This is Module 7 for Quarter 1 of the Special Program in Technical Vocational Education (SPTVE) 10, Automotive Servicing NC II. It belongs to the unit Testing and Repairing Wiring/Lighting System, and its lesson is Lesson 7: Explaining automotive lighting system and its functions. It was written for Grade 10 learners as a self-learning module for home study. After it, learners can name, explain, and label the parts of a vehicle’s lighting system.
What learners will learn
The module is for Quarter 1, Week 7. It covers the competency LO 2: Explain Automotive Lighting System and its Functions (code SPTVE_IAAUS9-12TRW-IIIc-d-10). After the module, learners are expected to:
- familiarize and explain the different components of the lighting system;
- label the different components of the lighting system; and
- recognize and value the importance of the different lighting systems.
Why a vehicle needs a lighting system
The module explains that lighting lets the driver see the road and lets other drivers see the vehicle. This helps prevent accidents, especially at night. The lights are fixed on the front, sides, and rear of the vehicle. They have three functions:
- They light the way so the driver can drive safely in the dark.
- They make the vehicle more visible.
- They act as warning signals, so other motorists can tell the car’s presence, position, size, speed, and direction.
The two classes of lighting
Exterior lights
These are outside the vehicle. They help road users notice the vehicle and understand what the driver plans to do.
| Light | What it does |
|---|---|
| Headlight | The main light. It lights the road ahead at night and gives high beam, low beam, and bi-pass. |
| Turn signal (directional) light | Shows that the driver will turn or move right or left. |
| Park light | A small, low-powered light used at dawn, at dusk, or in bad weather when headlights are not yet needed. |
| Side marker light | On the front and rear sides. It shows the vehicle’s length and width. |
| Fog light | Shines down to light the road beneath the fog. It supports the low beams. |
| Brake (stop) light | A red light that turns on when the brakes are applied. |
| Tail light | A red light that shows the rear edge of the vehicle. It is dimmer than the brake light. |
| Back-up (reverse) light | A white light that turns on when the transmission is in reverse. |
| License plate light | Lights up the rear license plate. |
| Hazard light | All turn signals flash together in an emergency or when the car has stopped or stalled. |
The module also describes the two types of headlight. A sealed beam headlight has no separate bulb, so the whole assembly is the bulb; it is common in old vehicles. A semi-sealed beam headlight lets you replace just the bulb; it is common in modern vehicles. The headlamp switch turns the headlight on and off, and the dimmer switch changes it from high to low beam. The horn, which warns or communicates with other drivers, is discussed alongside the hazard light.
Interior lights
These are inside the vehicle:
- Instrument panel lights light up the gauges and indicators that tell the driver about the vehicle’s condition.
- Dome light helps passengers and the driver get in and out. It is common in passenger utility vehicles.
- Courtesy light turns on by itself when a door is opened.
Electrical components of the lighting system
- Flasher relay: makes the signal and hazard lights flash. When it is damaged, the lights will not flash or stay lit steadily.
- Hazard switch: lets the driver flash all signal lights together.
- Brake/stop light switch: usually mounted on the brake pedal.
- Back-up light switch: closes the light circuit when the transmission is shifted into reverse.
- Bosch relay: switches high-power devices and takes load off the control switches.
- Combination switch: one switch on the steering column for wipers, washer, turn signals, and headlights.
- Horn switch: sounds the horn.
- Fuses: protect the wiring and electrical equipment.
Safety reminders
Before any electrical work, the module asks learners to have safe tools, equipment, and materials; body and eye protection when needed; good ventilation; and awareness of violence and stress-related incidents in the workplace. Before testing or repairing lights, check the battery connections and look for damaged wires, loose connections, and wrong routing. Always use the correct lamp type and size. The module also notes that driving with even one failed light has a penalty.
How to use this module
- Learners: Answer the 15-item pretest (What I Know) first, then go through the parts in order: a short Ohm’s law review, a picture discussion, the lesson, an activity naming eight electrical components, a reflection, labeling the lights on a vehicle, the 15-item post-assessment, and an additional activity on safety. Write all answers on a separate sheet, check them honestly with the answer key at the back, and return the module to your teacher when done.
