lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 4209 > < Component Tests and General Diagnostics|Page 4207
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HINT
If the waveform is not similar to that shown in the illustration, check the waveform again after idling for 10 minutes or more.

(i) WAVEFORM 9

(1) Vehicle speed signal

HINT
*

The wavelength becomes shorter as the vehicle speed increases.

*

Depending on the vehicle, the output waveform voltage may rise to 12 V if influenced by optionally installed systems.

(j) WAVEFORM 10

(1) Throttle actuator operation signal (positive terminal)

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

(k) WAVEFORM 11

(1) Throttle actuator operation signal (negative terminal)

HINT

Component Tests and General Diagnostics|Page 4209 > < Component Tests and General Diagnostics|Page 4207