Diagnosis System

1. The gateway ECU controls the functions of the multiplex communication system on the vehicle. Data of the multiplex communication system and the Diagnostic Trouble Codes (DTC) can be read through the Data Link Connector 3 (DLC3) of the vehicle

1. Check the DLC3 (See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS )

Standard Voltage: 

11 to 14 V 

If the voltage is below 11V, recharge or replace the battery before proceeding