Toyota Yaris: Lin Communication System / Diagnosis System

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Power Source & Network / Networking / Lin Communication System / Diagnosis System

DIAGNOSIS SYSTEM

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

(a) Check the DLC3.

Click here

INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the ignition switch off.

Standard Voltage:

11 to 14 V

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

Terminals Of Ecu

TERMINALS OF ECU CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *1 POWER DISTRIBUTION BOX ASSEMBLY *2 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove main body ECU (multiplex network body ECU)...

Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Check for DTCs. Body Electrical > Main Body > Trouble Codes Body Electrical > Smart Key > Trouble Codes Body Electrical > Power Source Control > Trouble Codes (b) Check the details of the DTCs...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Lost Communication with Air Inlet Damper Control Servo Motor LIN Missing Message (B143A87)

DESCRIPTION The air conditioning harness assembly and No. 1 air conditioning radiator damper servo sub-assembly connect the air conditioning amplifier assembly and the No. 1 blower damper servo sub-assembly. The air conditioning amplifier assembly supplies power and sends operation instructions to No...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Installation

INSTALLATION PROCEDURE 1. INSTALL CAMSHAFT POSITION SENSOR (for Intake Side) (a) Clean the O-ring groove of the camshaft position sensor. NOTICE: Make sure the O-ring groove is free of foreign matter. (b) Install a new O-ring to the camshaft position sensor...