Apparently, there is none. They started using them in 1996.
It is at the front of the engine, below and to the left of the damper.
It is located on the intake manifold near the thermostat housing.
This sensor is at top rear of engine, next to distributor.
The 2002 Chevrolet blazer speed sensor is located on the side of the transmission. The speed sensor will be on the right hand side of the transmission.
Behind the alternator on the driver side!
There are many sensors that can trip the check engine light to come on.
The oil pressure sensor, on a 2008 Chevrolet Impala, is located on the front of the engine. The sensor will be just above the oil pan.
It is on the throttle plate right across from the throttle cable.
It is on the driver's side head by the back spark plug.
That year did not have one. Was not used until 96 and up.
The coolant temperature sensor, on a 2005 Chevrolet trailblazer 4.2 liter engine, is located just above the thermostat housing. The thermostat housing is located in the front of the engine.
it is located on the side of the engine block.