Full Product Manual

19
Vehicle Linking Error
A communication error occurs if the scan tool fails to communicate with the
vehicle’s ECU (Engine Control Unit). Perform the following steps to resolve
error:
 Verify that the ignition is ON.
 Ensure the scan tool’s OBD II connector is securely
connected to the vehicle’s DLC.
 Verify that the vehicle is OBD2 compliant.
 Turn the ignition off and wait for about 10 seconds. Turn the ignition back
to on and continue the testing.
 Verify the control module is not defective.
Operating Error
If the scan tool freezes, then an exception occurs or the vehicle’s ECU
(Engine Control Unit) is too slow to respond to requests. You need to do the
following to reset the tool:
 Reset the scan tool.
 Turn the ignition off and wait for about 10 seconds. Turn the ignition back
to on and continue the testing.
Scan tool doesn’t power up
If the scan tool won’t power up or operates incorrectly, do the following:
 Check if the scan tool’s OBD II connector is securely connected to the
vehicle’s DLC;
 Check if the DLC pins are bent or broken. Clean the DLC pins if
necessary.
 Check vehicle battery to make sure it is still good with at least 8.0 volts.
LED lamps not working
If the LED lamps don’t light during I/M Readiness testing, do the following:
 Make sure the OBD II cable is connected to the DLC securely.