DTC P0705-13: Transmission Range Sensor "A" Circuit Open; DTC P0705-62: Transmission Range Sensor "A" Signal Compare Failure [10/2017 - 09/2020]: Description

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2024 Lexus IS 350, 2024 Lexus IS 300, 2023 Lexus IS 350, 2023 Lexus IS 300, and 2022 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

The park/neutral position switch assembly detects the shift lever position and sends a signal to the ECM.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P0705-13	Transmission Range Sensor "A" Circuit Open	When the engine switch is on (IG) and battery voltage is 8 V or more, NSW, P, R, N and D input signals are all OFF simultaneously for 60 seconds or more (2-trip detection logic).	Open or short in park/neutral position switch assembly circuit Park/neutral position switch assembly ECM	Comes on	DTC stored	SAE Code: P0705
P0705-62	Transmission Range Sensor "A" Signal Compare Failure	When the engine switch is on (IG) and battery voltage is 8 V or more, 2 or more of the following signals are ON simultaneously for 2 seconds or more (2-trip detection logic). NSW, P or N input signal R input signal D input signal	Open or short in park/neutral position switch assembly circuit Park/neutral position switch assembly ECM	Comes on	DTC stored	SAE Code: P0705

DTC DETECTION CONDITION PATTERNS (P0705-62):

		Vehicle Condition
		Pattern 1	Pattern 2	Pattern 3	Pattern 4
Diagnostic Condition	Engine switch is on (IG)	◦	◦	◦	◦
Diagnostic Condition	Battery voltage is 8 V or more	◦	◦	◦	◦
Malfunction Condition	NSW input signal is ON	◦	◦	-	-
	P input signal is ON	-	-	◦	◦
	R input signal is ON	-	◦	-	◦
	N input signal is ON	-	-	-	-
	D input signal is ON	◦	-	◦	-
Duration		2 seconds or more	2 seconds or more	2 seconds or more	2 seconds or more
Detection Logic		2-trip detection logic	2-trip detection logic	2-trip detection logic	2-trip detection logic

DTC DETECTION CONDITION PATTERNS (P0705-62):

		Vehicle Condition
		Pattern 5	Pattern 6	Pattern 7
Diagnostic Condition	Engine switch is on (IG)	◦	◦	◦
Diagnostic Condition	Battery voltage is 8 V or more	◦	◦	◦
Malfunction Condition	NSW input signal is ON	-	-	-
	P input signal is ON	-	-	-
	R input signal is ON	-	◦	◦
	N input signal is ON	◦	◦	-
	D input signal is ON	◦	-	◦
Duration		2 seconds or more	2 seconds or more	2 seconds or more
Detection Logic		2-trip detection logic	2-trip detection logic	2-trip detection logic

HINT:

DTC P0705-62 is stored when any of the above detection patterns is met.