- Parents and guardians: Help your child follow the order of the parts and remind them not to write on the module.
- Teachers and facilitators: Orient learners on using the module, track their progress, and let parents know the same procedure.
Frequently asked questions
What grade and quarter is this module for?
It is for Grade 10 SPTVE Automotive Servicing NC II, Quarter 1, Module 7, scheduled for Week 7.
What competency does the module cover?
It covers LO 2: Explain Automotive Lighting System and its Functions, with the printed code SPTVE_IAAUS9-12TRW-IIIc-d-10.
What are the two classes of automotive lighting?
Exterior lights, such as headlights, signal, brake, tail, and back-up lights, and interior lights, such as instrument panel, dome, and courtesy lights.
What is the difference between a tail light and a brake light?
Both are red lights at the rear, but the tail light shows the rear edge of the vehicle while the brake light turns on when the brakes are applied. The module notes that tail lights are dimmer than brake lights.
Does the module have an answer key?
Yes. The answer key at the back covers the pretest, the activities, and the post-assessment.
Full text of the module
The text below is a transcription of the PDF above, as printed.
Special Program in Technical Vocational Education
Quarter 1 – Module 7 Testing and Repairing Wiring/Lighting System (Explaining automotive lighting system and its functions)
Automotive Servicing NC II
10
[illustration: teacher and students at a desk with a globe, a lamp, and children reading outdoors under a tree]
Special Program in Technical Vocational Education
Quarter 1 – Module 7 Testing and Repairing Wiring/Lighting System (Explaining automotive lighting system and its functions)
Automotive Servicing NC II
10
IA-Automotive Servicing – Grade 10 Alternative Delivery Mode Quarter 1 – Module 7: Testing and Repairing Wiring/ Lighting System (Explaining automotive lighting system and its functions)
Republic Act 8293, section 176 states that: No copyright shall subsist in any work of the Government of the Philippines. However, prior approval of the government agency or office wherein the work is created shall be necessary for exploitation of such work for profit. Such agency or office may, among other things, impose as a condition the payment of royalties.
Borrowed materials (i.e., songs, stories, poems, pictures, photos, brand names, trademarks, etc.) included in this module are owned by their respective copyright holders. Every effort has been exerted to locate and seek permission to use these materials from their respective copyright owners. The publisher and authors do not represent nor claim ownership over them.
Published by the Department of Education Secretary: Leonor Magtolis Briones Undersecretary: Diosdado M. San Antonio
Development Team of the Module
Writer: Aldrin T. Bongsian & Pablo B. Mariacos Editors: Reviewer: Jonalyn C. Ambrona
Illustrator: Layout Artist: Management Team: Estela Leon-Cariño Carmel F. Meris Rosita C. Agnasi Federico P. Martin Christopher C. Benigno Juliet C. Sannad Mary Jane N. Malihod Armi Victoria Fiangaan Brenda M. Cariño
Printed in the Philippines by:
Department of Education – Cordillera Administrative Region
Office Address: Wangal, La Trinidad, Benguet Telefax: (074) -422 -4074 E-mail Address: car@deped.gov.ph
Introductory Message
This Self-Learning Module (SLM) is prepared so that you, our dear learners, can continue your studies and learn while at home. Activities, questions, directions, exercises, and discussions are carefully stated for you to understand each lesson.
Each SLMS is composed of different parts. Each part shall guide you step-by-step as you discover and understand the lesson prepared for you.
Pre-tests are provided to measure your prior knowledge on lessons in each SLM. This will tell you if you need to proceed on completing this module or if you need to ask your facilitator or your teacher’s assistance for better understanding of the lesson. At the end of each module, you need to answer the post-test to self-check your learning. Answer keys are provided for each activity and test. We trust that you will be honest in using these.
