If Lonsdor K518ISE cannot communicate to any supported car models, it’s likely that the OBD cable or the DB25 port has a problem. So, here we will show you how to test K518ISE OBD line and DB25 port.
How to Test OBD cable?
There are 3 connectors on OBD cable:
Connector 1: connect K518ISE OBD port;
Connector 2: connect KPROG adaptor
Connector 3: connect the vehicle OBD port
Step 1
Unplug the K518ISE main unit and turn it off
Step 2
Connect the DB25 cable(OBD cable) to k518ISE main unit, using a multimeter and switch to the diode stalls
Step 3
Use the Red pen to touch the metal part
Step 4
Use the black pen to test the resistance of each pin of the vehicle connector
Result Analysis:
*PIN 1 and 8 should have no resistance; PIN2-7 and 9-16 should have resistance
1.All pins have no resistance, then DB25 cable has a problem
2.Measurement is correct as it supposes to be, and device still can’t communicate with any cars it support, then send back device and OBD cable for repair.