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: Stop and Start System does not Operate (Battery Condition)

DESCRIPTION When the stop and start system does not operate, check whether the operation is prohibited because the auxiliary battery conditions are not met. Data List items Hood Courtesy Switch Auxiliary Battery Current Auxiliary Battery Fluid Temperature (Start) Auxiliary Battery Fluid Temperature Idling Stop Rate Total Idling Stop Rate Integrated Current Status of Auxiliary Battery Charge Control Minimum Voltage (Cranking) Minimum Voltage (Starter Solenoid Engagement) State of BBC Stop&Start Operating Permission (Power Management) Stop&Start Operating Permission (Minimum Voltage (Starter Solenoid Engagement)) Stop&Start Operating Permission (Minimum Voltage (Cranking)) Stop&Start Operating Permission (Integrated Current) Stop&Start Operating Prohibition (Jump Start) Stop&Start Operating Prohibition (Manual Start for the First Time) Auxiliary Battery Type Ambient Temperature Alternator Status NOTICE: If the Data List item Stop&Start Operating Permission (Power Management) is "NG" even after correcting a certain problem using the diagnostic troubleshooting procedures, the problem may be due to the auxiliary battery charge amount being temporarily low or the auxiliary battery may be deteriorated...

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

COMPONENTS ILLUSTRATION *1 NO. 1 ENGINE UNDER COVER ASSEMBLY - - N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *1 WATER GUARD PLATE RH *2 NO. 1 FRONT VENTILATOR SEAL *3 OUTER COWL TOP PANEL SUB-ASSEMBLY - - N*m (kgf*cm, ft...