Secondary Speed Sensor: Inspection

Remove the instrument panel lower cover. Refer to INSTRUMENT PANEL LOWER COVER EI-63, REMOVAL, Instrument Panel Lower Cover.
Set the probe of oscilloscope to TCM harness connector.
Connector & terminal

(B54) No. 7 (+) - No. 14 (-):

Fig 1: Identifying Instrument Panel Lower Cover
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Start and warm up the engine.
Check the waveform of secondary speed sensor with engine idling.

Fig 2: Identifying Curve Between Secondary Speed Sensor And Engine Idling
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