Rav4 O2ft B1 S1 Percentage

Proceed to matrix chart of problem symptoms on page DI-19.

7. ENGINE OPERATING CONDITION NOTICE:

The values given below for "Normal Condition" are representative values, so a vehicle may still be normal even if its value from those listed here. So do not decide whether a part is faulty or not solely according to the "Normal Condition" here. CARB mandated signals:

TOYOTA hand-held tester display

Measurement Item

Normal Condition*

OPEN: Air-fuel ratio feedback stopped

CLOSED: Air-fuel ratio feedback operating

Idling after warming up: CLOSED

Current intake air volume as a proportion of max. intake air volume

Racing without load (2,500rpm): 18.8 - 46.4 %

COOLANT TEMP.

Engine Coolant Temp. Sensor Value

After warming up: 80 - 95°C (176 - 203°F)

SHORT FT #1

Short-term Fuel Trim Bank 1

0 ± 20%

LONG FT #1

Long-term Fuel Trim Bank 1

0 ± 20%

ENGINE SPD

Engine Speed

Idling: 700 - 800 rpm

VEHICLE SPD

Vehicle Speed

Vehicle Stopped: 0 km/h (0 mph)

Ignition Timing of Cylinder No. 1

Idling: BTDC 7 - 14°

INTAKE AIR

Intake Air Temp. Sensor Value

Equivalent to Ambient Temp.

MAP

Absolute Pressure Inside Intake Manifold

Racing without load (2,500 rpm):

19 - 47 kPa

THROTTLE POS

Voltage Output of Throttle Position Sensor Calculated as a percentage: 0 V ^ 0%, 5 V ^ 100%

Throttle Fully Closed: 6 - 16 % Throttle Fully Open: 64 - 98 %

O2S B1, S1

Voltage Output of Heated Oxygen Sensor Bank 1, Sensor 1

Idling: 0.1 - 0.9 V

O2FT B1, S1

Oxygen Sensor Fuel Trim Bank 1, Sensor 1 (Same as SHORT FT #1)

0 ± 20 %

O2S B1, S2

Voltage Output of Oxygen Sensor Bank 1, Sensor 2

Driving at 50 km/h (31 mph): 0.1 - 0.9 V

* : If no conditions are specifically stated for "Idling", it means the shift lever is at N or P position, the A/C switch is OFF and all accessory switches are OFF.

TOYOTA Enhanced Signals:

TOYOTA hand-held tester display

Measurement Item

Normal Condition*

MISFIRE RPM

Engine RPM for first misfire range

Misfire 0: 0 rpm

MISFIRE LOAD

Engine load for first misfire range

Misfire 0: 0 g/r

INJECTOR

Fuel injection time for cylinder No.1

Idling: 2.66 - 3.9 ms

IAC DUTY RATIO

Intake Air Control Valve Duty Ratio Opening ratio rotary solenoid type IAC valve

Idling: 25.5 - 43 %

STARTER SIG

Starter Signal

Cranking: ON

CTP SIG

Closed Throttle Position Signal

Throttle Fully Closed: ON

A/C SIG

A/C Switch Signal

A/C ON: ON

PNP SW

Park/Neutral Position Switch Signal

P or N position: ON

FC IDL

Fuel Cut Idle: Fuel cut when throttle valve fully closed, during deceleration

Fuel cut operating: ON

FC TAU

Fuel Cut TAU: Fuel cut during very light load

Fuel cut operating: ON

CYL#1, CYL#2, CYL#3, CYL#4

Abnormal revolution variation for each cylinder

0%

IGNITION

Total number of ignition for every 1,000 revolutions

0 - 2,000 rpm

FUEL PUMP

Fuel Pump Signal

Idling: ON

TOTAL FT B1

Total Fuel Trim Bank 1: Average value for fuel trim system of bank 1

Idling: 0.8 - 1.2 V

O2 LR B1, S1

Oxygen Sensor Lean Rich Bank 1, Sensor 1 Response time for oxygen sensor output to switch from lean to rich.

Idling after warmed up: 0 - 1,000 msec.

O2 RL B1, S1

Oxygen Sensor Rich Lean Bank 1, Sensor 1 Response time for oxygen sensor output to switch from rich to lean.

Idling after warmed up: 0 - 1,000 msec.

*: If no conditions are specifically stated for "ldling", it means the shift lever is at N or P position, the A/C switch is OFF and all accessory switches are OFF.

DI4LF-02

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