THINKCAR THINKSCAN 672 Professional Car Diagnostic Tool User Manual

1. Introduction

The THINKCAR THINKSCAN 672 is a professional all-in-one car diagnostic tool designed for comprehensive vehicle analysis and maintenance. This device offers a wide range of functions including full system diagnostics, 28 special maintenance reset services, active testing (bi-directional control), and full OBD2 functions. It supports the latest CANFD protocol and FCA (AutoAuth) for a broad range of vehicle compatibility.

This manual provides detailed instructions on how to set up, operate, maintain, and troubleshoot your THINKSCAN 672 device to ensure optimal performance and accurate diagnostics.

Figure 1: THINKCAR THINKSCAN 672 Professional Car Diagnostic Tool

2. Setup and Initial Configuration

2.1. Unboxing and Packing List

Carefully unpack your THINKSCAN 672 device and verify that all components are present. The standard package includes:

• 1 x THINKSCAN 672 Diagnostic Tool
• 1 x DB15 Diagnostic Cable
• 1 x 3-in-1 Charger (Type C cable and power adapter)
• 1 x User Manual (this document)
• 1 x Storage Bag

Figure 2: THINKSCAN 672 Package Contents

2.2. Device Overview

Familiarize yourself with the physical components of the THINKSCAN 672:

• 7-inch Touch Screen: Main interface for operation.
• On/Off Button: Powers the device on or off.
• Reset Button: Used for system resets if needed.
• Charging Port/TF Card Slot: For power input and external storage.
• Diagnostic Line Interface: Connects to the DB15 diagnostic cable.
• OBD Interface: Connects to the vehicle's OBD-II port via the diagnostic cable.

Figure 3: THINKSCAN 672 Device Layout

2.3. Initial Power On and Charging

Before first use, ensure the device is fully charged using the provided 3-in-1 charger. Connect the Type C cable to the charging port on the device and the power adapter to a suitable power outlet. The device runs on Android 10 and has a 3150mAh battery.

2.4. Software Updates and Language Selection

The THINKSCAN 672 comes with lifetime free software updates for all functions. Connect the device to Wi-Fi (2.4GHz/5GHz dual band) to download and install the latest diagnostic software. The system supports 28 languages, which can be selected in the device settings.

Figure 4: Language Selection Interface

2.5. Connecting to Vehicle

To begin diagnostics, connect the THINKSCAN 672 to your vehicle:

1. Locate your vehicle's OBD-II port (usually under the dashboard on the driver's side).
2. Connect one end of the DB15 diagnostic cable to the diagnostic line interface on the THINKSCAN 672.
3. Connect the other end of the DB15 diagnostic cable to the vehicle's OBD-II port.
4. Turn on the vehicle's ignition (engine off).
5. Power on the THINKSCAN 672. The device will automatically establish communication with the vehicle.

3. Operating Instructions

3.1. User Interface and Navigation

The THINKSCAN 672 features a new UE and UI design for simpler operation. The 7-inch HD touchscreen allows for intuitive navigation through menus and functions. The main screen typically displays options for Diagnose, Maintenance, Upgrade, and More.

3.2. Auto VIN Scan

The device can automatically identify the vehicle's brand, model, year, and other information, providing quick access to the vehicle's system for diagnostics. Select "AutoSearch" on the main screen and follow the prompts.

3.3. Full System Diagnosis

The THINKSCAN 672 performs OE-level full system diagnostics, allowing you to examine your car like a professional mechanical technician. It automatically scans for all system faults and locates the source of the fault, providing a complete and clear diagnosis report. This includes systems such as:

• ABS System
• Engine System
• SAS (Steering Angle Sensor) System
• TPMS (Tire Pressure Monitoring System)
• IMMO (Immobilizer) System
• Battery System
• Oil Service System
• SRS (Supplemental Restraint System)
• DPF (Diesel Particulate Filter) System
• Air Conditioning System
• Transmission System
• And many more...

Functions include reading and clearing codes, retrieving live data, viewing freeze frames, and accessing ECU information.

