DTC P0850-12: Park/Neutral Switch Circuit Short to Battery; DTC P0850-14: Park/Neutral Switch Circuit Short to Ground or Open [10/2022 - ]: Description

The engine stop and start ECU detects malfunctions by comparing the conditions of the shift position signal and NSW signal. If a malfunction is detected, the engine stop and start ECU stores DTC P0850-12 or P0850-14.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Warning Indicate	Note
P0850-12	Park/Neutral Switch Circuit Short to Battery	Both of the following conditions are met for 15 seconds or more (2 trip detection logic): Ignition switch ON NSW signal is off with the shift lever in P or N	Park/neutral position switch assembly Engine stop and start ECU ECM Wire harness or connector	Does not come on	Does not come on	SAE Code: P0852
P0850-14	Park/Neutral Switch Circuit Short to Ground or Open	Both of the following conditions are met for 2 seconds or more (2 trip detection logic): Ignition switch ON NSW signal is on with the shift lever in P or N	Park/neutral position switch assembly Engine stop and start ECU ECM Wire harness or connector	Does not come on	Does not come on	SAE Code: P0851