NEXPEAK K2 Heavy Truck Scanner Diagnostic Tool

1. Introduction

The NEXPEAK K2 is a professional tablet-based diagnostic tool designed for heavy-duty trucks, buses, construction, and agricultural vehicles. It offers comprehensive full system diagnostics and a suite of 10 essential special functions for workshop use. Utilizing the latest technologies, the K2 provides accurate and efficient vehicle analysis.

Figure 1: NEXPEAK K2 Diagnostic Tool

2. Key Features

• Full System Diagnosis: Comprehensive scanning of all major vehicle systems.
• 10 Special Functions: Includes Odometer Adjustment, VIN Modification, PRV Valve Test, ECU Reset, Idle Speed Adjustment, Broken Cylinder Test, ECU Programme, Clear Spec DTC, DPF, and INJECTOR(HD).
• Multi-language Support: Supports 13 languages including English, French, German, Spanish, Portuguese, Polish, Italian, Russian, Chinese, Traditional Chinese, Dutch, Hungarian, and Korean.
• One-click Automatic Free Update: Easy software updates for continuous improvement and expanded vehicle coverage.
• Bluetooth 5.0 Connectivity: Automatic and fast wireless connection to your mobile device.
• 24V Multi-device Diagnosis: Compatible with various 24V heavy-duty vehicles.
• Data Management: Supports data playback, historical data viewing, VIN query, DTC query, and online feedback.
• Remote Control: Allows for remote assistance and operation.
• Diagnostic Report Printing: Ability to print detailed diagnostic reports via a Bluetooth printer.

Figure 2: Full System Diagnostic Capabilities (Engine, ABS, A/C, BMS, Airbag, etc.)

Figure 3: Smart Truck Scanner Features: Online Feedback & Suggestions, Data Record & Playback, Diagnostic Report, Remote Control

3. Specifications

4. Setup & Installation

4.1 Package Contents

• K2 VCI (Vehicle Communication Interface) Unit x 1
• Software Guide Paper x 1
• Product Serial Number Indication x 1
• Packing Small Bag x 1

Figure 4: Package Contents

4.2 Quick Setup Guide

Follow these steps to quickly set up and begin using your NEXPEAK K2 device:

1. Download the NEXPEAK App: Download the official NEXPEAK app from the appropriate app store for your mobile device.
2. Register and Activate: Create an account within the app and activate your device using the provided serial number and activation code.
3. Turn on Vehicle Ignition: Ensure your vehicle's ignition is turned on.
4. Plug in the Device: Connect the K2 VCI unit to your vehicle's OBD port.
5. Auto Connect to Bluetooth: The K2 device will automatically connect to your mobile device via Bluetooth 5.0.
6. Perform Diagnosis: Start the diagnostic process and analyze the generated report.

Figure 5: Visual Quick Setup Guide

4.3 Registration Steps in Detail

To register and log in to the NEXPEAK app:

1. Tap the 'NEXPEAK' app icon and click 'Register' to enter the account registration page.
2. Enter your email address, set up your login password, obtain email verification, and enter it to complete registration.
3. After logging in, click the '+' icon or 'switch/add product' option to add a new product. Enter the product serial number and activation code found on your device or packaging.

Figure 6: NEXPEAK App Registration Steps 1 & 2

Figure 7: NEXPEAK App Product Activation Step 3

5. Operation

5.1 Full System Diagnostic

The NEXPEAK K2 supports full system diagnostics for most trucks, covering a wide range of electronic control units (ECUs) and systems. This includes, but is not limited to:

• Engine Management System (EMS)
• Anti-lock Brake System (ABS)
• Airbag System (SRS)
• Air Conditioning System
• Brake Management System (BMS)
• Gearbox Control System (GMS)
• Tire Pressure Monitoring System (TPMS)
• Lock and Alarm System (LAS)
• After Treatment System
• And many more, as detailed in the vehicle coverage section.

5.2 Special Functions

The K2 offers 10 specialized reset and service functions to assist with various vehicle maintenance and repair tasks. These functions include:

