Circuit/System Verification
- Ignition ON, observe the scan tool PNP Switch parameter while shifting the transmission. The reading should change between Park/Neutral and In Gear.
- If not the specified values, refer to Park Switch Malfunction below.
- Transmission in park, attempt to start the vehicle. The starter relay should click and the engine should begin cranking.
- If the crank relay does not click or the engine does not crank, refer to CRNK Relay Malfunction .