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.





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

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

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

(b) WAVEFORM 2
(1) Heated oxygen sensor signal

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

(c) WAVEFORM 3
(1) Fuel injector operation signal

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

(d) WAVEFORM 4
(1) Knock sensor signal

HINT:

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

HINT:
The wavelength becomes shorter as the engine rpm increases.
(f) WAVEFORM 6
(1) Igniter IGT signal (from ECM to igniter) (1)
(2) Igniter IGF signal (from igniter to ECM) (2)

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

(g) WAVEFORM 7
(1) Purge VSV for EVAP system operation signal

HINT:
If the waveform is not similar to that shown in the illustration, check the waveform again after idling for 10 minutes or more.
(h) WAVEFORM 8
(1) Vehicle speed signal

HINT:
(i) WAVEFORM 9
(1) Throttle drive motor operation signal (positive
terminal) 
HINT:
The duty ratio varies depending on the throttle actuator operation.

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

(k) WAVEFORM 11
1) Engine speed signal

HINT:
The wavelength becomes shorter as the engine rpm increases.
Problem symptoms table
Diagnosis systemPower Slide Door does not Fully Open
DESCRIPTION
When the LH / RH rear window is open 105 mm (5.91 in.) or more,
the slide door half-open stopper is
activated to force the slide door to stop at approximately 105 mm (5.91 in.)
from the fully open position.
This is caused by the jam protection function between the sli ...
DSP Error
DTC 44-78 DSP Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-78
An error occurs during the decode process (MP3/
WMA).
-
INSPECTION PROCEDURE
HINT:
After the inspection is completed, clear the DTCs.
NOTICE:
Thi ...
Lost Communication with Steering Angle Sensor
Module
DTC U0126 Lost Communication with Steering Angle Sensor
Module
DESCRIPTION
This circuit detects the angle and direction of the steering wheel and
automatically transmits a signal to
the skid control ECU and distance control ECU.
DTC No.
DTC Detection Condition
Trouble ...