## Frequent Vehicle Error Codes

### P0420 Emissions Control Malfunction

– Common Causes:

Exhaust leaks [1]

– Recommended Fixes:

Repair exhaust system https://carautorepair.site/

### P0171 System Too Lean

– Likely Problems:

Fuel delivery problems

– Diagnostic Steps:

Inspect injectors [1][7]

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## Car Maintenance Terms

### Electronic Braking System

– Function: Enables safe braking [7]

### ECM/ECU (Engine Control Module)

– Responsibility: Controls ignition timing [7]

### Transmission System Parts

– Includes: Drive axles [7]

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## Service Procedure Stages

1. **Problem Identification**:

Conduct road test

2. **Component Testing**:

Test continuity

3. **Parts Replacement**:

Use OEM parts

4. **System Validation**:

Test drive vehicle

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## Necessary Equipment

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

|—|—|—|

| OBD-II Tool | Innova | Retrieve DTCs |

| Physical Equipment | Multimeter | Component repair |

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## Service Information References

### Vehicle Service Database

– Features:

Component locations [8]

Technical illustrations

### Digital Assistants

– Vehicle Service App:

ECU pinouts [5]

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## Affordable Maintenance Advice

– Preventative service prevents major failures

– Master code scanning to prevent mechanic overselling

– Install quality alternatives when budget constrained [7]