Primary Speed Sensor: Inspection

Disconnect the ground cable from battery. Ref. to REPAIR CONTENTS>NOTE>SAFETY .
Remove the clip from the air intake boot, and loosen the clamp.

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Remove the air intake boot, and place it aside so that it does not interfere with the work.
NOTE: Be careful not to pull out the PCV hose.

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Remove the transmission radio ground terminal.

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Disconnect the transmission harness connector.

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Remove the transmission case cover (small).

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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 TRANSMISSION (DIAGNOSTICS)>General Description>CAUTION .
Preparation tool:

ST: CHECK BOARD (18460AA040)
Connect the transmission radio ground terminal and transmission harness connector.
Tightening torque:

32.3 N.m (3.3kgf-m, 23.8ft-lb)
Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO)>Air Intake Boot>INSTALLATION .
Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>SAFETY .
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 (0.98ft) or more above the ground.
Shift the select lever to the "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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