Figure 5: Full System Diagnostic Coverage

3.4. 28 Special Maintenance Reset Services

The device offers 28 lifetime free update maintenance reset services to address common vehicle issues. These services include:

• Oil Lamp Reset Service: Resets the engine oil life system after an oil change.
• EPB Electronic Park Brake Reset: Essential for maintaining electronic braking system safety and efficiency.
• BAT Battery Service: Evaluates battery charge state, monitors current, registers battery replacement, and activates vehicle rest state.
• DPF Diesel Particulate Filter Reset: For DPF regeneration, component replacement teach-in, and teach-in after ECU replacement.
• SAS Steering Angle Sensor Reset: Clears fault memories and calibrates the steering angle sensor.
• TPMS Tire Pressure Monitoring System Reset: Displays sensor IDs, inputs replacement IDs, and tests sensors.
• IMMO Key Programming: Disables lost keys and programs new replacement key fobs.
• ABS Bleeding: Bleeds ABS brakes to achieve a firm brake pad after air exhaustion.
• Sunroof Reset: Resets the sunroof control unit after communication problems or replacement.
• Suspension Reset: Resets electronic suspension air ride systems.
• Gearbox (Transmission) Reset: Completes gearbox self-learning for improved shifting quality.
• AFS Headlamp Reset: Resets Adaptive Front lighting System parameters.
• Injector Coding: Codes injectors after replacement or maintenance.
• Throttle Adaptation: Re-learns throttle sensor position after clearing or repair.
• Gear Learning: Monitors camshaft position sensor signals for engine running procedures.
• EGR Reset: Reduces nitrogen oxides (NOx) and improves fuel economy.
• A/F Reset: Sets or learns Air/Fuel ratio parameters.
• Adblue Reset (Diesel Engine Exhaust Gas Filter): Required after replacing or filling diesel exhaust treatment fluid.
• Airbag Reset: Resets airbag data to clear collision fault indicators.
• Coolant Bleeding: Activates the electronic water pump before venting the cooling system.
• AT Learning: Completes gearbox self-learning for improved gear shifting quality.
• Language Change: Changes the system language of the vehicle central control panel.
• Nox Sensor Reset: Resets the catalytic converter learned value after Nox sensor re-initialization or replacement.
• ODO Reset: Copies, writes, or rewrites odometer values for accurate mileage display.
• Stop/Start Reset: Opens or closes the automatic start-stop function via ECU settings.
• Seat Calibration: Matches seats with memory function after replacement or repair.
• Transport Mode: Deactivates transport mode to restore normal vehicle functions.
• Windows Calibration: Performs door window matching to recover ECU initial memory and automatic ascending/descending function.

Figure 6: Overview of 28 Special Maintenance Reset Services

3.5. Active Test (Bi-Directional Control)

Active testing allows for two-way communication between the scanner and car systems. It enables the device to send commands to vehicle sub-systems or components to test their operating status without using vehicle controls. This greatly improves diagnostic efficiency by allowing you to actively monitor and control system behavior. Examples include:

• EVAP Tests
• Fuel Injector Test
• Cycling A/C Clutch Relay
• Cycling ABS Motor Pump
• Cooling Fan Test
• Headlamp Test
• Sunroof/Mirror/Door Lock Tests
• Modulating the Throttle
• And many more...

Figure 7: Active Test (Bi-Directional Control) Capabilities

3.6. Full 10 Mode OBD2 Functions

The THINKSCAN 672 supports all 10 modes of OBD2 diagnostics for comprehensive emission-related checks:

• Read Codes: Retrieves current, pending, and permanent diagnostic trouble codes (DTCs).
• Clear Codes: Clears DTCs and turns off the Check Engine Light.
• Live Data: Displays real-time data stream from the vehicle's sensors in text or graph format.
• Freeze Frame: Captures a snapshot of operating conditions at the moment a DTC was set.
• I/M Readiness: Checks the readiness status of emission-related monitors.
• O2 Sensor Test: Retrieves O2 sensor monitor test results.
• On-Board Monitor Test: Retrieves results for on-board diagnostic monitoring tests of specific components/systems.
• EVAP Test: Initiates a leak test for the vehicle's EVAP system.
• Vehicle Information Display: Retrieves VIN, CINs, and CVNs.
• DTC Lookup: Provides definitions for diagnostic trouble codes.