In addition to the material in the main text, Notes to the Teacher are also provided to our facilitators and parents for strategies and reminders on how they can best help you on your home-based learning.
Please use this module with care. Do not put unnecessary marks on any part of this SLM. Use a separate sheet of paper in answering the exercises and test. And read the instructions carefully before performing each task.
If you have questions in using this SLM or any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator.
Thank you.
Notes to the Teacher
This contains helpful tips or strategies that will help you in guiding the learner.
For the facilitator:
Hi, as a facilitator you are expected to orient the learners on how to use this module. You also need to keep track of the learners’ progress while allowing them to manage their own learning. Kindly, advise the learner’s parents or guardians of the same procedure since they will be the primary supporters in the learners’ progress. Please, do not forget to remind the learner to use separate sheets in answering all of the activities found in the learning module.
For the learner:
Hello learner, Welcome to the Automotive Servicing NC II Alternative Delivery Mode (ADM) Module on Testing and Repairing Wiring/Lighting System (Explain Automotive Lighting System and its Functions). I hope you are ready to progress in
your Grade 10 SPTVE in Automotive with this learning module. This is designed to provide you with interactive tasks to further develop the desired learning competencies prescribed in our curriculum. With this, you are expected to appreciate staking through the information and activity given.
This module has the following parts and corresponding icons:
| ICON | LABEL | DETAIL |
|---|---|---|
| What I Need to Know | This contains the learning objectives which you need to accomplish. | |
| What I Know | This evaluates what you know about the lesson you are to learn. | |
| What’s In | This connects the current lesson with a topic necessary in your understanding. | |
| What’s New | This introduces the lesson through an activity. | |
| What Is It | This contains a brief discussion of the learning module lesson. | |
| What’s More | These are activities to check your understanding of the lesson. | |
| What I Have Learned | This summarizes the important ideas presented in the lesson. | |
| What I Can Do | This is a real-life application of what you have learned. | |
| Assessment | This is a post assessment of what you have learned. | |
| Additional Activity | This is an activity that will strengthen your knowledge about the lesson. |
At the end of this module you will also find:
| References | This is a list of all sources used in developing this module. |
|---|---|
| Answer Sheet | This is where you will write your answers. |
TABLE OF CONTENTS
What I Need to Know …. 1 What I Know …. 2 What’s In …. 3 What’s New …. 4 What Is It …. 5 What’s More …. 17 What I Have Learned …. 18 What I Can Do …. 18 Post-Assessment …. 19 Additional Activity …. 21 Answer Key …. 22 References …. 22
Lesson 7: Explaining automotive lighting system and its functions
The following are some reminders in using this module:
- Use the module with care. Do not put unnecessary mark/s on any part of the module. Use a separate sheet of paper in answering the exercises.
- Don’t forget to answer What I Know before moving on to the other activities included in the module.
- Read the instruction carefully before doing each task.
- Observe honesty and integrity in doing the tasks and checking your answers.
- Finish the task at hand before proceeding to the next.
- Return this module to your teacher/facilitator once you are through with it.
If you encounter any difficulty in answering the tasks in this module, do not hesitate to consult your teacher or facilitator. Always bear in mind that you are not alone.
We hope that through this material, you will experience meaningful learning and gain deep understanding of the relevant competencies. You can do it!
What I Need to Know
This module was designed and written to guide you to acquire the learning competencies and develop your skills in Explaining the Function of Ignition System Components in IA- Automotive Servicing. The scope of this module permits it to be used in many different learning situations. The language used recognizes the diverse vocabulary level of students. The lessons are arranged to follow the standard sequence of the course. However, the order in which you read the module can be changed to correspond with the textbook you are now using.
| Quarter/Week | Q1/W7 |
|---|---|
| Learning Competency Code | SPTVE_IAAUS9-12TRW-IIIc-d-10 |
| Learning Competency | LO 2. Explain Automotive Lighting System and its Functions. |
Learning Objectives:
After going through this module, you are expected to:
- familiarize and explain the different components of the lighting system;
- label the different components of the lighting system, and;
- recognize and value the importance of the different lighting system.
