Toyota Yaris: Lin Communication System / Diagnosis System

Toyota Yaris XP210 (2020-2026) 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 (2020-2026) Reapir and Service Manual: Power Window Switch Malfunction (B2312)

DESCRIPTION The power window regulator motor assemblies are operated by the multiplex network master switch assembly or power window regulator switch assembly. The power window regulator motor assemblies have motor, regulator and ECU functions. This DTC is stored when the ECU built into a power window regulator motor assembly and multiplex network master switch assembly determine that the multiplex network master switch assembly or power window regulator switch assembly is stuck...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Stop Light Relay Actuator Stuck (C142571)

DESCRIPTION The stop light switch and skid control ECU (brake actuator assembly) output stop light signals. If the skid control ECU (brake actuator assembly) detects a malfunction in circuits related to the stop light, it informs the millimeter wave radar sensor assembly via CAN communication, and DTC C142571 is stored...