Diagnosis System

NETWORKING: LIN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

1. DESCRIPTION

The main body ECU (multiplex network body ECU), AFS ECU (headlight swivel ECU assembly) 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 Techstream to check for malfunctions and perform repairs.

2. CHECK DLC3

(a) Check the DLC3 General Information.

3. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage with the power switch off.

Standard Voltage:

11 to 14 V

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