Frequently Asked Questions about GEARWRENCH Diagnostic Tools

The GEARWRENCH Guide to Automotive Scan Tools

Where can I learn more about the GEARWRENCH Diagnostic tools?
Check out our Featured Tools page for more information.
Do your diagnostic tools come with a warranty?
Our diagnostic tools are covered under a limited 2-year warranty. Please reach out to our dedicated Customer Service team at 877-626-3433 for support.
What causes fault codes to remain uncleared or reappear after being cleared?
When clearing codes, please consider the specific circumstances related to the fault. Typically, there are two types of codes: sporadic codes and actual codes.
Sporadic Codes: These codes usually occur when a component functions irregularly at certain points, possibly due to factors such as electromagnetic interference, vibration, or poor wiring contact. These codes can usually be cleared directly.
Actual Codes: These codes occur when components have genuinely failed. Before clearing these codes, ensure that you have addressed the underlying issue. If the fault lights reappear after code clearance, it indicates that the faults have not been addressed.
What causes the fault light to illuminate during diagnosis?
During diagnosis, certain Electronic Control Units (ECUs) enter diagnostic mode, causing the corresponding fault light to activate. This light will automatically turn off once the diagnostic process is complete. This occurrence is normal, so there is no need to worry.
Why aren’t there any lights illuminated on my dashboard, yet my GEARWRENCH scanner has detected the presence of DTC codes?
Not all DTC codes will activate the fault lights on the dashboard. The manufacturer determines which faults will trigger the light and which ones won’t. The Electronic Control Unit (ECU) might not have fully determined if this constitutes a fault. Electromagnetic interference or vibrations could potentially mislead the ECU. Typically, in such instances, the ECU will ascertain whether it’s an actual fault after undergoing several cycles of operation.
Are owner's manuals for the GEARWRENCH automotive diagnostic scanners available digitally?
Yes, they are available in our Resource Library under Technical Documents.
Do you have a team that can help with trouble codes?
No, GEARWRENCH sells the scan to diagnose trouble codes and we are not professional mechanics and cannot offer repair advice with trouble codes and live data. The dashboard warning lights alert the driver there is some type of issue with the vehicle.
How do I register my device with AUTOAUTH?
Check out our "Register Your Device" page for easy-to-follow instructions. Please note that only our GWSMART07 & GWSMARTBT are AUTOAUTH ready.

GWSMART07 - 7" Wireless Bi-Directional Diagnostic Tablet

Does the GWSMART07 support the vehicle I'm working on?
GWSMART07 supports most vehicles which is compatible with OBDII. If you are unsure of the protocol for your vehicle, please contact diagnosticsupport@gearwrench.com for help.
How do I print the diagnostic reports?
GWSMART07 supports third-party print drivers. To install the necessary print driver, use the tablet’s built-in browser to download it, then configure your printer through the OS settings. Once setup is completed, you’ll be able to print your reports.
Why can’t I activate my device?
Check the GEARWRENCH Product Identification Information Card for the activation code and ensure that you are entering the correct code when activating the GWSMART07 device. Verify that you are using the correct S/N, which should be in full uppercase with no spaces. Once verified, try activating it again.
Where can I find a copy of the owner's manual for the GWSMART07?
Digital copies of the GWSMART07 owner's manual and quick start guide are available in our Resource Library under Technical Documents.

GWSMARTBT - Professional Bi-Directional Diagnostic Scan Tool

Does GWSMARTBT support the vehicle I am working on?
GWSMARTBT supports most vehicles which is compatible with OBDII. If you are unsure of the protocol for your car, please contact diagnosticsupport@gearwrench.com for help.
How do I connect the GWSMARTBT device?
Power on the device by connecting it to the OBDII port. Next, go to the Bluetooth settings on your phone and pair the device (its name should match the S/N). Once paired, the light will change from red to green.
Why can’t I activate the GWSMARTBT device?
Check the GEARWRENCH Product Identification Information Card for the activation code and ensure that you are entering the correct code when activating the GWSMARTBT device. Verify that you are using the correct S/N, which should be in full uppercase with no spaces. Once verified, try activating it again.
Is the owner's manual for the GWSMARTBT available?
Yes, you can find the owner's manuals for the GWSMARTBT in our Resources Library under Technical Documents.
English
Spanish
French
Where can I find the GWSMARTBT app?
You can find the GWSMARTBT app on the Apple Store or Google Play Store.

GWSCAN - Everyday Diagnostic Bluetooth OBDII Tester

Does GWSCAN support the vehicle I am working on?
GWSCAN supports most vehicles which is compatible with OBDII. If you are unsure of the protocol for your car, please contact diagnosticsupport@gearwrench.com for help.
Can the GWSCAN be plugged into my vehicle all of the time?
Yes, under typical daily driving circumstances, GWSCAN does not result in battery depletion or damage. It utilizes low-power Bluetooth technology, which enters a sleep mode automatically after the vehicle has been turned off for 3 minutes. Upon the vehicle being restarted, GWSCAN will reactivate.
Why can’t I connect to my GWSCAN?
First, open the "GWSCAN" app on your smartphone or tablet and let the app connect automatically to the device, eliminating the need to search for it again in your phone or tablet settings. Please make sure the "GWSCAN" app is granted permission to enable Bluetooth, access location information, and access device storage. Next, make sure that the GWSCAN is attached firmly to the OBDII port. And lastly, ensure that you have installed the latest version of the GWSCAN app, available from either the Apple App Store or Google Play Store.
Why can't I communicate with the vehicle?
Ensure that the engine is turned on and idling. Verify that the brand and model registered within the GWSCAN app match the vehicle type to which GWSCAN is plugged in.
Where can I find a digital copy of the owner's manual for the GWSCAN?
Copies of our owner's manuals are available in our Resource Library.
English
Spanish
French
Where can I find the GWSCAN app?
The GWSCAN app can be found on Apple Store and Google Play Store.