Figure 8: Full 10 Mode OBDII Car Diagnostics Functions

3.7. CANFD Protocol Support

The THINKSCAN 672 is compatible with the CAN-FD protocol, supporting the latest GM vehicles manufactured after 2020. This advanced protocol uses CRC algorithms to accommodate more data (8 to 64 bytes in the CAN frame), resulting in faster operation and reduced risk of undetected errors. Supported GM models include various Chevrolet, Cadillac, GMC, and Buick models from 2021-2024.

Figure 9: CANFD Protocol Support

3.8. FCA (AutoAuth) Support

FCA vehicles (Fiat Chrysler Automobiles) manufactured since 2017 are protected by an SGW (Secure Gateway) security module. This module restricts diagnostic capabilities without authenticated tools. The THINKSCAN 672 can support reading version information, fault codes, and data streams on FCA vehicles without a gateway account. For advanced functions like action testing, clearing fault codes, special functions, and maintenance functions, a gateway account is required. These accounts can be purchased from the THINKCAR website: www.thinkcar.com (Navigate to "Explore" then "FCA").

Compatible FCA vehicles from 2017-2024 include models such as Chrysler 300/Pacifica, Dodge Challenger/Charger/Durango, Ram series, Jeep Cherokee/Compass/Renegade/Wrangler, Alfa Romeo Giulia/Stelvio, Fiat 500X/Ducato, and more.

3.9. Data Management and Reporting

The device offers robust data management features:

• Live Data Stream Graph: View real-time data graphically for easy analysis.
• Record Data: Record diagnostic data for later review.
• Diagnosis Record Playback: Review previously recorded diagnostic sessions.
• Print Report: Generate and print comprehensive diagnostic reports.

Diagnostic reports can be shared via Wi-Fi (email) for easy collaboration with clients or technicians.

Figure 10: 4-in-1 Scientific Data Management

4. Maintenance

4.1. Software Updates

Regularly update the device software to ensure access to the latest vehicle models, diagnostic functions, and performance improvements. Connect the THINKSCAN 672 to a Wi-Fi network and navigate to the "Upgrade" section in the menu to check for and install updates. All functions receive lifetime free updates.

4.2. Cleaning and Storage

Keep the device clean by wiping it with a soft, dry cloth. Avoid using abrasive cleaners or solvents. Store the device in its provided storage bag in a cool, dry place away from direct sunlight and extreme temperatures when not in use.

4.3. Battery Care

The device is equipped with a 3150mAh battery. For optimal battery life, avoid fully discharging the battery frequently. Charge the device regularly, especially if it will be stored for an extended period.

5. Troubleshooting

For any issues not covered here or for advanced technical assistance, please refer to the Warranty & Support section.

6. Technical Specifications

Figure 11: Optimized Hardware Configuration

7. Warranty and Support

The THINKSCAN 672 comes with lifetime free software updates for all its diagnostic and reset functions, ensuring your device remains current with the latest vehicle technologies and features.

For technical assistance, troubleshooting, or any questions regarding your device, THINKCAR provides professional online customer service. You can access this service directly from your device by navigating to the "Online Service" option in the menu to describe your request, provide relevant screenshots, and receive timely support from the technical team.

Figure 12: Professional Online Customer Service

8. User Tips

• Always ensure your device's software is up-to-date for the best compatibility and functionality.
• When performing diagnostics, ensure the vehicle's ignition is on (engine off) unless otherwise specified by a particular test.
• For FCA vehicles, remember that advanced functions may require an AutoAuth gateway account.
• Utilize the "Auto VIN Scan" feature for quick and accurate vehicle identification.
• Take advantage of the "Live Data Stream Graph" to visually analyze sensor data and identify intermittent issues.
• If you encounter a complex issue, use the built-in "Online Service" to contact technical support with detailed information and screenshots.
• Keep the diagnostic cable and device connections secure to prevent interruptions during testing.