Light Vehicle Maintenance and Repair Princbles

This assignment is designed to show an understanding of diagnosis and recti?cation of vehicle auxiliary ‘
electrical systems and their units. It also covers the evaluation of performance of the systems.
Assignment:
Select a vehicle from your normal place of work (e.g. college, training centre, or garage workshop). 1’
Select one system from section A and one system from section B:
A. Electric Window B. Heater, Cooling and Air Conditioning l
Electric Mirror Integrated SecurityNVaming 1
V\?per and Washer Lighting )-
Central Locking Supplementary Restraint and Airbag 2
For each of the two selected systems: \

1. Provide a detailed description of the construction and operation.
l
2. Analyse two different typical electrical faults – one for each of the systems chosen. Explain the L
symptoms and causes of the faults.
1
3. Explain the systematic diagnostic techniques used to identify the faults. Include the complete I
process; from initial inspection through to con?rmation of the faults.1O marks ‘
4. Explain the type of diagnostic measurements and readings expected to be found during the process, II. and how these readings would compare to the manufacturers speci?cations.
10 marks (AC 3.6)
~ 5. Explain the recti?cation process to correct the faults; include the selection and preparation of any 1
equipment used, the correction procedure (unit replacement or adjustment) and the evaluation of the 1
repaired system to con?rm performance. 10 marks AC (3.4, 3.6, 3.7)