What I Know
Pre-Test/Assessment
Multiple choice
Direction: Choose the LETTER of the best answer. Write your answer in the answer sheet.
The exterior lights consist of several components except one.
a. Dome light b. Parking light c. Signal light d. Stop lightThe type of switch that controls the high and low headlamp beam function.
a. Dimmer switch b. Hazard switch c. Signal switch d. Stop light switchThe light that illuminate when the brake pedal is applied.
a. Back-up light b. Hazard light c. Signal light d. Stop lightThe back-up light switch is mounted on the side of the _____.
a. brake pedal b. differential c. engine d. transmissionThe light that flashes from either left or right and is used by the driver when changing lanes.
a. Back-up light b. Head light c. turn signal light d. stop lightLights that are found on __________, are the dome light, instrument light, in the dash board.
a. exterior lights c. side marker lights
b. interior lights d. turn signal lightsA device that is being operated by the brake pedal that switches the stop light ON and OFF.
a. Back-up light switch c. Signal switch
b. Dimmer switch d. Stop light switchPart of a circuit that consumes electrical current.
a. control b. load c. path d. power sourcePart of a circuit that connects the power source to the load so that there is a complete circuit.
a. control b. load c. path d. power sourceThe function of lighting system is to?
a. act as the warning signals
b. enhance the visibility of an automobile.
c. provides illumination for the driver of a vehicle to drive safely in the dark.
d. all of theseThe following are lights located at the rear of the vehicle except one.
a. Headlight b. park light c. plate light d. reverse lightThe following are the lights located on the front of the vehicle except one.
a. hazard light b. head light c. signal light d. stop lightThe other term for brake light.
a. back-up light b. plate light c. reverse light d. stop lightA lighting system component that is directly operated by the driver when light is needed?
a. Flasher relay b. Bosch relay c. Fuses d. SwitchA lighting system component that is used to protect lighting
a. Flasher relay b. Bosch relay c. Fuses d. Switch
What’s In
Directions: Answer what is being ask on the diagram below. Write your answer in the answer sheet.
[chart: diagram; Ohm’s law triangle]
- V (volts), at the top of the triangle
- I (amps), at the lower left
- R (ohms), at the lower right
- Speech bubble 1: “1. What about me?” with “I=” below
- Speech bubble 2: “2. How about me too?” with “R=” below
- Box: “If my formula is V=I x R”
What’s New
Direction: Based on the given picture, explain briefly what is being asked below the picture. Explain your answer in a separate paper.
[photo: old rusted truck with a pole and cables tied to its front]
Assuming that this vehicle can still be driven, do you think this can be driven on highways or is this safe to be used during traffic or even night time?
What Is It
AUTOMOTIVE LIGHTING SYSTEM AND COMPONENTS
[chart: wiring diagram; AUTOMOTIVE LIGHTING SYSTEM AND COMPONENTS]
Labels printed in the diagram: MARKER LIGHT, PARKING LIGHT, HEADLIGHT, BATTERY, INSTRUMENT PANEL LIGHTS, LIGHT SWITCH, HEADLIGHT DIMMER SWITCH, BACKUP LIGHT, LICENSE PLATE LIGHT, TAIL, TURN, AND BRAKE LIGHT, TAIL, BRAKE, AND TURN SIGNAL LIGHT, PARKING LIGHT, MARKER LIGHT, HEADLIGHT, MARKER LIGHT.
Introduction:
Lighting system plays an important role on a vehicle. It enables the driver to see everything that is on the road. Additionally, these lighting system enable other drivers to see other vehicles on the way. It significantly contributes to preventing the occurrences of accidents, especially at night. In other words, lighting system is also about security and communications.
The lighting system of an automobile comprises of various lighting and signaling devices or components fixed in the front, sides, and rear of the vehicle. Automobile lighting system has multiple functions as follows:
- It provides illumination for the driver of a vehicle to drive safely in the dark.
