR systems with a differential pressure feedback electronic (DPFE) sensor: Technician A says that the DPFE sensor sends a signal to the PCM in relation to intake manifold pressure. Technician B says that the PCM corrects the EGR flow if the actual flow does not match the requested flow. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhile discussing Hall-effect vehicle speed sensor tests: Technician A says to use an ohmmeter to test the resistance of the coil. Technician B says that the voltage generated by the sensor can be measured by connecting a voltmeter across the sensors terminals. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- Question: What is the best example of passive sensor from the following IMU Sensor Camera Sensor Infrared sensor WSNS Sensors Ultrasonic Sensorarrow_forward3- Contact Type displacement sensors makes direct contact with the object being monitored. Select one: True Falsearrow_forwardIn which type thermocouple sensor, one of the wires is copper? О Ttype O K type N type O J typearrow_forward
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