lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 4207 > < Component Tests and General Diagnostics|Page 4205
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In the Data List, item O2S B1S2 and O2S B2S2 shows the ECM values from the heated oxygen sensor.

(c) WAVEFORM 3

(1) Fuel injector assembly operation signal

HINT
The wavelength becomes shorter as the engine speed increases.

(d) WAVEFORM 4

(1) Knock control sensor signal

HINT
*

The wavelength becomes shorter as the engine speed increases.

*

The waveforms and amplitudes displayed differ slightly depending on the vehicle.

(e) WAVEFORM 5

(1) Variable Valve Timing (VVT) sensor for exhaust side signal (A)

(2) Crankshaft position sensor signal (B)

HINT

Component Tests and General Diagnostics|Page 4207 > < Component Tests and General Diagnostics|Page 4205