LIN COMMUNICATION SYSTEM > DIAGNOSIS SYSTEM

for Preparation Click here



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 intelligent tester to check for malfunctions and perform repairs.

CHECK DLC3

  1. Check the DLC3 (Click here).


INSPECT AUXILIARY BATTERY VOLTAGE

  1. Measure the auxiliary battery voltage with the power switch off.

    Standard Voltage:
    11 to 14 V

    1. If the voltage is below 11 V, recharge or replace the auxiliary battery.