DESCRIPTION
The main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3).
When the system seems to be malfunctioning, use the GTS to check for malfunctions and perform repairs.
CHECK DLC3
INSPECT AUXILIARY BATTERY VOLTAGE
Measure the auxiliary battery voltage with the ignition switch off.
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery.