Knowledge of Removing and Replacing Light Vehicle Electrical Units and Components


Unit Reference Number:     T/601/3731

Learning OutcomesAssessment Criteria
1Understand light vehicle electrical and electronic principles1.1Identify electrical symbols and units found in light vehicle circuits
1.2Describe how to interpret simple light vehicle wiring diagrams
1.3Describe the operation of key light vehicle circuit protection devices and why these are necessary
1.4Describe earthing principles and earthing methods
1.5Identify the use of different cables and connectors used in light vehicle circuits
1.6Describe the operation of electrical and electronic sensors and actuators and their application
1.7Describe the key electrical and electronic control principles that are related to light vehicle electrical circuits
1.8State common terms used in light vehicle electrical circuits
2Understand how light vehicle batteries, starting and charging systems operate2.1Identify light vehicle batteries, starting and charging system components
2.2Describe the construction and operation of light vehicle batteries, starting and charging system components
2.3Describe how to remove and replace batteries, starting and charging system units and components
2.4Compare light vehicle batteries, starting and charging system components and assemblies against alternatives to identify differences in construction and operation
2.5State common terms used in conjunction with light vehicle batteries, starting and charging systems
3Understand how light vehicle auxiliary electrical systems operate3.1Identify light vehicle auxiliary system components
3.2Describe the construction and operation of light vehicle auxiliary systems Auxiliary systems to include:

a. lighting
b. wiper
c. security and alarm
d. comfort and convenience
e. information and entertainment
f. telephone and two-way communication
g. electric window
h. monitoring and instrumentation

3.3Compare key light vehicle auxiliary system components and assemblies against alternatives to identify differences in construction and operation
3.4State common terms used in light vehicle auxiliary system design
4Understand how to check, replace and test light vehicle electrical systems and components4.1Describe how to remove and replace light vehicle electrical system units and components
4.2Describe common types of testing methods used to check the operation of light vehicle electrical systems and components and their purpose
4.3Explain how to test and evaluate the performance of replacement units against specifications
4.4. Identify common faults found in light vehicle electrical systems and components