1. Introduction
The HUMZOR NexzCheck NC601 is a new generation, versatile OBD2 diagnostic tool designed for both 12V and 24V gasoline and diesel vehicles. It offers comprehensive diagnostic functions, including reading and clearing fault codes, live data streaming, battery testing, fuel analysis, and smog checks, making vehicle inspection and maintenance easier. This manual provides detailed instructions for its proper use and care.
2. Package Contents
Please check the contents of your package upon receipt:
- 1x HUMZOR NexzCheck NC601 Diagnostic Tool
- 1x Diesel-9 Cable (for J1939 protocol)
- 1x USB Cable
- 1x Host Cable
- 1x Tool Box
3. Product Features
- Wide Vehicle Compatibility: Supports 12V and 24V gasoline and diesel OBD2 Diagnosis protocols.
- Extensive Fault Code Database: Over 50,000 fault code analyses for both car and heavy-duty vehicles.
- Multi-System Support: Supports 92 systems in Light-duty and Heavy-duty vehicles.
- One-Key Functions: Dedicated F1 and F2 buttons for quick access to common functions.
- Multi-Language Interface: Supports English, French, German, Spanish, Russian, Chinese, and Italian.
- Complete OBD2 Diagnostics: Offers a full suite of OBD2 diagnostic capabilities.
- Latest Software/Hardware: Equipped with the newest software and hardware versions for optimal performance.
- Durable Construction: Made from high-quality materials.
- Certified: CE certified.
4. Product Functions
The NC601 provides a wide range of diagnostic and analysis functions:
4.1. General Functions
- Smog Check
- Fuel Analysis
- Battery Analysis
- Live Data
- Freeze Data
- Mode 6 and Mode 8 (for cars)
4.2. Diagnostic Functions
- Read Codes
- Clear Codes
- Live Data
- Freeze Frame
- Mode 6
- Mode 8
- MIL Status (Malfunction Indicator Lamp)
- Vehicle Information
4.3. Analysis Functions
- Battery Analysis
- Smog Check
- Fuel Analysis
- MIL Status Analysis
4.4. Report Functions
- Lookup DTC (Diagnostic Trouble Code)
- Review Data
5. Supported Vehicle Types and Systems
The NC601 supports a broad range of vehicles and systems:
- Cars: Supports Smog Check, Fuel Analysis, Read Codes, Clear Codes, Live Data, Freeze Frame, Mode 6, Mode 8, I/M Readiness, MIL Status, Vehicle Information.
- Light-duty & Heavy-duty Vehicles: Supports Vehicle Information, Read Codes, Clear Codes, Data Stream.
- Other Supported Types: Engine, Electronic, Construction, and Agricultural vehicles.
5.1. NexzCheck 601 Diesel System Type List (J1939)
The device supports 92 systems for heavy-duty vehicles, including but not limited to:
| No. | System Type | No. | System Type | No. | System Type |
|---|---|---|---|---|---|
| 1 | Engine | 25 | Starting system | 49 | Exhaust emission control |
| 2 | Engine value controller | 26 | Tractor bridge | 50 | Vehicle dynamic stability controller |
| 3 | Retarder engine | 27 | Body controller | 51 | Oil quantity sensor |
| 4 | Turbocharger | 28 | Auxiliary valve control | 52 | Information system controller |
| 5 | Transmission | 29 | Power take-off (front or secondary) | 53 | Ramp Control |
| 6 | Transfer | 30 | Close vehicle gateway | 54 | Clutch/converter |
| 7 | Powered Takeoff - (Main or Rear) | 31 | Virtual terminal (in CAB) | 55 | Auxiliary heater |
| 8 | Shaft steering | 32 | Manage Computers | 56 | Chassis controller |
| 9 | Shaft Drive | 33 | Cab display | 57 | Power battery charger |
| 10 | Brake | 34 | Retarder, Exhaust, Engine | 58 | Cellular communication unit |
| 11 | Cruise control | 35 | Distance Controller | 59 | Satellite communication unit |
| 12 | Fuel system | 36 | On board diagnostic unit | 60 | Radio communication unit |
| 13 | Steering controller | 37 | Continuous braking system | 61 | Steering column unit |
| 14 | Suspension | 38 | Hydraulic pump controller | 62 | Fan drive controller |
| 15 | Suspension Stability Controller | 39 | Cab controller | 63 | Seat Control |
| 16 | Pneumatic system controller | 40 | Tire pressure controller | 64 | Parking brake controller |
| 17 | Instrument cluster | 41 | Ignition control module | 65 | Aftertreatment |
| 18 | Driving record | 42 | Seat control | 66 | Safety restraint system |
| 19 | Passenger/operating climate control | 43 | Lighting operator control | 67 | Cab display |
| 20 | Alternator/charging system | 44 | Rear axle steering control | 68 | DPF controller |
| 21 | Pneumatic control | 45 | Water pump controller | 69 | Atmospheric sensor |
| 22 | Vehicle Navigation | 46 | Passenger Operator | 70 | Traction control module |
| 23 | Vehicle safety | 47 | Climate Control | 71 | Power System Manager |
| 24 | Electrical system | 48 | Transfer display |
6. Setup
- Unpack the Device: Carefully remove the NC601 diagnostic tool and all accessories from the tool box.
- Identify the Vehicle's Diagnostic Port: Locate the OBD2 diagnostic port in your vehicle. For most cars, it's typically under the dashboard on the driver's side. For heavy-duty vehicles, it might be a 9-pin J1939 connector.
