1. Remove the vehicle speed sensor.
(See VEHICLE SPEED SENSOR REMOVAL/INSTALLATION (WITHOUT ABS) [G35M-R].)
2. Measure the voltage between the vehicle speed sensor terminals while the gear is turning.
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Meter needle
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Action
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|---|---|
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Moves slightly under 5 V (AC)
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Inspect wiring harness between instrument cluster and vehicle speedometer sensor.
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Does not move
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Replace vehicle speed sensor.
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3. Install the vehicle speed sensor.
(See VEHICLE SPEED SENSOR REMOVAL/INSTALLATION (WITHOUT ABS) [G35M-R].)