Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 23, Problem 6MC
When diagnosing a vacuum/
- the brake switch
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A vehicle with a direct TPMS is brought into a shop with all sensors failing to read any pressure at all. Technician A says it’s likely that all 4 sensors died at once. Technician B says it may be due to a damaged or faulty TPMS antenna. Who is correct?
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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?
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Chapter 23 Solutions
Automotive Technology
Ch. 23 - Prob. 1SACh. 23 - Describe telematics.Ch. 23 - What could be the problem when the vehicles dome...Ch. 23 - What should be checked if none of the grids in a...Ch. 23 - What component in a wiper system makes it possible...Ch. 23 - Name the two most common problems that occur with...Ch. 23 - True or False? Rain-sensitive wiper systems...Ch. 23 - Prob. 2TFCh. 23 - Prob. 1MCCh. 23 - Rear defrosters generally have a relay with a...
Ch. 23 - Prob. 3MCCh. 23 - The front passenger power window motor goes down...Ch. 23 - Which of the following parts or circuits could...Ch. 23 - When diagnosing a vacuum/mechanical cruise control...Ch. 23 - Prob. 7MCCh. 23 - Prob. 1ASRQCh. 23 - Prob. 2ASRQCh. 23 - Prob. 3ASRQCh. 23 - The reasons for slower than normal wiper operation...Ch. 23 - Prob. 5ASRQCh. 23 - Technician A says that some antitheft systems...Ch. 23 - The circuit breaker at a power seat motor...Ch. 23 - Prob. 8ASRQCh. 23 - 9. Technician A says that navigational systems...Ch. 23 - While diagnosing a cruise control system that does...
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- While 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_forwardWhich of the following statements about the SRS warning lamp is not true? When the ignition is first turned on, the indicator should turn on and remain on for approximately 6 seconds. If the system seems to be able to work correctly, the lamp will stay lit as the engine runs. If the lamp flashes or turns off and then turns on again, low source voltage may be indicated. A system problem is indicated when the lamp does not turn on when the ignition is initially turned on.arrow_forwardBesides indicating ABS faults for some systems, the red brake warning lamp on the instrument panel can indicate failure of the brake system, application of the brake, or low fluid level in the.arrow_forward
- A digital speedometer constantly reads 0 mph: Technician A says that the problem may be the vehicle speed sensor. Technician B says that the problem may be the throttle position sensor. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTechnician A says that some antitheft systems sound an alarm if someone enters the vehicle without a key Technician B says that some antitheft devices prevent the engine from starting. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardTrue or False: A change in the differential of a control will always change the range of the control.arrow_forward
- 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_forwardTechnician 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_forwardWhich of the following would NOT be cause for rejection when checking the power steering system? System does not work or any hoses are chafed. Any visible leaks (lines, hoses, steering box, rack and pinion, & hydro-boost if equipped). Power steering belt(s) are missing, loose, frayed, or bind or contact other objects. A clamp holding down a power steering line or hose is missing.arrow_forward
- Technician a says that the malfunction of the ABS can cause the control module to shut off or inhibited the system technician B says the loss of the hydraulic fluid or power booster pressure disables to antilock brake system who is correctarrow_forwardTrue or False? Rain-sensitive wiper systems respond to the weight of the water on the windshield to regulate the speed of the wipers.arrow_forwardWhat is the name for the gas-filled pressure chamberthat is part of the antilock braking system’s pump andmotor assembly?a. Control moduleb. Accumulatorc. Sensord. Reservoirarrow_forward
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