Neutral Safety Switch: Description and Operation

When closed, the case-grounded [1][2]Park/Neutral position switch provides a ground path on circuit T41 for the coil side of the engine starter motor relay Circuit A41 from the ignition switch provides battery voltage to the coil side of the relay.

Circuit T41 splices to cavity 30 of the Powertrain Control Module (PCM). The [1][2]Park/Neutral position switch provides an input to the PCM.