- Connect the Cable:
- For standard OBD2 vehicles (most cars): Use the Host Cable to connect the NC601 to the vehicle's 16-pin OBD2 port.
- For J1939 heavy-duty vehicles (trucks): Use the Diesel-9 cable to connect the NC601 to the vehicle's 9-pin diagnostic port.
- Power On: Once connected, the NC601 will typically power on automatically from the vehicle's battery. If not, ensure the vehicle's ignition is in the 'ON' position (engine can be off).
7. Operating Instructions
The NC601 features an intuitive menu-driven interface. Use the directional arrow keys (Up, Down, Left, Right) to navigate through menus and the 'OK' button to confirm selections. The F1 and F2 buttons provide quick access to specific functions.
7.1. Main Menu Overview
The main menu typically includes options such as:
- OBDII: For standard OBD2 vehicle diagnostics (cars).
- HD OBD: For heavy-duty vehicle diagnostics (trucks).
- Smog: For emissions readiness checks.
- Fuel: For fuel economy analysis.
- Battery: For battery status testing.
- Lookup: For DTC definitions.
- Review: To view saved data.
- Settings: To configure device preferences.
7.2. OBDII Diagnostics (Cars)
- From the main menu, select 'OBDII'.
- The tool will automatically connect and process the system, displaying the current status (e.g., MIL Status, DTC Count, Monitor Status).
- You can then choose from various functions: Read DTC, Clear DTC, Live Data, Freeze Frame, MIL Status, Vehicle Info, Mode 6, Mode 8, Inspection.
7.3. HD OBD Diagnostics (Trucks)
- From the main menu, select 'HD OBD'.
- The tool will connect to the heavy-duty vehicle's system.
- Available functions include: Vehicle Information, Read Codes, Erase Codes, Data Stream.
7.4. Smog Check
- From the main menu, select 'Smog'.
- Press the F2 button for one-click access to I/M Readiness status.
- Review the displayed information, including MIL Status, Confirmed Trouble Codes, Pending Trouble Codes, and Permanent Trouble Codes, to determine if the vehicle is ready for an emissions test.
7.5. Battery Test
- From the main menu, select 'Battery'.
- The tool will display the current battery voltage and provide a status comment (e.g., "12.3V NORMAL").
7.6. Fuel Analysis
- From the main menu, select 'Fuel'.
- Navigate to 'All Datastream' to view detailed fuel economy data such as instant fuel consumption, idle speed fuel consumption, vehicle speed, air flow rate, and engine RPM.
- You can also select 'View Graphic Items' to see a graphical representation of the data for easier comparison.
7.7. DTC Lookup
- From the main menu, select 'Lookup'.
- Enter the Diagnostic Trouble Code (DTC) using the navigation buttons.
- The tool will display the definition of the entered DTC.
7.8. Review Data
- From the main menu, select 'Review'.
- You can view previously recorded data from the scan tool, including DTC records with time, number, and type.
8. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the NC601 in its original tool box in a dry, cool place when not in use to protect it from dust and physical damage.
- Software Updates: Periodically check the manufacturer's website for software updates to ensure optimal performance and compatibility with the latest vehicle models and protocols.
9. Troubleshooting
- Device does not power on: Ensure the diagnostic cable is securely connected to both the NC601 and the vehicle's diagnostic port. Verify the vehicle's ignition is in the 'ON' position. Check the vehicle's battery for sufficient charge.
- Communication error: Ensure the correct cable is used for your vehicle type (OBD2 Host Cable for cars, Diesel-9 for J1939 trucks). Check for loose connections. Ensure the vehicle's ignition is on.
- Cannot read specific codes/systems: While the NC601 supports a wide range of vehicles and systems, some very specific or proprietary systems might not be fully covered. Ensure your vehicle's make, model, and year are compatible with the tool's listed capabilities.
- DPF Regeneration: The HUMZOR NexzCheck NC601 is primarily a diagnostic code reader. DPF (Diesel Particulate Filter) regeneration is an advanced service function that is not explicitly listed as a supported feature for this model. Please consult the manufacturer's official documentation or support for advanced service functions.
- Compatibility with Chinese Brand Trucks: The tool supports 92 systems in light-duty and heavy-duty vehicles and J1939 protocols, which are common in many trucks globally, including some Chinese brands. However, specific compatibility with every Chinese brand cannot be guaranteed without direct testing or explicit listing by the manufacturer.
10. Specifications
| Attribute | Value |
|---|---|
| Model Name | HUMZOR NC601 |
| Brand Name | YIQIXIN |
| Item Type | Car Truck Diagnostic Tool |
| Hardware Version | Newest |
| Software Version | Newest |
| External Testing Certification | CE |
| Origin | Mainland China |
| Material | High Quality |
| Input Voltage | 12V/24V, 0.15A |
| Dimensions (L x W x T) | 6.7in x 3.9in x 1.1in (approx. 17cm x 9.9cm x 2.8cm) |
| Supported Languages | English, French, German, Spanish, Russian, Chinese, Italian |
11. User Tips
- For heavy-duty vehicles, ensure you are using the correct Diesel-9 cable for J1939 protocol compatibility.
- Always ensure the vehicle's ignition is on when performing diagnostics to ensure proper communication and power to the tool.
- If you encounter an unknown DTC, use the 'Lookup' function to get a quick definition directly on the device.
- The 'Review' function is useful for comparing diagnostic data over time or after repairs.
12. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the official HUMZOR website. Keep your purchase receipt as proof of purchase.
