Disable the ignitionand the fuel injection system

Instructions for Students: Assessment Task1 (AT1): Questioning – Written Assessment

Submission details

performance. It involves confirming the existence of a complex system fault,

choosing the required diagnostic procedure and tools, applying the diagnostic

Procedure (Steps)

Provide answers to the following Knowledge Questions:

Safety hat

read the owner’s manual before lifting the vehicle
check the capacity of hoist
make sure about lifting points are perfectly match with the hoist ends alway use safety stand while working underneath
don't try to lift the vehicle at the maximum height

• Digital voltmeter (DMM)
• Analogue voltmeter
• Oscilloscope
• Scan tool

• What is an Electronic Stability Program system (ESP)?

effectiveness of the converter.

An open loop control device works solely on an input basis, and the output has little effect on the control action.

The current output is considered by a closed loop control device and altered to the desired state. In these systems, the control operation is centred on the performance

• What is a closed loop system?

The current output is considered by a closed loop control device and altered to the desired state. In these systems, the control operation is centred on the performance

offer a list of possible causes of the problem.

• Gather ___good_______ about the problem. Find out when and where the problem __evident_______ and what exactly happens.

• Verify that the ___good_______ exists. Take the vehicle for a road _____happens_____ and try to duplicate the problem, if possible.

causes of the problem by checking the ____symptoms______ or easy-to-

check items.

Never assume that your work solved the _____visual_____ problem.

Make sure the problem is history before returning it to the customer.

To allow someone to feel special/important to someone else.

In the way we want it to go, to lead a dialogue.

• All answers are correct

• Give an example of a closed question?

replies, such as a speech, paragraph or article, could come in the form of a list, a

few phrases or something longer.

In service _____manuel_____, there are ___diagnostic_______ aids given for

many different ____problem______. These are either ___symptoms_______

on a definition of the problem and ___offer_______ a list of possible

_____cases_____ of the problem. Sometimes the diagnostic ___aids_______

• Complete the following statement about multimeters using the following words.

Words: Accuracy, Advanced, Available, Circuits, Current, Digital, Diode, Direct, Display, Electronic, Functions, High, Hundredths, Impedance,

electronic__ circuits or components. Digital meters have _high_________ impedance and can be used on electronic ____circuit______ as well as electrical circuits.

Live Data store and playback.

Data from graphs.

• Complete the following statement about scan tool using the following words.

Words: Activate, Actuators, Always, Computer, Correct, Diagnose, Diagnosing, DTC’s, Procedures, Scan, Management, System

conditions leading up to the vehicle setting a DTC.

• What is a freeze frame?

the inputs and output are snapshotted when fault occur

The first _____mandated_____ of the code is a letter. This defines the system where the code was ____manufacturers______. Currently there are ____modes______ possible first character codes:

P: ___set_______

The third through fifth characters are ____powertrain______. These describe the fault. The third character indicates ____second______ the fault

occurred. The remaining two characters ___sensor_______ the exact _____set_____ that set the code. The numbers are organized so that the ___special_______ codes related to a particular ___sensor_______ or system are grouped together.

voltage signal
• The trigger slope must be set to positive if the trace begins with a rising voltage

Words: Action, Bad, Basically, Beginning, Circuits, Computer, Conditions, Devices, Downward, Energises, Evidence, Frequency, Measured,
Modulated, Noise, Observe, Off, Oscilloscope, Pulse, Shape, Solenoids, Spikes, Test, Turning, Watching, Waveforms, Width

Most computer-controlled ___circuit_______ are ground-controlled circuits. The PCM _____ Energises_____ the actuator by providing the ground. On an ____Oscilloscope______ trace, the on-time pulse is the __Downward________ pulse. On positive-feed circuits, where the __, Computer________ is supplying the voltage to turn a circuit on, the on-time ___Pulse,_______ is the upward pulse. One complete cycle is ___Measured_______ from one on-time pulse to the __Beginning________ of the next on-time pulse.

• Complete the following statement about compression testing using the following words.

Words: Accurate, All, Battery, Button, Comparison, Compression,
Consistent, Cylinders, Four, Fuel, Gauges, Hole, Increase, Install, Observe, Reading, Recorded, Remote, Revolution, Screw-in, Spark, Starter, Test, Warm, Wide-open

unrestricted amount of air to enter the ____Cylinders______ during the test.

system.

crank at ____Consistent______ and normal speeds needed for accurate __Observe________ results.

• Depress the remote starter __________ and observe the gauge’s ___Reading_______ after the first engine ____Revolution,______.

• A wet compression test is performed on an engine after a dry compression test revealed low compression on one cylinder. If the compression on the low cylinder rises, it indicates __________?

following words.

Words: Adapters, Clearances, Contaminated, Faulty, Engine, Gauge, High-pressure, Hose, kPa, Low, Manufacturer’s, Much, Oil, Operating, Pressure, Problems, psi, Reading, Relief, Run, Running, Screen, Sensor, Test, Viscosity,

the ____engine______ block. The ____test______ normally includes the

following steps:

• Observe the gauge _____reading_____ while the engine is

___running_______ at about 1,000 rpm and at 2,500 rpm (or the

___problems_______, a plugged oil pickup _screen_________, weak or broken

oil pressure ____relief______ valve, low oil level, __contaminated________ oil,

__________ indicate that the cylinder will not hold any pressure.

• Make sure the engine is at ____filler______ condition.

• Remove the ____gauge______ cap, oil ____leakage______ cap, dipstick tube, __measure________ filter cover, and all _____operating_____ plugs. • Rotate the ___pressure_______ with a remote starter button so that the piston of the tested cylinder is at ___radiator_______ on its compression stroke. This ensures that the valves of that cylinder are closed.

• What is the difference between “cause” and “effect” as far as a problem is concerned?

The trigger may be an entity, object, circumstance, or occurrence that may result in something, while the consequence is the result of the person's behaviour or the result of a sequence of events that have occurred. 3. Thecausewillin describe why the impact occurred in the first place.

___problem_______. For example: Used a scan tool to retrieve P2102 Throttle Actuator Control Motor Circuit Low diagnostic
___trouble_______ code.

• Why is it very important that the Job Card is completed correctly?

The Job Card becomes a legal document. Service records are kept by

• work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing complex system faults in vehicles, vessels or machinery, including working safely with the systems being tested, including procedures for:
• selecting and using personal protective equipment (PPE)
•
using tools and equipment• types, application and operation of complex systems, including:
• systems that integrates two or more automotive systems
• systems that incorporate three or more mechanical, hydraulic, pneumatic, electrical or electronic sub-systems
• diagnostic procedures for complex systems, including stages within the diagnostic procedure
• methods of gathering information on complex system faults, including customer questioning techniques
• types and applications of diagnostic flow charts
• types, applications, limitations and operation of diagnostic tools, including:
• multimeters
• scan tools, including:
•
diagnosis trouble codes (DTC) and the conditions that caused the code to be set

• live data