1A-192 Engine General Information and Diagnosis:
Reference waveform No.28
Oil control valve signal with engine racing
Reference waveform No.29
CAN communication line signal from each control
module with ignition switch turned ON
Reference waveform No.30
Ignition pulse (engine revolution) signal (2) with engine
idling
Reference waveform No.31
Ignition pulse (engine revolution) signal (2) with engine
idling
Measurement
terminal
CH1: “C37-60” to “C37-59”
Oscilloscope
setting
CH1: 5 V/DIV
TIME: 400 µs/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Vehicle driving at 20 km/h (12
mph) and depress accelerator
pedal fully
1. Accelerator pedal depressed fully
2. Accelerator pedal depressed partially
3. Oil control valve signal
4. ON signal
5. OFF signal
Measurement
terminal
CH1: “E23-3” to “C37-58”
CH2: “E23-18” to “C37-58”
Oscilloscope
setting
CH1: 1 V/DIV, CH2: 1 V/DIV
TIME: 40 µs/DIV
Measurement
condition
Ignition switch turned ON
(Signal pattern is depending on
engine condition)
1. CAN communication line signal (High)
2. CAN communication line signal (Low)
I4RS0B110075-01
I4RS0B110076-01
Measurement
terminal
CH1: “C37-20” to “C37-58”
CH2: “E23-4” to “C37-58”
Oscilloscope
setting
CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 40 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 720° crank angle
Measurement
terminal
CH1: “C37-20” to “C37-58”
CH2: “E23-4” to “C37-58”
Oscilloscope
setting
CH1: 5 V/DIV, CH2: 5 V/DIV
TIME: 10 ms/DIV
Measurement
condition
• After warmed up to normal
operating temperature
• Engine at specified idle speed
1. Cylinder reference signal (CMP reference signal)
3. 360° crank angle
4. 2 to 4 msec.
5. 10 – 14 V
I6RS0C110036-01
I6RS0C110037-01