Toyota Venza manuals

Toyota Venza: 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

P0011

P0015

VVT system

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

Pass condition detected

P0031

P0032

P101D

Air fuel ratio sensor heater

The ECM turns off the air fuel ratio sensor heater.

Ignition switch off

P0037

P0038

P102D

Heated oxygen sensor heater

The ECM turns off the heated oxygen sensor heater.

Ignition switch off

P0102

P0103

Mass air flow meter

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

Pass condition detected

P0112

P0113

Intake air temperature sensor

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

Pass condition detected

P0115

P0117

P0118

Engine coolant temperature sensor

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

Pass condition detected

P0120

P0121

P0122

P0123

P0220

P0222

P0223

P0604

P0606

P060A

P060B

P060D

P060E

P0657

P1607

P2102

P2103

P2111

P2112

P2118

P2119

P2135

Electronic throttle control system

The ECM cuts off throttle actuator current and the throttle valve is returned to a 6° 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 continue at minimal speed*1.

Pass condition detected and then ignition switch turned off

P0300

P0301

P0302

P0303

P0304

*2

  • Fuel injector
  • 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 malfunction cylinder.

Pass condition detected and then ignition switch turned off

P0327

P0328

Knock sensor

The ECM sets the ignition timing to maximum retard.

Ignition switch off

P0351 to P0354

Ignition coil

The ECM cuts the fuel.

Pass condition detected

P2120

P2121

P2122

P2123

P2125

P2127

P2128

P2138

Accelerator pedal sensor assembly

The accelerator pedal sensor assembly 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

P2237

P2238

P2239

P2252

P2253

Air fuel ratio sensor

  • Air fuel ratio feedback control is stopped.
  • Current to the air fuel ratio sensor heater is cut.

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.
Freeze Frame Data
FREEZE FRAME DATA 1. DESCRIPTION The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any p ...

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