Code P132, Knock Sensor Circuit Failure: Notes
WARNING: This page is about a different car, the 1995 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
This test checks for knock sensor wiring problem. If circuit No. 496 becomes open or shorted, voltage will either increase to greater than 4.2 volts or drop to less than 0.3 volt. If either of these conditions are met for 0.4 second, Code P132 will set.