- Automobile lights enhance the visibility of an automobile.
- Automobile lights act as the warning signals. With lights the car’s presence, position, size, speed, and direction are detected by other motorists.
LIGHTING SYSTEM
TWO CLASSIFICATION OF LIGHTING SYSTEM
1. EXTERIOR LIGHTS
Exterior lightings are the lights located outside the vehicle and are used to ensure that road users perceive the presence of the vehicle, recognize a driver’s intentions, and can react accordingly to them.
Typically, these include the headlights, signal lights, hazard warning lights, stoplights, parking lights, tail lights, license plate lights, back up lights, and side marker lights
a. Headlight
It is considered as the main light of the vehicle for it illuminates the way ahead when traveling night time. These lights are really powerful and have reflectors as well. There are three various lights that a headlight provides namely; high beam, low beam and the bi-pass.
Basic Parts of a Headlight
[chart: diagram; Basic Parts of a Headlight]
- Reflector
- Filament
- Prismatic lens
- Shield
- Connector
- Filament
Types of a Headlight
a. Sealed beam headlight- this kind of headlight has no separate lightbulb instead the whole assembly itself is a light bulb. This commonly used in old vehicles.
[photo: sealed beam headlights]
b. Semi-sealed beam type headlight- This type of headlight allows bulb replacement unlike in the sealed beam headlight. Since the bulb alone can be replaced, it is not necessary to replace the whole headlight assembly. This type is commonly used by modern vehicles.
[photo: hand working on the back of a vehicle headlight assembly with wiring connectors]
Headlight Switches
| Headlamp Switch Knob and Shaft- used to switch ON and OFF the headlight. | Dimmer Switch- controls the high to low of the headlight |
|---|---|
| [illustration: headlamp switch knob, shaft, spacer, cover, retainer and dash, with a light switch and rheostat for dimming instrument lights] Headlamp Switch Knob and Shaft- used to switch ON and OFF the headlight. | [illustration: sketch of a dimmer switch] Dimmer Switch- controls the high to low of the headlight |
This type can be seen on old vehicles
[photo: car dashboard interior with a steering column light and turn-signal stalk]
This type is used in modern vehicles.
b. Turn Signal Light
Sometimes called as directional light. The turn signal light is used by the driver to indicate his/her intention of driving either to the right or to the left. A directional signal light switch is used by the driver to operate the right signal lights if his/her intention is to drive to the right, or the left signal lights if he is proceeding to the left.
[chart: diagram; turn signal lever and lights]
- TURN INDICATOR LIGHT
- RIGHT TURN SIGNAL
- TURN-SIGNAL LEVER
- LEFT TURN SIGNAL
Depending on the car manufacturer, the turn signal light switch may be located at the right or left of the steering wheel.
c. Park Light
These are small, low-powered lights traditionally found within either within – or separate to – the headlight assembly. These lights are designed to highlight the extremities of the car at dawn and dusk or in bad weather, when it isn’t dark enough to necessitate use of the headlights.
Park lights are used for warning or signaling the driver ahead about the presence of another vehicle.
[photo: front of a vehicle with headlights on at night]
d. Side-Marker Lights
Side marker lights are illumination devices attached to the front and rear sides of motorized vehicles and trailers. It is used to show the length and width of the vehicle.
[photo: side view of a silver sedan with small marker lights near the wheels]
In long vehicles, side marker light specifically the lights that are installed near the wheels were all color white for it guides the driver in checking the wheels of the vehicle is in good condition.
[photo: rear view of a long truck trailer with red marker lights]
e. Fog Light
Fog lamps are intended to provide an adjunct to the low beams. Because fog hovers close to the ground, the lamps are designed to shine down, illuminating the road beneath the fog.
[photo: two cars driving in fog with fog lamps on, arrows pointing to the lamps]
f. Brake Light
Also called as stop light. The red light attached to the rear of a motor vehicle that lights up when the brakes are applied, serving as a warning to following drivers.
