Toyota Yaris: Theft Deterrent / Keyless Entry / Smart Key System (for Start Function)
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Key System (for Start Function)
- Precaution
- Parts Location
- System Diagram
- How To Proceed With Troubleshooting
- Check For Intermittent Problems
- Operation Check
- Registration
- Customize Parameters
- Problem Symptoms Table
- Terminals Of Ecu
- Dtc Check / Clear
- Data List / Active Test
- Diagnostic Trouble Code Chart
- IG Circuit Short to Ground (B227111)
- ACC Circuit Short to Ground (B227411)
- Engine/Power Switch Signal Compare Failure (B227862)
- Vehicle Speed Signal Circuit Open (B228231,B228262)
- Steering Lock Position Signal Compare Failure (B228562)
- Battery Circuit or Ground Circuit Energization Malfunction (B228B00)
- Wireless Starter Component Internal Failure (B277A96)
- Steering Lock System Component Internal Failure (B278196)
- Power Source Control System Circuit Short to Ground (B278211)
- Power Source Control System Circuit Short to Battery or Open (B278215)
- Antenna Coil Circuit Voltage Out of Range (B27841C)
- ID-BOX Component Internal Failure (B278D96)
- Immobiliser Amp Missing Message (B278E87)
- ID-BOX Calibration / Parameter Memory Failure (B279046)
- Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid (B279986)
- Engine Immobiliser System Circuit Short to Battery (B279A12)
- Engine Immobiliser System Incorrect Assembly (B279C95)
- Steering Lock Confirmation Signal Circuit Voltage Out of Range (B279F1C)
- Front Floor Electrical Key Oscillator Circuit Open (B27A513)
- Crankshaft Position Sensor "A" Signal Compare Failure (P033562)
- Lost Communication with ECM/PCM "A" Missing Message (U010087,U012987,U014087,U015587,U110387,U111787)
- Engine does not Start
- Power Source Mode does not Change to ON (IG and ACC)
- Power Source Mode does not Change to ON (IG)
- Power Source Mode does not Change to ON (ACC)
- New Key cannot be Registered
- Additional Key cannot be Registered
- New Key Registration Warning Message is not Displayed
- System Malfunction Message is Displayed on the Multi-information Display
- Steering Lock does not Lock
- Security Indicator Light Does not Blink
- Immobiliser System does not Operate Properly
- Unable to Unlock Steering Wheel (Engine cannot Start)
Back Door Entry Lock Function does not Operate
DESCRIPTION If the entry lock function does not operate for the back door only, but the entry unlock function operates, the request code is being transmitted properly from the back door...
Precaution
PRECAUTION CAUTION REGARDING INTERFERENCE WITH ELECTRONIC DEVICES CAUTION: As weak radio waves are emitted from the electrical key transmitter sub-assembly, if a pacemaker is being used, be sure to read the pacemaker instruction manual and the following...
Other information:
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch
DESCRIPTION If the manual up and down functions operate normally but the auto up and down functions do not, the power window control system may be in fail-safe mode. If power window initialization has not been performed, the auto up and down functions will not operate...
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Lost Communication with ECM/PCM "A" Missing Message (U010087,U010187,U012687,U012987,U015587)
DESCRIPTION The following DTCs are stored when there is a communication malfunction between the millimeter wave radar sensor and each sensor or ECU. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication with ECM/PCM "A" Missing Message When the ignition switch is ON for 3 seconds or more, an ECM communication malfunction continues for approximately 3 seconds or more...
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Front Seat Belt Pretensioners
The front seat belt pretensioners are designed to deploy in moderate or severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision or a rollover accident is detected. The pretensioners operate differently depending on what types of air bags are equipped. For more details about the seat belt pretensioner operation, refer to the SRS Air Bag Deployment Criteria.
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