Assessment 1 - Observation and analysis reports
Task - 1 - Vehicle 1- Assessment Instructions
For this assessment, you are required to analyse and evaluate an electrical or electronic fault in the common rail diesel engine management system of a vehicle based on the scenario provided.
Scenario - A vehicle fitted with common rail diesel engine has multiple complaints. MIL warning light stays on. Fuel filter warning light comes on intermittently. When accelerated vehicle is not responsive and engine is hunting.
1. Identify and confirm work requirement
- Purpose and objective of the analysis
- Collect vehicle information and specification
- Confirm the fault by presenting evidence
- WHS requirements including personal protection needs. identifying hazards and managing risk
2. Prepare for analysis by:
- Establishing standard measures to evaluate the objective
- Following the repair manual and preparing diagnose procedure
- Listing all the required resources such as tools, equipment and material
- Identifying the components for analysing the cause of fault in the common rail diesel engine management system
3. While analysing you should
- Present trouble shoot method according to manufacturer specification to carry out failure analysis
- Present testing procedure used for relevant components following all safety and environmental requirements
- Confirm your findings using reliable process, for instance replacing the faulty component and check if the symptoms still present
- Compare the readings with repair manual
- Analyse the symptoms and provide conclusion and document the process according to workplace requirement
4. After analysing provide repair recommendation by
- Identifying the cause of fault for component failure or system failure
- Provide various possible suggestions to resolve the issue and choose the best possible option after taking into account different variants such as time, cost and available resources. It should be done in compliance with regulatory requirement and Australian design rules.
5. After completing the work
- Validate the work to meet workplace expectations.
- Follow cleaning procedure Including disposal of waste and non-recyclable and collection of recyclable material.
- Check and store all electrical and mechanical tools and equipment upon completion of work in accordance with procedures to handle broken tools
- Report recommendations in the report attached.
Submission should include:
Introduction
Vehicle details
Confirm the fault (visual inspection/pre repair road test/ Freeze frame data)
Order of the task to be performed
List of required resource
Testing procedure of relevant component
Test result and comparison with specification
Conclusion/repair suggestion
Reason for component and/or system failure
Comments
Result
Task - 2 - Vehicle 2 - Assessment Instructions
For this assessment. you are required to analyse and evaluate an electrical or electronic fault in the petrol engine management system of a vehicle based on the scenario provided.
Scenario - A vehicle has multiple complaints as below.
Complaints: MIL light stays on. power loss, rough idle, rattling noise and excessive smoke coming out of exhaust
1. Identity and confirm work requirement
- Purpose and objective of the analysis
- Collect vehicle information and specification
- Confirm the fault by presenting evidence
- WHS requirements including personal protection needs. identifying hazards and managing risk
2. Prepare for analysis by:
- Establishing standard measures to evaluate the objective
- Following the repair manual and preparing diagnose procedure
- Listing all the required resources such as tools, equipment and material
- Identifying the components for analysing the cause of fault in the distributor-less electronic ignition petrol engine management system
3. While analysing you should
- Present trouble shoot method according to manufacturer specification to carry out failure analysis
- Present testing procedure used for relevant components following all safety and environmental requirements
- Confirm your findings using reliable process. for instance replacing the faulty component and check if the symptoms still present
- Compare the readings with repair manual
- Analyse the symptoms and provide conclusion and document the process according to workplace requirement
4. After analysing provide repair recommendation by
- Identifying the cause of fault for component failure or system failure
- Provide various possible suggestions to resolve the issue and choose the best possible option after taking into account different variants such as time, cost and available resources. It should be done in compliance with regulatory requirement and Australian design rules.
5. After completing the work
- Validate the work to meet workplace expectations.
- Follow cleaning procedure including disposal of waste and non-recyclable material. and collection of recyclable material.
- Check and store all electrical and mechanical tools and equipment upon completion of work in accordance with procedures to handle broken tools
Submission should include:
Introduction
Vehicle details
Confirm the fault (visual inspection/pre repair road test/ Freeze frame data)
Order of the task to be performed
List of required resource
Testing procedure of relevant component
Test result and comparison with specification
Conclusion/repair suggestion
Reason for component and/or system failure
Comments
Result
Assessment - 2
Student Instructions:
This is an open book written assessment. Make sure you answer all of the following questions.
• Read each question carefully and speak to your assessor if there is anything you are unsure of or don't understand.
• You will find some of the information in your course text books and may also need to conduct your own research on the internet.
• Ensure you note down any sources such as websites that you accessed to find the relevant information.
• Acknowledge clearly when and how you are drawing on the ideas or phrases of others.
• Read the Acumen Education Plagiarism Policy and Procedure carefully to understand the consequences that you could face if your work has been plagiarized.
• This task is to be completed in your own time, either at home or at Acumen Education. it you don't have internet access at home.
• Speak to your assessor if there is any reason you are unable to complete this task.
• Submit this assessment by the due date given to you by your assessor.1 List safety precautions while working on systems listed below.
2. List the work instructions to be followed below you proceed with the diagnosis of engine management system.
3. Write down diagnostic procedure for the problem given below.
4. Write down 3 common symptoms and diagnostic procedure for bad or tailing Engine control unit.
5. Explain the different types of ignition systems given below and how are they associated with engine management system?
6. Explain the functions, advantages and limitations of following diesel fuel injection system.
• Direct diesel injection system (DI)
• Common rail injection system (CRDI)
7. Briefly describe automotive gateway electronic control unit. What are the advantages and disadvantages of this unit?
8. Explain function, benefits and draw backs for the bus network topology.
9. How does the fuel system work with engine management system in modern light vehicles? What are its benefits and drawbacks?
10. How does electronic automatic transmission sensor output affect the engine performance?
11. How are the sensors and actuators integrated with automotive control computers? Give 2 examples with system chart. Also explain system chart with benefits and limitations.
12. Explain the below provided control signal circuits.
Example:
Wheel speed sensor output signal >>>>>EBD>>>>>Hydraulic Modulator
13. What is the difference between analog signal and digital signal? Give an example (Sensor) of analog and digital signal.
14. Describe the process of checking fuel injector signals by oscilloscope?
15. Explain testing procedure of below listed sensors by digital multimeter.
16. A vehicle's MIL fight stays on. How will a scan tool help to resolve this issue?
17. List diagnostic testing equipments required to analyse engine management system. Write down their functional difference and limitations.
18. Give one example for each of the scan tool diagnostic trouble code conditions given below:
19. How can you diagnose complex faults with the help of scan tool output features given below:
20. According to Australian design rules, mass and power output of the replacement engine should not be more than ____% greater than that of any engine offered by the original manufacturer for that model.