[photo: rear window of a car with a red brake light lit]
g. Tail Light
Tail lights are the lamps, usually covered by a red or translucent body, which are installed at the rear end of an automobile. Tail lights provide a safety aspect of the vehicle. They show the rear edge of the vehicle to allow other drivers to appropriately gauge the size and shape of the car. In addition, they allow other vehicles to see the car in inclement weather such as rain or snow. Tail light and park light has a common switch in a modern vehicle.
[photo: close-up of a car’s red tail light at night]
Note: Tail lights are dimmer than brake lights
h. Back-up Light
Sometimes called as reverse light. Illuminate the back of the car when the transmission is shifted into reverse. It provides extra illumination to allow the driver to see behind the vehicle when backing-up at night and it warns following vehicles that the vehicle is in reverse. Lamps are normally covered by a white transparent body.
[illustration: rear view of a car with its back-up lights lit]
i. License Plate Light
It is used to illuminate the license plate on the rear of vehicle.
[illustration: rear of a car showing two circled lamps and a lens, with arrows indicating how the lens is removed] Lens
j. Hazard Light
Designed to signal following cars that a car has stopped or stalled or has pulled up to the side of the road. It is when all turn signal lights flash together. It is used during emergency situations and accompanied with horn.
[photo: rear of a car with turn signal lights flashing, next to a close-up of a red hazard button]
- Horn
The horn is an electromechanical device consisting of a switch, wiring, and a buzzer which produces noise when activated. It is used to warn or communicate to other drivers. Large trucks often use air horns which sound louder.
[photo: a driver’s hands on a steering wheel, next to a pair of horns]
2.INTERIOR LIGHTS
The interior lights include instrument panel lights, various warning and indicator lights, and courtesy lights that turn on when a car door is opened.
Most vehicles have interior lights that are also called dome lights or courtesy lights. These can be located on the ceiling of the vehicle and illuminate when people enter or exit the car. The lighting normally stays lit until the vehicle is turned on so the passengers can safely fasten their seat belts.
a. Instrument Panel Lights
Lights that are used to illuminate the panel board that houses various gauges and lights which provide the driver with important information about the status of the vehicle.
[photo: instrument panel with gauges and a display; printed labels include “Radio Antenne”, “180 km”, “140 km 25.9 -22.5c”, “P”, “e-tron”, “READY”, “CHARGE”, “EFFICIENCY”, “BOOST”, “MAX”, “OFF”, “POWER”, “1/1”, “1/2”]
b. Dome Light
It is found inside the vehicle so that the passengers or driver could easily get in or out in the vehicle.
[photo: round dome light in a vehicle ceiling] Dome light usually found in the passenger utility vehicle.
c. Courtesy light
A small light in a car that is automatically switched on when one of the doors is opened.
[photo: two courtesy lights set in a vehicle ceiling with a central switch]
ELECTRICAL COMPONENTS USED IN LIGHTING SYSTEM
1. Flasher Relay
[photo: cylindrical flasher relay with printed text on its body]
An automatic-reset circuit breaker used in directional signal and hazard warning circuits. When damaged, signal lights won’t flash or lights steadily.
2. Hazard Switch
[photo: hazard switch with a red triangle symbol]
A device operated by the driver to indicate a vehicular hazard by flashing all signal lights together.
3. Brake/ Stop Light Switch
[chart: diagram; Brake/ Stop Light Switch. Labels: “Push Rod” (partly cut off at top), “stop lamp switch”, “Rubber Bumper”]
The brake light switch is normally mounted on the brake pedal.
4. Back-Up Light Switch
[chart: diagram; Back-Up Light Switch. Labels: “Connector”, “1. Backup light switch”]
The back-up light switch closes the light circuit when the transmission is shifted into reverse, to illuminate the area behind the car.
5. Bosch Relay
[photo: black Bosch relay with four metal terminals]
Bosch relays are used to switch electrical devices featuring high power levels or which are sensitive to voltage loss. Relays relieve the load on control switches and make for small voltage drops with economical conductor cross- sections.
