P1517

AD : P1516, P1517. P/N Switch Starting/Driving Malfunctions.

AD1 : CHECK THE P/N INPUT TO THE PCM.
1. Select PARK.
2. Set the ignition switch to the ON position.
3. Measure the voltage at the PCM electrical connector PI01, pin 31 (B)

Is the voltage greater than 10 volts?

Yes
Install a new PCM.

No
Repair the circuit between the PCM electrical connector PI01, pin 31 (B) and the ignition switch. On automatic transmission vehicles, this circuit includes the TR sensor, Central Junction Fuse Box, Ignition relay, and Inertia switch. On NAS manual transmission vehicles, this circuit also includes the Clutch Safety Switch.
For additional information, refer to wiring diagrams. CLEAR the DTC. TEST the system for normal operation.