DTC P17AC: Transfer Shift Motor Limit Switch Circuit [08/2019 - ]: Description

When the transfer shift actuator assembly is switching between high (H4) and low (L4), the HL1 and HL2 terminals are in one of the ON/OFF combinations listed in the table below.

Terminal	Mode
Terminal	HIGH (H4)	Switching	LOW (L4)
HL1	OFF	ON	ON
HL2	ON	ON	OFF

A malfunction is detected depending on the combination of the 2 circuits that make up the high-low transfer limit switch.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
P17AC	Transfer Shift Motor Limit Switch Circuit	When switching between high and low (high-low transfer shift motor operating) while the engine switch is turned on (IG) or directly after the engine switch is turned on (IG) The combination of HL1 and HL2 does not match 0.05 seconds or more (if directly after engine switch is turned on (IG), 1 second or more) 1 trip detection logic	Wire harness and connector 4 wheel drive control ECU Transfer shift actuator assembly