Toyota Yaris: Sfi System / Fail-safe Chart

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / Fail-safe Chart

FAIL-SAFE CHART

If any of the following DTCs are stored, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily or stops fuel injection.

DTC Code

Component

Fail-Safe Operation

Fail-Safe Deactivation Condition

P001100

P001200

VVT system

  • Intake VVT maximum retarded contact.
  • Boost prohibited.
  • Idle up (control of combustion worsening).

Pass condition detected and then ignition switch turned off

P001500

VVT system

  • Exhaust VVT maximum advance contact.
  • Boost prohibited.
  • Idle up (control of combustion worsening).

Pass condition detected and then ignition switch turned off

P001600

VVT system

  • Intake VVT maximum retarded contact.
  • Idle up (control of combustion worsening).

Pass condition detected and then ignition switch turned off

P001700

VVT system

  • Exhaust VVT maximum advance contact.
  • Idle up (control of combustion worsening).

Pass condition detected and then ignition switch turned off

P006D62

  • E.F.I. vacuum sensor assembly
  • Atmospheric pressure sensor (ECM)

Output power is limited.

Ignition switch off

P00CF62

P023511

P023515

No. 1 turbo pressure sensor

Boost prohibited.

Pass condition detected

P003012

P003013

P101A9E

Air fuel ratio sensor (sensor 1) heater

The ECM turns off the air fuel ratio sensor (sensor 1) heater.

Ignition switch off

P003312

P003314

Air by-pass valve assembly

Output power is limited.

Pass condition detected

P003612

P003613

P102A9E

Air fuel ratio sensor (sensor 2) heater

The ECM turns off the air fuel ratio sensor (sensor 2) heater.

Ignition switch off

P007A11

P007A15

Intake air temperature sensor (No. 2 turbo pressure sensor)

  • The ECM estimates the intake air temperature to be 45°C (113°F).
  • Output power is limited.

Pass condition detected

P008700

P008800

P123513

Fuel pump assembly (for high pressure side)

  • Output power is limited.
  • Fuel pressure is set to 200 kPa (2 kgf/cm2, 29 psi)

Ignition switch off

P011011

P011015

Intake air temperature sensor (mass air flow meter sub-assembly)

  • Boost prohibited.
  • The ECM estimates the intake air temperature to be 20°C (68°F).

Pass condition detected and then ignition switch turned off

P010012

P010014

Mass air flow meter sub-assembly

Boost prohibited.

Pass condition detected and then ignition switch turned off

P011511

P011515

Engine coolant temperature sensor

  • The ECM estimates the outlet side engine coolant temperature to be 80°C (176°F).
  • The target engine coolant temperature is set to 82°C.

Pass condition detected

P012011

P012015

P01201C

P022011

P022015

P060444

P060647

P060747

P060787

P060D49

P060E49

P065714

P16B09F

P210018

P210019

P211172

P211173

P211900

P211904

P211977

P21199B

P21352B

Electronic throttle control system

  • Boost prohibited.
  • The ECM cuts off throttle actuator current for both bank 1, and the throttle valve is returned to a 8° throttle position by the return spring.
  • The ECM then adjusts the engine output by controlling fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal angle to allow the vehicle to be driven at a low speed*1.

Pass condition detected and then ignition switch turned off

P019011

P019015

Fuel pressure sensor (for high pressure)

  • Output power is limited.
  • Fuel pressure is set to 200 kPa (2 kgf/cm2, 29 psi)

Ignition switch off

P020113

P020213

P020313

P062D13

ECM (injector driver)

Fuel cut is performed and then the output is limited when the engine speed is 1000 rpm or more.

Pass condition detected and then ignition switch turned off

P023400

P02351C

Turbocharger system

Boost prohibited.

Ignition switch off

P030000

P030027

P030085

P030100

P030200

P030300

*2

  • Port fuel injector assembly
  • Direct fuel injector assembly
  • Electronic throttle control system

When a catalyst-damaging misfire occurs (MIL blinking), the following fail-safe operation is performed for catalyst overheat malfunction prevention.

  1. Under a low load and at a low engine speed:

    - Fuel cut is performed on the malfunctioning cylinder.

  2. Under a high load and at a high engine speed:

    - Throttle valve opening angle control is performed.

    - Fuel cut is performed on all cylinders or the malfunctioning cylinder.

Pass condition detected and then ignition switch turned off

P032511

P032515

Knock control sensor

The ECM sets the ignition timing to maximum retard.

Ignition switch off

P05042B

Stop light switch assembly

The accelerator pedal opening angle is fixed when there is an accelerator pedal malfunction or history of a malfunction.

Ignition switch off

P056014

ECM +B circuit

Generator command is maintained.

Pass condition detected and then ignition switch turned off

P107A11

P107A15

No. 2 fuel pressure sensor (for low pressure side)

Fuel pump (for low pressure side) control is maintained.

Ignition switch off

P137800

Pre-ignition

Output is limited in low-speed boost region.

Clear DTC after recovering to normal condition

P212012

P212014

P21201C

P21201F

P212099

P212512

P212514

P21251F

P21382B

Accelerator pedal sensor assembly

The accelerator pedal position sensor has 2 sensor circuits: Main and Sub.

If either circuit malfunctions, the ECM limits the engine output.

If both circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.

Pass condition detected and then ignition switch turned off

P21CF13

P21D013

P21D113

Port fuel injector assembly

The ECM performs fuel-cut when the engine speed is 2000 rpm or more.

Pass condition detected and then ignition switch turned off

P222611

P222615

Atmospheric pressure sensor (ECM)

Boost prohibited.

Ignition switch off

P223711

P223712

P223713

P223716

P223717

P22371B

P225111

P225112

Air fuel ratio sensor (sensor 1)

Air fuel ratio sensor (sensor 1) air fuel ratio feedback control is stopped.

Pass condition detected and then ignition switch turned off

P22AB11

P22AB12

P22AB13

P22AB16

P22AB17

P22B211

P22B212

Air fuel ratio sensor (sensor 2)

  • Control based on air fuel ratio sensor (sensor 2) air fuel ratio feedback is stopped.
  • The ECM turns off the air fuel ratio sensor (sensor 2) heater.

Pass condition detected and then ignition switch turned off

P23AA73

Air by-pass valve assembly

Output power is limited.

Pass condition detected and then ignition switch turned off

HINT:

  • *1: The vehicle can be driven slowly when the accelerator pedal is depressed firmly and slowly. If the accelerator pedal is depressed quickly, the vehicle may speed up and slow down erratically.
  • *2: Misfire-related fail-safe operations occur when catalyst overheat malfunctions occur.

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    Categories

    Turning the Engine Off

    Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.

    Automatic transaxle: Shift the selector lever to the P position and set the parking brake.

    Press the push button start to turn off the engine. The ignition position is off.

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