• Odometer Adjustment: For specific brands like JMC, FOTO, JAC, QINGLING, QUANCHAI, ISUZU, DONGFENG, SHANGHAI, YUNNEI, SCANIA.
• VIN Modification: Supported for brands such as DONGFENG, CHANGCHAI, CHAOCHAI, FOTON, HUATAI, JAC, JMC, ISUZU, FAW, NAVECO, QINGLING, QUANCHAI, SHANGCHAI, WEICHAI, WOERFU, XINCHAI, XinChenDongLi, YANGCHAI, YUCHAI, YUNNEI, GWM.
• PRV Valve Test: Applicable to DONGFENG, CHAOCHAI, FOTON, CAMC, JAC, FAW, NAVISTAR, QUANCHAI, SHANGCHAI, WEICHAI, WOERFU, XINCHAI, YANGCHAI, YUCHAI, YUNNEI, SINOTRUK.
• ECU Reset: For DONGFENG, CHANGCHAI, FOTON, HUATAI, JAC, JMC, FAW, NAVECO, QINGLING, QUANCHAI, CHAOCHAI, SHANGCHAI, WEICHAI, WOERFU, XINCHAI, XinChenDongLi, YUCHAI, YUNNEI, GWM.
• Idle Speed Adjustment: Supported for CAMC, SINOTRUK, CHAOCHAI, DONGFENG, FAW, FOTON, JAC, QUANCHAI, SHANGCHAI, WOERFU, WEICHAI, YANGCHAI, YUCHAI, DFRENAULT, YUNNEI, SCANIA.
• Broken Cylinder Test: For DONGFENG, CHANGCHAI, CHAOCHAI, FOTON, CAMC, HUATAI, JAC, JMC, ISUZU, FAW, Huayuanlaidong, NAVISTAR, NAVECO, QINGLING, QUANCHAI, SHANGCHAI, WEICHAI, WOERFU, XINCHAI, XinChenDongLi, YANGCHAI, YUCHAI, YUNNEI, GWM, SINOTRUK, SCANIA.
• ECU Setting: For XINCHAI SET, YUCHAI SET, DFRENAULT SET, WEICHAI SET, CHAOCHAI SET, CUMMINS SET, SHANGCHAI SET, YANGCHAI SET, FOTON SET, JAC SET, QUANCHAI SET, WOERFU SET, DONGFENG SET, YUNNEI SET, CAMC SET.
• Clear Spec DTC: For CAMC(DTC), SINOTRUK(DTC), CHAOCHAI(DTC), DONGFENG(DTC), FAW(DTC), FOTON(DTC), JAC(DTC), JMC(DTC), QUANCHAI(DTC), SHANGCHAI(DTC), WOERFU(DTC), YANGCHAI(DTC), YUCHAI(DTC), YUNNEI(DTC), WEICHAI(DTC), ISUZU(DTC).
• INJECTOR(HD): For DONGFENG, CHAOCHAI, FOTON, JAC, FAW, QUANCHAI, YUCHAI, YUNNEI, JMC, WEICHAI, YANGCHAI, SHANGCHAI, SHANGQI, QINGLING, XINCHAI, CHERY, LaiDong, GONOWAUTO, GWM, XCDL, WOERFU, NAVECO, YITUO, ISUZU, NISSIAN, CHANGCHAI, DACHAIHD.
• DPF(HD): For FAW(DPF), BOSCH(DPF), JAC(DPF), JMC(DPF), ISUZU(DPF), CUMMINS(DPF), FUSO(DPF), SCANIA(DPF).

Figure 8: Special Functions: Odometer Adjustment, VIN Modification, PRV Valve Test, ECU Reset

Figure 9: Special Functions: Idle Speed Adjustment, Broken Cylinder Test, Clear Spec DTC, DPF

Figure 10: Special Functions: ECU Setting, INJECTOR(HD)

6. Vehicle Coverage

The NEXPEAK K2 provides extensive coverage for various heavy-duty vehicle types and brands:

6.1 Truck Brands

TATA, Ashok Leyland, Mahindra, Eicher, Auto Scan (China), BENZ (HD), BENZ (LD), DAF, DEUTZ, MAN, SCANIA, UD, FUSO, HINO, VOLVO, ISUZU, RENUALT, HYUNDAI, IVECO, FORD, MACK, DETROIT, INTERNATIONAL, FREIGHTLINER, KENWORTH, ERF, KIA, PACCAR, DONGFENG, FAW, FAW Hongta, FAW Liute, FAW Lingyuan, SINOTRUCK, Shacman, FOTON, JAC, JMC, QINGLING, C&C Trucks, CAMC, JINGBEI, GUANGQIHINO, HONGYAN, HUATAI, NAVECO, Sichuan Hyundai, ZZNISSAN, AOCHI, BEIBEN, BEIJINGPAI, BOJUN, CHANGZHENG, CHUANJIAO, DATONG, DAYUN, HEIBAO, KAMA, KAIRUILVKA, LIFANJUNMA, NANJUN, SHIDAI, SHIJUN, TANGJUN, YUEJIN, SHIFENG.

6.2 Bus Brands

Toyota BUS, HYUNDAI BUS, KIA BUS, CREDO, KINGLONG, ANKAI, BEIJING BUS, HIGER, SHAOLIN BUS, SUNLONG, YUTONG BUS, YOUYI BUS, FOTON BUS.

6.3 Construction Vehicle Brands

Atlas, CATERPILLAR, Chengdu KOBELCO, Dasin, DOOSAN, Ftlw, FUWA, Fuzhou Sanyuan, HEIMAO, HENGTE, HUANGHE, Kato, CASE, KOMATSU, Liebherr, LISHIDE, LIUGONG, LONGGONG, PENGPU, Hitachi, ISUZU Engineering, SANY, SHANTUI, Sunward, Bobcat, KOBELCO, IHI, SHUNTONG, TEREX, Hyundai Machinery, XGMA, XCMG, Yanmar, YITUO, YUCHAI, YUTONG, Jonyang, Zhenyu, ZOOMLION, ZHONGYOU, Takeuchi, Sumitomo, Zhonglian, SEM Machinery, Kubota, VOLVO, Xinyuan Heavy Industry, Taishan Machinery.

