speed sensor question

[deermagnet]

Adam, the Vehicle Speed Sensor is mentioned in a couple places in the manual. This is where it gives a good description and how to inspect it-
Engine>6VE1 3.5L Engine Driveability and Emissions>On Vehicle Service>Vehicle Speed Sensor (VSS)

The part # is 8-97181-578-0 or 8-97181-579-0.

The bad news is it costs over $300.
So check and clean the electrical connection first and somehow try to make sure the VSS is the problem. Ya don't wanna spend that much and find out it wasn't the problem part. It might be worth it to go to one of the Isuzu shops in the NYC area.

There is a way your mechanic can check the VSS by just using a digital volt meter. The process is explained in the manual at DTC P0502 VSS Circuit Low Input. Are you getting any check engine light codes?

Mark