Automotive Diagnostics and Repair
Unit Outlines

Automotive Diagnostics And Repair

AI Generated Intermediate 40 hours 10 topics

Learning Objectives

5 objectives
  • Understand the fundamental principles and importance of automotive diagnostics.
  • Identify and explain the major vehicle systems and their common issues.
  • Use diagnostic tools and interpret diagnostic trouble codes effectively.
  • Perform basic vehicle inspections and troubleshoot common automotive problems.
  • Analyze engine and electrical system performance and carry out brake system diagnostics.

Content Outline

Preview

Unit 2152: Automotive Diagnostics

1. Introduction to Automotive Diagnostics

  • Definition and purpose of automotive diagnostics
  • Importance of accurate diagnostics in vehicle maintenance and repair
  • Overview of diagnostic methods and approaches

2. Understanding Vehicle Systems

2.1 Engine System

  • Components and function
  • Common engine issues (e.g., misfires, overheating)

2.2 Transmission System

  • Types of transmissions
  • Common problems (e.g., slipping gears, delayed shifting)

2.3 Brake System

  • Brake types and components
  • Symptoms of brake problems

2.4 Electrical System

  • Battery, alternator, starter, wiring
  • Common electrical faults

3. Diagnostic Tools and Equipment

  • Scan tools: types and functionalities
  • Multimeters and their use in diagnostics
  • Specialized diagnostic software and interfaces
  • Safety considerations when using diagnostic tools

4. Reading and Interpreting Diagnostic Codes

  • Understanding onboard computer systems (OBD-I and OBD-II)
  • Types of Diagnostic Trouble Codes (DTCs)
  • Procedures for retrieving and interpreting codes
  • Using codes to pinpoint vehicle issues

5. Performing Basic Inspections

  • Visual inspections: what to look for
  • Fluid checks: oil, coolant, brake fluid, transmission fluid
  • Checking belts, hoses, and filters
  • Documenting inspection findings

6. Troubleshooting Common Automotive Issues

  • Engine problems: poor acceleration, rough idling, stalling
  • Transmission issues: slipping, hard shifts
  • Brake problems: squealing, spongy pedal, fluid leaks
  • Electrical faults: battery failure, blown fuses, sensor malfunctions
  • Systematic troubleshooting approach

7. Engine Performance Analysis

  • Diagnostic tests for engine performance
  • Using scan tools to monitor engine parameters
  • Techniques for identifying causes of poor performance
  • Case studies/examples

8. Electrical System Diagnostics

  • Testing battery health and alternator output
  • Diagnosing starter issues
  • Inspecting wiring harnesses and connectors
  • Identifying and repairing faulty sensors and switches

9. Brake System Diagnosis and Repair

  • Identifying brake system symptoms
  • Inspecting brake pads, discs, drums, and fluid levels
  • Diagnosing hydraulic issues
  • Performing repairs and replacements
  • Safety protocols during brake repairs

10. Preventative Maintenance and Inspections

  • Importance of preventative maintenance
  • Developing maintenance schedules
  • Routine inspections to prevent failures
  • Record keeping and customer communication
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Quick Information

Unit Automotive Diagnostics And Repair
Difficulty Intermediate
Duration40 hours
Topics10
CreatedJul 20, 2026
GeneratedJul 20, 2026 12:45

Prerequisites

  • Basic understanding of automotive terminology
  • Fundamental mechanical skills
  • Basic electrical knowledge

Recommended Resources

  • Automotive Technology: Principles, Diagnosis, and Service by James D. Halderman
  • OBD-II & Electronic Engine Management by Mandy Concepcion
  • Automotive Diagnostic Systems: Understanding OBD I & OBD II by Keith McCord
  • Manufacturer service manuals and wiring diagrams
  • Diagnostic scan tools (e.g., OBD-II scanner, multimeter)

Unit Topics

10
Introduction to Automotive Diagnostics
An overview of the key principles and methods used in automotive diagnostics, including the importan...
Understanding Vehicle Systems
A breakdown of the major systems in a vehicle, such as the engine, transmission, brakes, and electri...
Diagnostic Tools and Equipment
An exploration of the various tools and equipment used in automotive diagnostics, including scan too...
Reading and Interpreting Diagnostic Codes
Guidance on how to read and interpret diagnostic trouble codes (DTCs) generated by the vehicle's onb...
Performing Basic Inspections
Step-by-step instructions on how to conduct visual inspections, fluid checks, and other basic diagno...
Troubleshooting Common Automotive Issues
A comprehensive look at common automotive problems and their potential causes, along with troublesho...
Engine Performance Analysis
In-depth analysis of engine performance issues, including diagnosing poor acceleration, rough idling...
Electrical System Diagnostics
An examination of electrical system components, such as the battery, alternator, and starter, and ho...
Brake System Diagnosis and Repair
Detailed instructions on diagnosing brake system problems, such as squealing brakes, spongy brake pe...
Preventative Maintenance and Inspections
Guidance on developing a preventative maintenance schedule and conducting regular inspections to cat...