## Typical Automotive DTCs

### P0420 Catalytic Converter Issue

– Common Causes:

Worn catalytic converter [1]

– Recommended Fixes:

Repair exhaust system https://carautorepair.site/

### P0171 Fuel Mixture Imbalance

– Possible Defects:

Fuel delivery problems

– Troubleshooting Process:

Smoke test intake [1][7]

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## Vehicle Service Vocabulary

### ABS (Anti-Lock Brake System)

– Purpose: Prevents wheel lockup [7]

### Vehicle Computer System

– Responsibility: Controls ignition timing [7]

### Drivetrain Components

– Contains: Drive axles [7]

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## Repair Process Steps

1. **Problem Identification**:

Conduct road test

2. **Part Evaluation**:

Test continuity

3. **Defective Unit Swap**:

Follow torque specs

4. **Post-Repair Verification**:

Ensure proper operation

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## Necessary Equipment

| **Tool Type** | **Examples** | **Purpose** |

|—|—|—|

| Diagnostic Scanner | Autel | Live data streaming |

| Hand Instruments | Multimeter | Component repair |

—

## Technical Data Resources

### Mechanical Information System

– Features:

Component locations [8]

OEM specifications

### Digital Assistants

– Vehicle Service App:

Component testing guides [5]

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## Cost-Saving Tips

– Routine checkups prevents major failures

– Learn basic diagnostics to avoid unnecessary repairs

– Install quality alternatives when OEM prices prohibitive [7]