6.4 Agricultural Vehicle Brands

DONGFANGHONG, ISUZU, JINGNING, JOHN DEERE, LONGBENG, MANYUE, RUIKE, XINFENG, YIKONG, BAOLICC, HANGZHOUCC, LANBOWCC, NIULICC, NEW HOLLAND.

6.5 Engine Brands

CAMC Engine, CHANGCHAI, CHAOCHAI, CUMMINS, DACHAI, DELPHI, Dongfengfengshen, Dongfengleinuo, DOOSAN, Hongyanjieshi, Huayuanlaidong, MAXXFORCE, PERKINS, QUANCHAI, SHANGCHAI, SiDaDongLi, WEICHAI, XICHAI, XINCHAI, XinChenDongLi, YANGCHAI, YiQiSiHuan, YUCHAI, NAVISTAR, YUNNEI Power.

6.6 Electronic System Brands

ABS, ALLISON, BENDIX, BOSCH, CBCU, DENSO, FEUP, HENGYANGDTB, NANYUE, SIEMENS, WEITE, ASTRA, CUMMINS, SCR, GAS, MILEAGE, TRANSMISSION, IMMO, ASS, HengYangBeng, Bremach, Truck OBD, Car OBD, DEMO.

Figure 11: Full System Brands List (Truck, Bus, Construction, Agricultural)

Figure 12: Full System Brands List (Engine and Electronic Systems)

Figure 13: Full System Brands List (Construction Vehicles)

Figure 14: Full System Brands List (Agricultural Vehicles)

7. Software & Updates

The NEXPEAK K2 diagnostic tool features a user-friendly software interface and supports one-click free updates to ensure you always have the latest diagnostic capabilities and vehicle coverage.

7.1 Software Page Display

The app's software page allows you to select vehicles, access the main diagnostic menu, and navigate through special functions.

Figure 15: Software Page Display showing vehicle selection and main menu

7.2 One-Click Free Update

Software updates are performed directly within the application with a single click, providing seamless access to new features and expanded vehicle databases.

Figure 16: Software Update Screen

7.3 K2 Plus Upgrade

An optional upgrade is available to combine K2's truck diagnostic capabilities with K1's car diagnostic functions, offering a comprehensive solution for both car and truck diagnostics.

8. Data Management & Reporting

The NEXPEAK K2 provides robust data management features to help users track and analyze diagnostic information.

8.1 Data Functions

• VIN Query: Quickly retrieve Vehicle Identification Number information.
• DTC Query: Look up Diagnostic Trouble Code definitions.
• Online Feedback: Submit feedback or suggestions directly through the app.
• Data Playback: Review previously recorded diagnostic data.
• Historical Data Query: Access and manage past diagnostic sessions.
• Remote Control: Utilize remote assistance features for support.

8.2 Diagnostic Report Printing

You can connect a Bluetooth printer to the NEXPEAK K2 to print detailed diagnostic reports, providing a physical record of vehicle health and repair actions.

Figure 17: Printing a Diagnostic Report

9. Troubleshooting

• Device Not Connecting: Ensure the K2 VCI unit is securely plugged into the vehicle's OBD port and the vehicle's ignition is on. Verify Bluetooth is enabled on your mobile device and the app has permission to use Bluetooth.
• App Not Launching/Crashing: Ensure your mobile device meets the minimum system requirements for the NEXPEAK app. Try restarting the app or your mobile device. Check for available app updates.
• No Communication with Vehicle: Confirm the vehicle's ignition is on. Check if the vehicle model is supported by the K2. Ensure the VCI unit's indicator lights are active.
• Update Issues: Ensure a stable internet connection during software updates. Do not interrupt the update process. If an update fails, try again or contact support.

10. User Tips

• Always ensure your NEXPEAK app and device firmware are up-to-date for the best performance and latest vehicle coverage.
• Before performing any special functions, ensure you understand the procedure and its implications for the vehicle. Consult the vehicle's service manual if necessary.
• Save diagnostic reports regularly, especially before and after repairs, to maintain a comprehensive service history.
• For optimal Bluetooth connection, keep your mobile device within close proximity to the K2 VCI unit.

11. Maintenance

• Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Storage: Store the NEXPEAK K2 in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided packing bag for protection.
• Handling: Avoid dropping the device or subjecting it to strong impacts.

12. Warranty & Support

For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official NEXPEAK website. Ensure you have your product serial number ready when contacting support.

13. Product Video

Watch this video for a visual overview of the NEXPEAK K2 Heavy Truck Diagnostic Tool: