Primary Speed Sensor: Inspection

Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
Remove the clip (A), and loosen the clamps (B) and (C).

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Remove the air intake boot from the throttle body, and move it to the left side wheel apron.

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Disconnect the transmission radio ground terminal and transmission harness connector, and remove the harness clip.

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Remove the transmission case cover.

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Move the lock lever in the arrow direction while pressing the lock button, and disconnect the connector.

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Set the ST between TCM and transmission harness. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS)>General Description>CAUTION .
ST 18460AA040 CHECK BOARD
Connect the transmission radio ground terminal and transmission harness connector, and install the harness clip.
Tightening torque:

13 N.m (1.3 kgf-m, 9.6 ft-lb)
Install the air intake boot assembly. Ref. to INTAKE (INDUCTION) (H4DO)>Air Intake Boot>INSTALLATION .
Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
Set the probe of oscilloscope to the check board connector.
Connector & terminal:

(B54) No. 14 (+) - No. 42 (-):

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Start and warm up the engine.
Lift up the vehicle.
CAUTION: Lift up the vehicle until the tire bottom is 0.3 m (0.98 ft) or more above the ground.
Shift the select lever to "D" range.
Check the waveform and output voltage of the primary speed sensor with engine idling.
NOTE: The waveform cycle changes as the speed changes.

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