6. Combination Switches
[photo: combination switch assembly with a lever]
Late model vehicles combine switch controls into a single column mounted switch assembly so that the driver has ready access to systems such as windshield wipers and washer, turn signals, and headlights. These are all designed within a single multi-function switch so that the driver is able to keep his hands on the steering wheel during adverse weather or driving condition that would require the use of this system.
7. Horn Switch
[photo: a driver’s hands on a steering wheel]
Operated by the driver to sound the horn.
8. Fuses
[photo: assorted automotive blade fuses and glass tube fuses]
Commonly used fuses in electrical system. Automotive fuses are used to protect the wiring and electrical equipment for vehicles.
OCCUPATIONAL HEALTH AND SAFETY PRACTICES
Safety Measure’s in Repairing Electrical Circuit
Safety is a basic requirement an any job to be done. To this end, each individual is responsible for understanding and applying safety rules, standards, and regulations. In all activities, safety consciousness will help prevent personal injury and damage to property.
Before conducting any electrical related activities, make sure you have the following;
- Safe working tools, equipment, and materials.
- Body and eye protective covering when needed.
- Appropriate ventilation is available at the workplace.
- Take notice of violence and stress-related incidents at the workplace.
The electrical circuit of the vehicle is becoming very complex. There may be over 50 light bulbs and hundreds of feet of wiring in the lighting circuits. The circuits include protectors, switches, lamps, and connectors.
Any failure requires a systematic approach to diagnose, locate, and repair or correct the fault immediately. When performing repairs on the lighting or electrical circuits/systems, the repairs must assure vehicle safety and should meet all the applicable laws. Be sure to use the correct lamp type and size for the application.
Before performing any lighting systems test or repair, check the battery connections. Also be sure that all cable connections are removed. Visually check the wires for damage and insulation, loose connections, and improper routing.
Take Note: Driving a vehicle with even just one lighting system failure has a corresponding penalty so make sure all your lights are working before traveling.
What’s More
Directions: Name the following electrical components mostly used in electrical system. Write your answers in the answer sheet.
| No. | Picture | No. | Picture |
|---|---|---|---|
| 1. | [photo: combination switch lever] | 5. | [photo: hands on a steering wheel] |
| 2. | [photo: assorted automotive fuses] | 6. | [photo: red hazard switch] |
| 3. | [photo: cylindrical flasher relay] | 7. | [chart: diagram; back-up light switch with label “Connector” and an unlabeled green oval] |
| 4. | [photo: black Bosch relay] | 8. | [chart: diagram; brake light switch with label “Rubber Bumper” and an unlabeled green oval] |
What I Have Learned
Directions: Explain your answer in a separate paper.
As a future car owner and a driver in the future, how are you going to rate the importance a vehicle lighting system is based on the following;
- 8-not important,
- 9- least important
- 10- very important?
What I Can Do
Direction: Label the different kinds of lighting system used in a car. Write your answers in the answer sheet.
[photo: front view of a gray utility vehicle with numbered labels 1, 2, 3, and 4 pointing to its front lamps and sides]
[photo: rear view of the same gray utility vehicle with labels “5.”, “6.dim red”, “7.”, and “8. bright red”]
[photo: interior ceiling of a vehicle with a small light fixture indicated by a callout, labeled 9.]
[photo: rear of a vehicle with a red tail light above a license plate reading “TNR,” partly covered, indicated by a callout, labeled 10.]
Post-Assessment
Multiple choice
Direction: Choose the LETTER of the best answer. Write your answer in the answer sheet.
It is considered as the main light of the vehicle for it produces the most powerful light to illuminate the road ahead when travelling at night?
- a. Fog light
- c. Headlight
- b. Hazard light
- d. Park light
A light located below the headlight and is used during foggy condition?
- a. Fog light
- c. Headlight
- b. Hazard light
- d. Park light
It is when all turn signal light flashes together. It is generally used during emergency situations?
