Engine General Information and Diagnosis: 1A-78
1. Reference waveform No.1
Oil control valve signal at ignition switch ON
2. Reference waveform No.2
Oil control valve signal at vehicle driving
3. Reference waveform No.3
Heated oxygen sensor-1 signal at engine idling
4. Reference waveform No.4
Heated oxygen sensor-1 heater signal at engine idling
Measurement
terminal
CH1: G04-12 to G04-21
Oscilloscope setting CH1: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition
At the moment of the ignition
switch ON turned on
1. Camshaft position oil control valve
Measurement
terminal
CH1: G04-12 to G04-21
Oscilloscope setting CH1: 5 V/DIV
TIME: 2 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Drive vehicle at 20 km/h (12
mil/h) and depress accelerator
pedal fully
[A]. Accelerator pedal depress fully
[B]. Accelerator pedal depress partially
1. Oil control valve signal
I3RH0B110008-01
I3RH0B110009-01
Measurement
terminal
CH1: C41-13 to C41-10
CH2: C41-7 to C41-1
Oscilloscope setting CH1: 500 mV/DIV, CH2: 20 V/DIV
TIME: 1 s/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Heated oxygen sensor-1 signal
2. Heated oxygen sensor-1 heater signal
Measurement
terminal
CH1: C41-13 to C41-10
CH2: C41-7 to C41-1
Oscilloscope setting CH1: 500 mV/DIV, CH2: 10 V/DIV
TIME: 200 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Heated oxygen sensor-1 signal
2. Heated oxygen sensor-1 heater signal
I3RH0A110028-01
I3RH0A110029-01
To Next Page
Loading...
Need help?
General
