Toyota RAV4 manuals

Toyota Sienna Service Manual: Terminals of ECM

1. SFI SYSTEM

SFI SYSTEM

HINT: The standard normal voltage between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated.

The check results should be compared with the standard normal voltage for that pair of terminals, listed in the "Specified Condition" column.

The illustration above can be used as a reference to identify the ECM terminal locations.

SFI SYSTEM

SFI SYSTEM

SFI SYSTEM

SFI SYSTEM

SFI SYSTEM

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

SFI SYSTEM

  1.  WAVEFORM 1
  1.  Camshaft Timing Oil Control Valve (OCV) operation signal

SFI SYSTEM

HINT: The wavelength becomes shorter as the engine rpm increases.

SFI SYSTEM

  1. WAVEFORM 2
  1.  Heated oxygen sensor signal

SFI SYSTEM

HINT: In the DATA LIST, item O2S B1S2 shows the ECM input values from the heated oxygen sensor.

SFI SYSTEM

  1.  WAVEFORM 3
  1.  Fuel injector operation signal

SFI SYSTEM

HINT: The wavelength becomes shorter as the engine rpm increases.

SFI SYSTEM

  1.  WAVEFORM 4
  1.  Knock sensor signal

SFI SYSTEM

HINT:

SFI SYSTEM

  1.  WAVEFORM 5
  1.  Variable Valve Timing (VVT) sensor signal (1)
  2.  Crankshaft position sensor signal (2)

SFI SYSTEM

HINT: The wavelength becomes shorter as the engine rpm increases.

SFI SYSTEM

  1. WAVEFORM 6
  1.  Igniter IGT signal (from ECM to igniter) (1)
  2.  Igniter IGF signal (from igniter to ECM) (2)

SFI SYSTEM

HINT: The wavelength becomes shorter as the engine rpm increases.

SFI SYSTEM

  1.  WAVEFORM 7
  1.  Purge VSV for EVAP system operation signal

SFI SYSTEM

HINT: If the waveform is not similar to that shown in the illustration, check the waveform again after idling for 10 minutes or more.

SFI SYSTEM

  1.  WAVEFORM 8
  1.  Vehicle speed signal

SFI SYSTEM

HINT:

SFI SYSTEM

  1.  WAVEFORM 9
  1.  Throttle drive motor operation signal (positive terminal)

SFI SYSTEM

HINT: The duty ratio varies depending on the throttle actuator operation.

SFI SYSTEM

  1. WAVEFORM 10
  1.  Throttle drive motor operation signal (negative terminal)

SFI SYSTEM

HINT: The duty ratio varies depending on the throttle actuator operation.

SFI SYSTEM

  1.  WAVEFORM 11
  1. Engine speed signal

SFI SYSTEM

HINT: The wavelength becomes shorter as the engine rpm increases.

Problem symptoms table
HINT: When a malfunction is not confirmed by a DTC (Diagnostic Trouble Code) check and the cause of problem cannot be identified through a basic inspection, troubleshoot according to the priority ...

Diagnosis system
1. DESCRIPTION  When troubleshooting OBD II (On-Board Diagnostics) vehicles, an intelligent tester (complying with SAE J1987) must be connected to the DLC3 (Data Link Connector 3) o ...

Other materials:

Installation
1. INSTALL FRONT SUSPENSION ARM SUBASSEMBLY LOWER NO.1 LH (a) Install the front lower arm bush stopper to the front suspension arm sub-assembly lower No.1 LH. (b) Install the bolt and nut to the rear side of the front suspension arm sub-assembly lower No.1 LH. Torque: 206 N*m (2,100 kgf ...

Reassembly
1. INSTALL NO. 1 SEAT CUSHION FRAME SUBASSEMBLY LH  Install the seat cushion frame with the bolt. Torque: Except 7-Passenger RH, M8 bolt 20.6 N*m (210 kgf*cm, 15 ft.*lbf) M10 bolt 41 N*m (418 kgf*cm, 30 ft.*lbf) 2. INSTALL RECLINING CONTROL LINK SUBASSEMBLY LH  Install ...

Wireless Door Lock Tuner Circuit Malfunction
DTC B1242 Wireless Door Lock Tuner Circuit Malfunction DESCRIPTION When a RDA signal is not input to the door control receiver within 1 second after the multiplex network body ECU outputs a PRG signal, this DTC is set. DTC No. DTC Detection Condition Suspected Area ...

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