## Frequent Vehicle Error Codes

### P0420 Catalytic Converter Issue

– Common Causes:

Exhaust leaks [1]

– Common Solutions:

Repair exhaust system https://carautorepair.site/

### P0171 Fuel Mixture Imbalance

– Potential Issues:

Vacuum leaks

– Troubleshooting Process:

Smoke test intake [1][7]

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## Vehicle Service Vocabulary

### Electronic Braking System

– Function: Prevents wheel lockup [7]

### Engine Management Unit

– Role: Controls ignition timing [7]

### Transmission System Parts

– Contains: Transmission [7]

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## Mechanical Fixing Workflow

1. **Symptom Assessment**:

Perform visual inspection

2. **Component Testing**:

Measure resistance

3. **Parts Replacement**:

Use OEM parts

4. **Final Quality Check**:

Confirm warning light reset

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## Necessary Equipment

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

|—|—|—|

| OBD-II Tool | BlueDriver | Live data streaming |

| Physical Equipment | Multimeter | Component repair |

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## Service Information References

### Mechanical Information System

– Capabilities:

Wiring diagrams [8]

OEM specifications

### Mobile Applications

– Vehicle Service App:

ECU pinouts [5]

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## Cost-Saving Tips

– Preventative service extends vehicle life

– Learn basic diagnostics to avoid unnecessary repairs

– Install quality alternatives when budget constrained [7]