Toyota Yaris: Wireless Door Lock Control System / Problem Symptoms Table

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Vehicle Interior / Door Lock / Wireless Door Lock Control System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Wireless Door Lock Control System

Symptom

Suspected Area

Link

Wireless control function and entry function do not operate

Proceed to "All Door Entry Lock / Unlock Functions and Wireless Functions do not Operate"

Wireless control function does not operate but entry function operates

Electrical key transmitter sub-assembly

-

Only answer-back function does not operate properly

Proceed to "No Answer-Back"

Only automatic lock function does not operate properly

Perform operation check

Lighting system (Int) (Front door courtesy switch circuit)

Lighting system (Int) (Back door courtesy switch circuit)

Main body ECU (Multiplex network body ECU)

Only illuminated entry function does not operate

Perform operation check

Lighting system (Int)

Main body ECU (Multiplex network body ECU)

Only door ajar warning buzzer function does not operate

Wireless Door Lock Buzzer

    Customize Parameters

    CUSTOMIZE PARAMETERS CUSTOMIZE WIRELESS DOOR LOCK CONTROL SYSTEM NOTICE: When the customer requests a change in a function, first make sure that the function can be customized...

    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 the main body ECU (multiplex network body ECU) from the power distribution box assembly...

    Other information:

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Terminals Of Ecu


    TERMINALS OF ECU TERMINALS OF ECU *a Component without harness connected (Skid Control ECU [Brake Actuator Assembly]) - - Terminal No. (Symbol) Terminal Description 1 (GND2) Pump motor ground 2 - (Not used) 3 - (Not used) 4 - (Not used) 5 (STP2) Stop light switch assembly input 6 - (Not used) 7 - (Not used) 8 - (Not used) 9 - (Not used) 10 (CANL) CAN communication line L 11 - (Not used) 12 (IGR) ECU power supply input 13 (BM) Motor relay power supply 14 (SP1) Speed signal output for speedometer 15 (RR-) Rear wheel speed RH (-) signal input 16 (RR+) Rear wheel speed RH (+) power supply output 17 (FL-) Front wheel speed LH (-) signal input 18 (FL+) Front wheel speed LH (+) power supply output 19 - (Not used) 20 - (Not used) 21 - (Not used) 22 (CANH) CAN communication line H 23 - (Not used) 24 - (Not used) 25 (GND1) Skid control ECU (brake actuator assembly) ground 26 (STPO) Stop light switch assembly output 27 - (Not used) 28 (RL-) Rear wheel speed LH (-) signal input 29 (RL+) Rear wheel speed LH (+) power supply output 30 (FR-) Front wheel speed RH (-) signal input 31 (FR+) Front wheel speed RH (+) power supply output 32 - (Not used) 33 (CSW) VSC OFF switch (combination switch assembly) input 34 - (Not used) 35 (STP) Stop light switch assembly input 36 (CA2H) CAN communication line H 37 (CA2L) CAN communication line L 38 (+BS) Solenoid relay power supply TERMINAL INSPECTION (a) Disconnect the A108 connector and measure the voltage or resistance on the wire harness side...

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: LIN Communication Missing Message (B228787)


    DESCRIPTION When an internal malfunction is detected in the certification ECU (smart key ECU assembly), this DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area B228787 LIN Communication Missing Message An internal malfunction occurs in the certification ECU (smart key ECU assembly)...

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    Fuel-Filler Lid and Cap

    WARNING

    When removing the fuel-filler cap, loosen the cap slightly and wait for any hissing to stop, then remove it

    Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and the fuel-filler cap is removed too quickly.

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