THINKCAR Thinkdiag OBD2 Scanner User Manual

1. Introduction

The THINKCAR Thinkdiag is a smart Bluetooth diagnostic tool designed for both DIY enthusiasts and professional car owners. It offers comprehensive diagnostic capabilities that are comparable to high-end professional tools, but at a more accessible price point.

This device supports full OBDII functions and advanced vehicle system diagnostics, allowing you to monitor every module in your car. Key features include Active Test (Bi-Directional Control) and ECU Coding, which are typically found in more expensive diagnostic equipment.

Image: THINKCAR Thinkdiag OBD2 Scanner with included OBD cable.

2. Key Features

• Full System Diagnosis: Comprehensive diagnostics for all vehicle electronic control systems.
• 16 Reset Functions: Includes essential maintenance reset functions.
• Active Test (Bi-Directional Control): Capable of performing active tests to control vehicle subsystems and components.
• ECU Coding: Advanced function to re-flash vehicle control modules and reprogram adaptive data.
• Auto VIN: Automatic vehicle identification for quick setup.
• Full OBD2 Functions: Supports all 10 OBD2 test modes.
• Multi-Language Support: Available in 10 languages including English, French, Spanish, German, Portuguese, Italian, Japanese, Russian, Polish, and Turkish.
• 4-in-1 Data Stream Graph: Displays live vehicle data graphically with optional multi-data combination.
• Remote Diagnostics: Perform remote diagnostics for Thinkcar devices.
• Online Diagnostic Report: Generate and print car health reports.
• Community Support: Access to a community for assistance and information.
• Durable Design: Features a dust-proof and shock-resistant design.
• Cross-Platform Compatibility: Works with both Android and iOS smartphones/tablets.
• Software Updates: Includes 1, 2, or 3 years of free software updates depending on the purchased version.

Image: Overview of Thinkdiag's main diagnostic and special functions.

Image: Thinkdiag supports 10 languages, adapting to your phone's system language.

3. Specifications

Package Dimensions:

• Length: 11 cm
• Width: 12 cm
• Height: 21 cm
• Weight: 0.3 kg

4. Setup Guide

1. Download the Thinkdiag App: On your smartphone or tablet, search for and download the "Thinkdiag" application from your device's app store (Google Play Store for Android or Apple App Store for iOS).
2. Register and Log In: Open the Thinkdiag app and follow the on-screen instructions to register a new account and log in.
3. Activate Thinkdiag: Once logged in, activate your Thinkdiag device through the app.
4. Connect to Vehicle: Plug the Thinkdiag device into your vehicle's OBDII port. Turn on the vehicle ignition (do not start the engine).
5. Bluetooth Connection: Establish a Bluetooth connection between your smartphone/tablet and the Thinkdiag device via the app.
6. Download Software: Within the app, download the necessary vehicle software for your car model.
7. Start Diagnosis: Once the software is downloaded, you can begin using the diagnostic functions.

Video: Visual guide on how to connect and use the Thinkdiag device.

Image: Illustrated steps for downloading the app, registering, activating, and connecting the Thinkdiag.

5. Operating Instructions

5.1. Full System Diagnosis

The Thinkdiag performs comprehensive diagnostics on the electronic control systems of various vehicle models (Asian, European, American, and Chinese). This includes reading and clearing Diagnostic Trouble Codes (DTCs), reading live data streams, and performing special functions for various systems such as:

• Brake System: Diagnose issues if the brake pedal feels mushy or if there are unusual odors/noises.
• Emission System: Check for proper operation to reduce harmful gases and avoid fines.
• Fuel System: Diagnose starting issues or illuminated "Check Engine" lights to ensure optimal performance and emissions.
• Transmission: Address slipping or difficult shifting to maintain overall car performance.
• Wiper System: Diagnose chattering or streaking wipers for clear visibility and safety.
• Light System: Diagnose rapid signal blinking or dimming lights.
• And many more systems like Engine, ABS, SRS, SAS, Suspension, Car Radio, Air Conditioning, Headlamp, HVAC, EPS, ESP, Immo System, DPF System, Throttle Valve Position Reset, Battery System, CKP Learning, etc.

