Toyota RAV4 Quiz
2Az-fe engine mechanical

Terminals of ecm

In this manual: 2Az-fe engine mechanical
Introduction — 37Interior — 12Exterior — 432Az-fe engine mechanical — 1552Az-fe ignition — 182Az-fe charging — 232Az-fe emission control — 82az-fe exhaust — 32Az-fe fuel — 72Az-fe lubrication — 4Brake — 17Brake control — 63U140f automatic transaxle — 59Instrument panel — 8Suspension — 18Drive shaft — 23Axle — 6Tire and wheel — 30Air conditioning — 93Lighting — 45Cruise control — 21Differential — 12Door lock — 31Engine immobiliser — 21Horn — 5Can communication — 27Mirror — 5Parking brake — 5Power steering — 27Propeller shaft — 3Seat — 29Seat belt — 27Sliding roof — 25Steering column — 6Wiper and washer — 11Supplemental restraint system — 95Other system — 5Maintenance — 14
~2min read
Toyota RAV4. Terminals of ecm

Hint:

The standard normal voltage between each pair of ecm terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the specified condition column. The illustration above can be used as a reference to identify the ecm terminal locations.

Toyota RAV4. Terminals of ecm

Toyota RAV4. Terminals of ecm

Toyota RAV4. Terminals of ecm

Hint:

*: The ecm terminal voltage is constant regardless of the output voltage from the sensor.

Waveform 1 Camshaft
timing oil control valve (ocv)
  1. Waveform 2
Heated oxygen
sensor
Hint:

In data list, item o2s b1 s2 shows the ecm input values from the heated oxygen sensor.

  1. Waveform 3
Injector no.
1 (To no. 4) Injection signal
Hint:

The wavelength becomes shorter as the engine rpm increases.

  1. Waveform 4
Knock sensor

Hint:
  • The wavelength becomes shorter as the engine rpm increases.
  • The waveforms and amplitudes displayed differ slightly depending on the vehicle.
  1. Waveform 5
Crankshaft
position sensor and camshaft position sensor
Hint:

The wavelength becomes shorter as the engine rpm increases.

  1. Waveform 6
Igniter igt
signal (from ecm to igniter) and igniter igf signal (from igniter to ecm)
Hint:

The wavelength becomes shorter as the engine rpm increases.

  1. Waveform 7
Purge vsv

Hint:

If the waveform is not similar to the illustration, check the waveform again after idling for 10 minutes or more.

  1. Waveform 8
Vehicle speed
signal
Hint:

The wavelength becomes shorter as the vehicle speed increases.

  1. Waveform 9
Throttle
actuator positive terminal
Hint:

The duty ratio varies depending on the throttle actuator operation.

  1. Waveform 10
Throttle
actuator negative terminal
Hint:

The duty ratio varies depending on the throttle actuator operation.

  1. Waveform 11
Engine speed
signal
Hint:

The wavelength becomes shorter as the engine rpm increases.

  1. Waveform 12
Can
communication signal
Hint:

The waveform varies depending on the can communication signal.

  1. Waveform 13
Can
communication signal
Hint:

The waveform varies depending on the can communication signal.

  1. Waveform 14
Generator

Hint:

A constant value is not output, as the duty ratio varies depending on the electrical load and battery condition.

  1. Waveform 15
Generator

Hint:

A constant value is not output, as the duty ratio varies depending on the electrical load and battery condition.

  1. Waveform 16
Generator

Hint:

A constant value is not output, as the duty ratio varies depending on the electrical load and battery condition.

Test yourself

A quick Toyota RAV4 quiz: every answer comes with an explanation and a link to the manual page.