Always follow the manufacturers wiring and terminal repair procedures

Student Book
Written Assessment
AURETR010 Repair wiring harnesses and looms

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	AURETR010 Repair wiring harnesses and looms

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This assessment will ensure that the elements, performance criteria, performance evidence and knowledge evidence

required and conditions are adhered to demonstrate competency in this unit assessment task.

•Your Trainer / Assessor will inform you of the due date for this assessment task.

•Your Assessor will grade as either S – Satisfactory or NS – Not Satisfactory for the assessment. In all cases your

Re-Assessment Conditions

•If the evidence is graded as NS – Not Satisfactory you will be required to re-submit the evidence. In this case, you determine and discuss the reasons for NS – Not satisfactory on any of the criteria and will assess you through a different method of assessment e.g. verbal/oral questioning, problem solving exercises. reassessment fee charged. o Students who are deemed to be Not Yet Competent (NYC) will be provided with information identifying the students will be given a final chance to re-sit the assessment and will be charged a reassessment fee as per AIBT rule. o If the student is found to be plagiarising or cheating again after conclusion of the Intervention meeting with the Course Co-ordinator, the matter will be referred to the Academic Management Committee which frame are identified as early as possible and an intervention strategy is put in place.
AIBT will ensure access to:

	AURETR010 Repair wiring harnesses and looms


Completed written responses to the questions in the assessment task

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evidence and knowledge evidence to confirm that the student evidence submitted demonstrates validity, sufficiency,

authenticity and confirms current skills and knowledge relevant to the unit of competency. Your assessor will be looking

identifying firefighting equipment o safely handling hazardous materials and toxic substances o following

soldering equipment safe operating procedures

-trailer harness

-driving lights harness

connectors, fuse holders or wiring o testing wiring harnesses and looms, including resistance and voltage drop and

circuit performance checks o visual and functional assessments, including:

- frayed wires

- burnt wiring

o determining cable and terminal types and sizes according to circuit current draw

Assessment 1 – Questioning – Written Assessment – AURETR010	Version: 1.0		Created: Feb 2017
Assessment 1 – Questioning – Written Assessment – AURETR010			Page 4 of 19

•	post-repair testing procedures of wiring harnesses and looms, including procedures for checking full operation of associated electrical systems.

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Assessment 1 – Questioning

Written Assessment

1.

2.
	1		Gloves
	2		Safety glasses and shoes
	2		Safety glasses and shoes
	3
	4
	5		Vest and full body suits
	Which fire extinguisher below should you use on electrical fires?
	A.
	B.
	C.
	D.
	Complete the following statement about hazards involved in soldering using the following words.

Words: Check, Cleaners, Flick, Hands, Holder, Insulated, Iron, People, Sensitive, Temperature, Tools, Touch, Treated,

the hot plate. Use utensils such as pliers to place and If using a hot plate for surface mount soldering do not touch
remove printed circuit boards (PCB’s) from the hotplate. If using hot air temperature for soldering, desoldering or rework, do not direct the hot air stream onto yourself or other people. If using an oven allow the
PCB to cool before handling or use utensils. Don’t place hot PCB’s on temperature people surfaces. If burns occur, they should be checked by holding under cold running water for several minutes and assistance sought if burns are severe. Incidents should be reported.

5. Leaded solder contains lead which is a harmful material.

True or False: True

8. Liquid solder flux, may generate a flammable vapour. Keep away from open flames and other sources of ignition.

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AURETR010 Repair wiring harnesses and looms

the flow of solder onto the job.

True or False: True

1 2				wires-make sure disconnect the negative terminal first .
	Make sure that the hot soldering iron does not get in contact with any of the vehicle parts other wise they wil l get
		or burnt.
3 4 5		or burnt.
	Make sure to wear

			you are working in his proper	ventilation	and opening doors and windows .

12. According to the SDS for CIGWELD Comweld 965 Soldering Flux, what container should NOT be used to trap and

following words.

Words: Chemical, Licensed, Neutralise, Material, Recycle, Supplier, Treatment, Waste

soda-lime followed by: burial in a land-fill specificallyliscenced to accept chemical and / or pharmaceutical

wastes or Incineration in a licensed apparatus (after admixture with suitable combustiblematerial).