Image: Thinkdiag performing a full system diagnosis, covering various vehicle systems.

5.2. Full OBD2 Diagnostic Functions

The Thinkdiag supports all 10 modes of OBD2 diagnostics:

• Reading Codes: Displays detailed descriptions of Diagnostic Trouble Codes (DTCs).
• Erasing Codes & Reset: Turns off the Check Engine Light (MIL), clears codes, and resets monitors.
• Data Stream: Reads and displays live ECU/PCM data stream, with graphical plotting and freeze frame data storage.
• I/M Readiness Status: Shows if emission-related systems are operating correctly and ready for testing.
• Read Live Data Stream: Displays continuous data stream from a vehicle in live graphic (waveform) display.
• View Freeze Frame Data: Checks vehicle conditions recorded by the on-board computer when an emission-related fault occurs.
• O2 Sensor Test: Allows retrieval and viewing of O2 sensor monitor test results.
• On-Board Monitor Test: Retrieves and displays test results for emission-related powertrain components and systems.
• Read Vehicle Information: Displays VIN (Vehicle Identification Number), CID (Calibration ID), and CVN (Calibration Verification Number).
• Component Test: Certain vehicle components can be actuated by commands from the scanner to test their operability.

Image: Visual representation of various OBDII functions available through the Thinkdiag app.

5.3. 4-in-1 Data Stream Graph

The Thinkdiag allows you to read and display live vehicle data streams in a graphical format. You can combine up to four data streams for simultaneous viewing, which is useful for comparing parameters and identifying anomalies.

Image: A 4-in-1 data stream graph displaying engine parameters for detailed analysis.

5.4. Active Test (Bi-Directional Control)

This feature allows the diagnostic tool to send commands to the vehicle's ECU to activate specific actuators or perform system tests. This helps in determining the integrity of the system or parts by monitoring the operation of the actuators. Examples include:

• Wiper Test
• Window Test
• Headlight Test
• Injector Test
• Turbo Charger Boost Test
• Fuel Heater On/Off
• Imrc Test
• Fuel Rail Pressure Test
• All Injectors Off
• Glow On/Off
• Radiator Fan Relay Test
• Fuel Rail Pressure Control Valve Test
• Acg On/Off
• EGR Cooler Bypass Valve Test
• Intake Shutter Test
• EGR Test
• In Tank Pump Activation
• Shutter Grill

Note: Active tests are not universal for all vehicles. Always check compatibility with your VIN number before attempting specific tests.

Image: Illustrations of bi-directional control functions such as testing wipers, windows, and headlights.

5.5. ECU Coding

The ECU Coding function allows you to re-flash vehicle control modules, update computer software to the latest version, and reprogram adaptive data for components after repairs or replacements. This can resolve issues related to drivability, fuel efficiency, power loss, and fault codes. Please note that ECU coding is not universal for all vehicles; check compatibility with your VIN before use.

Image: Visual explanation of ECU coding, showing the device connected to a car's ECU.

6. 16 Maintenance Reset Functions

The Thinkdiag offers 16 commonly used maintenance reset functions:

• 1. Oil Reset Service: Resets the oil maintenance light after an oil change.
• 2. Steering Angle Calibration: Resets the steering angle position after replacing steering components or performing wheel alignment.
• 3. Electronic Parking Brake Reset: Resets the brake pad warning light after replacing brake pads.
• 4. Battery Register & Battery Maintenance: Performs resetting operations on the vehicle battery monitoring unit and battery matching.
• 5. ABS Bleeding: Bleeds the brake system to restore ABS brake sensitivity after component replacement or fluid change.
• 6. Electronic Throttle Position Reset & Learn: Initializes the throttle actuator to return the ECU's learning value to its initial state.
• 7. Diesel Particulate Filter (DPF) Regeneration: Clears PM from the DPF filter to stabilize filter performance.
• 8. Tire Pressure Monitor System Reset: Resets tire pressure and turns off the MIL after tire pressure issues or component replacement.
• 9. Gear Learning: Learns crankshaft gear machining tolerance to accurately diagnose engine misfires.
• 10. Anti-theft (IMMO) Matching: Matches remote control keys to the immobilizer control system.
• 11. Injector Matching: Writes or rewrites injector codes in the ECU for accurate fuel injection control.
• 12. Air Suspension Reset: Adjusts body height and calibrates the body height sensor.
• 13. Gearbox / Transmission Reset: Completes gearbox self-learning to improve shifting quality after disassembly or repair.
• 14. Sunroof Reset: Sets sunroof lock off, closed when it rains, sliding/tilting memory, and temperature thresholds.
• 15. AFS Reset (Adaptive Front-lighting System): Initializes the adaptive headlamp system to adjust lighting angles based on conditions.
• 16. EGR Reset: Learns the EGR (Exhaust Gas Recirculation) valve after cleaning or replacement.

