P1899

Test 1 - 2:

Test 3 - 6:

SYMPTOM
P1899-P/N SWITCH STUCK IN PARK OR IN GEAR

WHEN MONITORED
Continuously with the transmission in Park, Neutral, or Drive and NOT in Limp-in mode.

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

POSSIBLE CAUSES
- TRS performance
- (T41) TRS signal circuit open
- (T41) TRS signal circuit shorted to ground
- (T41) TRS signal circuit shorted to voltage
- TRS internal failure
- PCM