Lin Communication System Diagnosis System

Power Source Network. Corolla. Zre142 Aze141
Networking. Corolla. Zre142 Aze141

  1. DESCRIPTION

  1. CHECK DLC3

  1. INSPECT BATTERY VOLTAGE

Lin Communication System -- Diagnosis System



DESCRIPTION

  1. The certification ECU (smart key ECU assembly) controls 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.


CHECK DLC3

  1. Check the DLC3 (COROLLA_ZRE142 RM000000UZ20CBX.html).


INSPECT BATTERY VOLTAGE

  1. Measure the battery voltage.

    Standard Voltage:
    11 to 14 V
    If the voltage is below 11 V, recharge or replace the battery before proceeding.