Note: These special functions are not available for all car models. Please consult the seller or product documentation for specific vehicle compatibility.

Image: Visual guide to the 16 maintenance reset functions.

7. Vehicle Coverage

The Thinkdiag covers up to 115 major vehicle brands, supporting most cars built in 1996 or later for OBDII diagnostics. It is compatible with the following protocols:

• - ISO 14230-4 (KWP2000)
• - ISO 15765-4 (CAN)
• - ISO 9141-2 (ISO)
• - ISO 14229 (UDS)
• - SAE J1850 (VPW & PWM)

For advanced functions like active test, all system diagnostics, and maintenance services, it covers 95% of car models available in the market, including but not limited to:

• For ASTONMARTIN, AUDI, BENZ, BMW, HONDA, ISUZU, KIA, LANDROVER, PORSCHE, RENAULT, ROVER, SAAB, SUBARU, SUZUKI, TOYOTA, USAFORD, CITROEN, DAEWOO, MITSUBISHI, SKODA, MAZDA, FERRARI, NISSAN, SMART, SPRINTER, SGM, FIAT, OPEL, PEUGEOT, VW, GM, AUTOSEARCH, DEMO, CHRYSLER, SEAT, HYUNDAI, SSANGYONG, MASERATI, VOLVO.

Image: Extensive list of vehicle brands compatible with Thinkdiag.

8. User Tips

• The app language will automatically match your phone's system language.
• The full OBD functions are lifetime free updates.
• After initial updates, the Thinkdiag can be used without an internet connection.
• Always verify vehicle compatibility for specific active tests and ECU coding functions using your VIN number before purchase or use.
• Ensure you download the correct "Thinkdiag" app, as other apps may not be compatible.

9. Troubleshooting

• Software Download Issues: If you encounter problems downloading software, ensure you have downloaded the official "Thinkdiag" app. Incorrect apps may not function properly.
• Vehicle Compatibility: The Thinkdiag supports over 115 brands. If you are unsure about compatibility for a specific function (e.g., active test, ECU coding), please provide your car's brand, model, and year to the seller for verification.
• Truck Support: This device does not support 24V trucks. It is designed for 12V passenger vehicles.
• No Internet Connection After Update: Once the software is updated, you can use the Thinkdiag without an internet connection for most diagnostic functions.

10. Warranty and Support

The Thinkdiag device typically comes with 1, 2, or 3 years of free software updates, depending on the version purchased. After the free update period expires, you can continue to use the full OBD functions, which are lifetime free. For continued access to advanced features and vehicle-specific software updates, a subscription is required:

• Annual update subscription: $99 for 1 year.
• Two-year update subscription: $139 for 2 years.

For any technical assistance or inquiries regarding your Thinkdiag device, please contact the official THINKCAR support channels.

11. Packing List

The contents of your Thinkdiag package may vary based on the specific version purchased:

• Type 1 (Red): 1pc Thinkdiag OLD Version + OBD CABLE

• Type 2 (White): 1pc Thinkdiag OLD VERSION

• Type 3 (Blue): 1pc Thinkdiag New Version (1 Year Free Update) + OBD CABLE

• Type 4 (Green): 1pc Thinkdiag New Version (1 Year Free Update)