14. A wiring diagram show the actual position of the part on a vehicle.

True or False: False

	Wire colour Wire size Connector terminal designation Component location on vehicle

16. When diagnosing wiring faults, you should use the electrical schematic diagram to trace the flow of current through

A. Internet

B. Workshop manual (WSM)

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	Power sources, such as a battery Conductors such as copper wires

1. Driving Lamp

2. Brown Wire
3. 30A Fuse
4. Relay
5. Orange Wire
6. Black Wire .

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20. Name the parts of the trailer wiring harness below.

	2 Green Wire
	4 Red Wire
	6 White Wire (Ground)
	8 Yellow Wire
9 Blue Wire ( Electric)	10 Red Wire ( Fused)

21. Name the function of which each wire of the trailer harness.

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AURETR010 Repair wiring harnesses and looms

Wire

	Left turn
White


	Brake
Red

AURETR010 Repair wiring harnesses and looms

1		7 Solid box indicates complete component

2		8 Indicates components is case grounded
3		9 Indicates a body ground

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4		10 Indicates vehicle optional number

5		11 Indicates operating condition of component
6	Indicates inline connector number and
		complete

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Words: Bent, Circuits, Complex, Components, Conduit, Engine, Harnesses, Heat, Joined, Multiple-pin, Nylon, Wire

Most manufacturers use wiring harnesses to reduce the number of loose wires hanging under the hood or dash of an automobile. The wiring harness provides for a safe path for the wires of the vehicle’s lighting, engine, and accessory Components. The wiring harness is made by grouping insulated wires and wrapping them together. The wires are bundled into separate harness assemblies that are joined together by connector plugs. The multiple-pin connector plug may have more than 60 individual wire terminals. There are several complex wiring harnesses in a vehicle, in addition to the simple harnesses. The engine compartment harness and the under-dash harness are examples of complex harnesses. A complex harness serves many circuits, while a simple harness services only a few multiple-pin.Some individual circuit wires may branch out of a complex harness to other areas of the vehicle. Most wiring harnesses use a flexible plastic or mesh circuits conduit to provide for quick wire installation. The Nylon has a seam that can be opened to accommodate the installation or removal of wires from the harness. The seam will close once the wires are installed and will remain closed even if the conduit is bent. In areas around the exhaust manifolds, the wires may be exposed to excessive heat. To protect the wires of the harness, a special heat reflective conduit is typically used

26. The Society of Automotive Engineers (SAE) have classified the different communication protocols by their speed and operation. Which communication protocol below would use shielded coaxial cable?

D. None of these answers are correct

27. Shielded coaxial cable or fibre optics may be used for less noise interference.

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AURETR010 Repair wiring harnesses and looms

circumstances. Sometimes adapters are necessary with probe points such as on military type

connectors	that are water tight

12-volts when the leads are placed on each side of the connector. This indicates that the connector

.

	Is shorted to ground Is open Is good Has current flowing through it

31. A technician is checking a circuit with excessive resistance. The current flow through the circuit should be 10 amps,

C. 6 ohms

D. 60 ohms

connected in parallel with the component being tested. D. All answers are correct.

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33. What faults should you visually inspect for on wiring and component connectors?

Wires:

34. If the wiring insulation was damaged, frayed or burnt, what kind of fault could this cause?

Live wires can cause shorts if they are damaged frayed or burnt

C. Connector terminal designation

D. Component location on vehicle

37. Which source of information will give you the most detail about accessing wiring, removing panels and covers and

removing and replacing components on the vehicle you are working on.

38. You are wiring a vehicle for a trailer hitch. The trailer will have eight parking lamps. Each parking lamp uses a 6-watt

light bulb. What size fuse should be used to supply power for the parking lamp circuit? [Assume that the normal

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True or False: True

40. Complete the following statement about wire replacement using the following words.

small, an unwanted voltage drop can occur. The two factors that should always be considered when determining the

correct size of a wire are the total circuit Amperage and the total length of wire

True or False: True

43. Twists the wire strands of the wire ends together before soldering.

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