Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 20, Problem 10ASRQ
When the headlights are switched from low beam to high beam, all headlights go out: Technician A says that the problem may be a bad dimmer switch. Technician B says that the ignition switch may be bad. Who is correct?
- Technician A
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Chapter 20 Solutions
Automotive Technology
Ch. 20 - What lighting systems are controlled by the...Ch. 20 - What is a CHMSL?Ch. 20 - How many wires are normally connected to a double...Ch. 20 - What are the most probable causes for one low-beam...Ch. 20 - Why do some manufacturers protect the headlamp...Ch. 20 - What types of headlights do not have a filament?Ch. 20 - What is the primary tool used to diagnose an auto...Ch. 20 - True or False? HID lamps produce more heat and...Ch. 20 - True or False? The headlights on many adaptive...Ch. 20 - True or False? All turn signal flasher units...
Ch. 20 - Which of the following may cause the turn signal...Ch. 20 - Circuits that can energize the high beams even if...Ch. 20 - Which of the following would probably not cause...Ch. 20 - The stoplight switch is normally mounted on the...Ch. 20 - Which of the following is not a true statement...Ch. 20 - While troubleshooting a headlight problem:...Ch. 20 - Technician A says that the condition of the...Ch. 20 - Composite headlights are being discussed:...Ch. 20 - While troubleshooting a brake light problem;...Ch. 20 - Technician A says that a composite headlight...Ch. 20 - While diagnosing an HID lamp that does not turn...Ch. 20 - Technician A says that flickering vehicle lights...Ch. 20 - The turn signals operate in the left direction...Ch. 20 - The right back-up lamp is dim: Technician A says...Ch. 20 - When the headlights are switched from low beam to...
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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
- While troubleshooting a headlight problem: Technician A says that when one headlamp does not work, the problem may be a burned-out bulb or lamp. Technician B says that you should check for voltage at the bulb before replacing a bulb. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhich of the following would probably not cause the headlights on both sides of the vehicle not to work? An open in the power or ground circuit A bad (control) switch A blown fuse Low generator outputarrow_forwardTrue or False? The headlights on many adaptive head light systems can swivel up to 5 degrees in the direction the vehicle is turning.arrow_forward
- Technician A says that reverse lamp switches are activated at the transmission/transaxle by the gearshift lever. Technician B says that reverse lamp switches are activated by a sensor at the input shaft. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardIn El systems using one ignition coil for every two cylinders: Technician A says that two plugs fire at the same time with the same voltage used by each spark plug. Technician B says that one plug fires in the normal direction (center to side electrode) and the other in reversed polarity (side to center). Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardThe turn signals operate in the left direction only; Technician A says that the flasher unit is bad. Technician B says that the fuse is probably blown. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- The front passenger power window motor goes down but not back up. Technician A says a faulty power window relay is the cause. Technician B says the passenger window switch may be the cause. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardWhile discussing ignition systems: Technician A says that an ignition system must supply high-voltage surges to the spark plugs. Technician B says that the system must maintain the spark long enough to burn all of the air-fuel mixture in the cylinder. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardTechnician A says that flickering vehicle lights can be caused by a circuit breaker that is kicking in and out due to a short. Technician B says that flickering vehicle lights can be caused by a loose electrical connection. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- Technician A says that a sealed-beam headlight that is cracked should be replaced. Technician B says that cracking or breaking of the composite housing or lens does not prevent a halogen bulb from working. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardThe right back-up lamp is dim: Technician A says that the back-up lamp switch may have high resistance. Technician B says that the back-up lamp fuse may have corroded terminals. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhile checking for conditions that might cause coolant electrolysis: Technician A places the positive lead of a voltmeter into the coolant and connects the negative lead to a ground. Technician B checks for the presence of voltage in the coolant with the ignition off. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
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