Toyota Avalon Service & Repair Manual: 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

P001001

P001600

P136001

P136201

P261401

Cam timing control motor with EDU assembly

The cam timing control motor with EDU assembly is operated to the most retarded position.

Pass condition detected and then power switch turned off

P001100

P001200

VVT system

Idling up (misfire prevention), or the cam timing control motor with EDU assembly is operated to the most retarded position.

Pass condition detected and then power switch turned off

P001500

VVT system

  • Idle up (control of combustion worsening).
  • Stopping fuel-cut control

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.

Power switch off

P003612

P003613

P102A9E

Air fuel ratio sensor (sensor 2) heater

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

Power switch off

P006900

P222611

P222615

  • Manifold absolute pressure sensor
  • Atmospheric pressure sensor (ECM)

The ECM maintains the last learned atmospheric pressure value.

Pass condition detected

P008700

P008800

P123513

Fuel pump assembly (for high pressure side)

  • The ECM performs fuel-cut when the engine speed and engine load are high.
  • Fuel pressure is set to 200 kPa (2 kgf/cm2, 29 psi)

Power switch off

P010012

P010014

Mass air flow meter sub-assembly

The ECM calculates ignition timing according to the engine speed and throttle valve position.

Pass condition detected and then power switch turned off

P011011

P011015

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

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

Pass condition detected and then power switch turned off

P011511

P011515

Engine coolant temperature sensor

The ECM estimates the engine coolant temperature to be 80°C (176°F).

Pass condition detected

P012011

P012015

P01201C

P022011

P022015

P060444

P060647

P060747

P060787

P060E49

P065714

P06579E

P16B09F

P210014

P210015

P211172

P211173

P211900

P211904

P211977

P21199B

P21352B

Electronic throttle control system

The ECM cuts off throttle actuator current and the throttle valve is returned to a 7.5° throttle position by the return spring.

The ECM controls the fuel injection duration and ignition timing in accordance with the engine torque requested by the hybrid vehicle control ECU assembly. Fuel-cut is performed intermittently.*1

Pass condition detected and then power switch turned off

P019011

P019015

Fuel pressure sensor (for high pressure)

  • The ECM performs fuel-cut when the engine speed and engine load are high.
  • Fuel pressure is set to 200 kPa (2 kgf/cm2, 29 psi)

Pass condition detected and then power switch turned off

P020113

P020213

P020313

P020413

P062D13

ECM (injector driver)

The ECM performs fuel-cut when the engine speed is 1000 rpm or more.

Pass condition detected and then power switch turned off

P030000

P030027

P030085

P030100

P030200

P030300

P030400

*2

  • 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 power switch turned off

P032511

P032515

Knock control sensor

The ECM sets the ignition timing to maximum retard.

Power switch off

P04019C

P040318

P040319

P140018

P140019

EGR valve assembly

The ECM fully closes the EGR valve and stops EGR control.

Pass condition detected

P052012

P052014

P052024

P05202A

Oil pressure sensor (oil pressure sender gauge assembly)

Current to the oil pressure control valve assembly is cut in order to fully close the oil pressure control valve assembly so that the pump operates at maximum capacity.

Pass condition detected and then power switch turned off

P052477

P15F009

P15F077

Engine oil pressure control system

  • Current to the oil pressure control valve assembly is cut in order to fully close the oil pressure control valve assembly so that the pump operates at maximum capacity.
  • The maximum engine speed is limited in accordance with the abnormal pressure.

Pass condition detected and then power switch turned off

P059F73

P05A072

P05A074

P05A211

P05A212

P05A213

P05A27E

P05A27F

P05B131

Swing grille actuator assembly

The grille shutter system control is suspended.

Normal system condition detected, power switch turned off then on (IG) and normal grille shutter closing and opening operation performed

P05B112

P05B114

Swing grille actuator assembly

  • Grille shutter closed position:

    The grille shutter is fully opened and then grille shutter system control is suspended.

  • Grille shutter open position:

    The grille shutter system control is suspended.

Normal system condition detected, power switch turned off then on (IG) and normal grille shutter closing and opening operation performed

P06DA13

Oil pressure control valve assembly

Current to the oil pressure control valve assembly is cut in order to fully close the oil pressure control valve assembly so that the pump operates at maximum capacity.

Pass condition detected and then power switch turned off

P107A11

P107A15

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

  • Fuel pump (for low pressure side) control is maintained.
  • Output power is limited.

Pass condition detected and then power switch turned off

P15F109

Engine oil pressure control system

  • Current to the oil pressure control valve assembly is cut in order to fully close the oil pressure control valve assembly so that the pump operates at maximum capacity.
  • Output power is limited.

Pass condition detected and then power switch turned off

P15F177

Engine oil pressure control system

Current to the oil pressure control valve assembly is cut in order to fully close the oil pressure control valve assembly so that the pump operates at maximum capacity.

Pass condition detected and then power switch turned off

P21CF13

P21D013

P21D113

P21D213

Port fuel injector assembly

The ECM performs fuel-cut when the engine speed is 1000 rpm or more.

Pass condition detected and then power switch turned 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 power 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 power switch turned off

P26CA12

P26CA31

P26CB71

Water inlet housing with water pump sub-assembly

When the engine coolant temperature reaches 105°C (221°F), the engine speed is limited to 2500 rpm or less.

Pass condition detected and then power switch turned off

P26CA14

Water inlet housing with water pump sub-assembly

  • When the engine coolant temperature reaches 105°C (221°F), the engine speed is limited to 2500 rpm or less.
  • The water inlet housing with water pump sub-assembly is controlled at a duty ratio of 85%.

Pass condition detected and then power switch turned off

P26CE37

Water inlet housing with water pump sub-assembly

The water inlet housing with water pump sub-assembly is temporarily operated and stopped in a repeating cycle.

  • Output duty ratio of the WPO terminal repeats a cycle of 0% for 0 to 5 seconds and then 85% for 5 to 30 seconds.

Pass condition detected and then power 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.
    EVAP System

    Freeze Frame Data

    See More:

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