Troubleshooting Steps
A. Confirm you have selected the correct vehicle
brand, model and year while manually diagnosing.
B. Confirm the pins in the OBD2 diagnostic
connector, or in the VCI dongle are intact.
C. Confirm the DCL port is in good condition.
D. Confirm the diagnostic software has been
updated to the latest version.
E. Connect the scanner to another vehicle.
F. Contact us via support@topdon.com for 24/7
service if problem remains. Or use the “Feedback”
module to send us your vehicle’s brand, model and
year for timely technical assistance.
