Smart key system (for start function) data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
Check the DLC3 Click here.
INSPECT AUXILIARY BATTERY VOLTAGE
Measure the auxiliary battery voltage.
If the voltage is below 11 V, recharge or replace the auxiliary battery.