P1899

Tests 1 - 3:

Tests 4 - 7:

SYMPTOM
P1899 PARK/NEUTRAL 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 and incorrect park/neutral switch state for a given mode of vehicle operation.

POSSIBLE CAUSES
- Park/Neutral position switch wiring harness observable defect
- Park/Neutral position switch
- Park/Neutral position switch sense circuit open
- Park/Neutral position switch sense circuit shorted to ground
- Park/Neutral position switch stuck
- PCM