- a. Fog light
- c. Headlight
- b. Hazard light
- d. Park light
It used to warn the vehicle ahead of your presence, it is being turned on at dawn or in rainy season instead of using the headlight.
- a. Fog light
- c. Headlight
- b. Hazard light
- d. Park light
A flashing light that is used by the driver when changing lanes?
- a. Directional light
- c. License Plate light
- b. Doom light
- d. Tail light
A light that illuminates the plate number of the vehicle?
- a. Directional light
- c. License Plate light
- b. Doom light
- d. Tail light
The dimmer red light at the rear of the vehicle that is used to warn the vehicle behind of the presence of another vehicle.
- a. Directional light
- c. License Plate light
- b. Doom light
- d. Tail light
A light located inside a vehicle that provides illumination to passengers in a public utility vehicle?
- a. Directional light
- c. License Plate light
- b. Doom light
- d. Tail light
It automatically switches on as the driver depresses the brake pedal.
- a. Back-up light
- c. Courtesy light
- b. Brake/stop light
- d. Side marker light
It automatically switches on as the driver shifted transmission in reverse?
- a. Back-up light
- c. Courtesy light
- b. Brake/stop light
- d. Side marker light
A light located inside the vehicle that switches on when door is opened.
- a. Back-up light
- c. Courtesy light
- b. Brake/stop light
- d. Side marker light
A light located at the front and rear side of the vehicle and is used as indication on how long or wide a vehicle?
- a. Back-up light
- c. Courtesy light
- b. Brake/stop light
- d. Side marker light
A lighting system component that is responsible in the flashing of signal and hazard light?
- a. Bosch relay
- c. Fuses
- b. Flasher relay
- d. Switch
A lighting system component that is directly operated by the driver when light is needed?
- a. Bosch relay
- c. Fuses
- b. Flasher relay
- d. Switch
A lighting system component that is used to protect lighting
- a. Bosch relay
- c. Fuses
- b. Flasher relay
- d. Switch
Additional Activity
Directions: Answer the question. Write your answer in the answer sheet.
What are the things needed and observed when conducting any electrical related activities?
Answer Key
[transcriber’s note: this page is printed upside down; the columns are transcribed below in reading order after rotating the page. Some wrapped labels are ambiguous.]
What I Know
- A
- A
- D
- D
- C
- B
- D
- B
- A
- D
- A
- D
- D
- D
- C
What’s In
- I=V/R
- R=V/I
What’s New
Answers may vary
What’s More
- Combination Switch
- Fuses
- Flasher Relay
- Bosch Relay
- Horn Switch
- Hazard Switch
- Back-up Light Switch
- Stop/Brake Light Switch
What I Have Learned
Answers may vary
What I Can Do
- Fog Light
- Head light
- Park Light
- Signal [?]
- Signal/Hazard Light
- Tail Light
- Back-up/Reverse Light
- Stop/Brake Light
- Doom/Courtesy Light
- License Plate Light
Post Assessment
- C
- A
- B
- D
- A
- C
- D
- B
- B
- A
- C
- D
- B
- D
- C
Additional Activity
- Safe working tools, equipment, and materials.
- Body and eye protective covering when needed.
- Appropriate ventilation is available at the workplace.
- Take notice of violence and stress-related incidents at the workplace.
References
Auto Mechanics Theory and Service by deKryger et.al, Electrical Devises, South-Western Publishing Co.USA 1986
Strengthened Technical – Vocational Education Program (STVEP) – Competency- Based Learning Materials (CBLM)
For inquiries or feedback, please write or call:
Department of Education – Bureau of Learning Resources (DepEd-BLR) Ground Floor, Bonifacio Bldg., DepEd Complex Meralco Avenue, Pasig City, Philippines 1600 Telefax: (632) 8634-1072; 8634-1054; 8631-4985 Email Address: blr.lrqad@deped.gov.ph * blr.lrpd@deped.gov.ph Telefax: (632) 8634-1072; 8634-1054; 8631-4985 Email Address: blr.lrqad@deped.gov.ph * blr.lrpd@deped.gov.ph
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