P1899

Tests 1 - 2:

Tests 3 - 6:

Tests 7 - 9:

SYMPTOM
P1899 - PARK/NEUTRAL POSITION SWITCH STUCK IN PARK OR IN GEAR

WHEN MONITORED
With the transmission in Park, Neutral, or Drive and not in limp-in mode.

SET CONDITION
This code is set if the PCM detects an incorrect Park/Neutral position switch state for a given mode of vehicle operation.

POSSIBLE CAUSES
- Park/Neutral position switch wiring harness
- Park/Neutral position switch sense circuit open
- Park/Neutral position switch sense circuit shorted to ground
- Park/Neutral position switch stuck
- Park/Neutral position switch
- Powertrain Control Module