NEW
Font size
WorksheetsVehicle Wiring Diagrams and Fault Diagnosis Quiz Level 3
Total questions: 15
Worksheet time: 8mins
What is the purpose of a wiring diagram in vehicles?
To display the vehicle's fuel efficiency
To provide a list of vehicle parts
To show the location of wires in a vehicle
To outline the vehicle's maintenance schedule
What does the DIN code '15' represent in a wiring diagram?
Ignition live
Earth
Horn relay
Constant live
Which component uses a constant live from the battery?
Horn switch
Hazard warning lights
Electric windows
Airbag ECU
What is the standard position of the live feed on a wiring diagram?
Right side of the page
Top of the page
Left side of the page
Bottom of the page
What does the abbreviation 'Yel' stand for in wiring diagrams?
Yellow
Red
Green
White
If the horn is not working, which component should be checked first?
Horn relay
Horn fuse
Horn itself
Horn switch
What does the DIN code '31' represent?
Constant live
Horn relay
Ignition live
Earth
Which color wires run from the receiver to the alarm control unit?
White and Green
White and Yellow
Red and Blue
Yellow and Green
What is the DIN code for a constant live?
15
64
31
30
What should be tested if the turn signal relay is not working?
Airbag ECU
Alarm ECU
Horn switch
Wire connection
What is the abbreviation for the color Green in wiring diagrams?
Gry
Gn
Grn
Gr
What is the first step in diagnosing a faulty horn?
Test the horn itself
Check the horn relay
Inspect the airbag ECU
Examine the alarm ECU
What is the purpose of using DIN codes in wiring diagrams?
To allow Technicians in many languages to read them
To simplify the diagrams
To increase vehicle safety
To reduce the number of wires
Which component uses an ignition live?
Airbag squib
Horn switch
Electric windows
Hazard warning lights
What is the abbreviation for the color White in wiring diagrams?
Whe
Wte
Whi
Wht
