Problem Symptoms Table [08/2015 - ]

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM

Symptom	Suspected Area	Go to
Switch from 2WD (H2) to 4WD HIGH (H4F) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	A.D.D. actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
Switch from 4WD HIGH (H4F) to 2WD (H2) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	A.D.D. actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
Switch from 4WD HIGH (H4F) to 4WD LOW (L4F) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
Switch from 4WD LOW (L4F) to 4WD HIGH (H4F) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
Switch from 4WD HIGH (H4F) to 4WD HIGH (H4L) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	Center differential lock switch	Refer to INSPECTION [08/2015 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
Switch from 4WD HIGH (H4L) to 4WD HIGH (H4F) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	Center differential lock switch	Refer to INSPECTION [08/2015 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
Switch from 4WD LOW (L4F) to 4WD LOW (L4L) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	Center differential lock switch	Refer to INSPECTION [08/2015 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
Switch from 4WD LOW (L4L) to 4WD LOW (L4F) impossible	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Transfer shift actuator	See step [08/2015 - 08/2017] See step [08/2017 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	Center differential lock switch	Refer to INSPECTION [08/2015 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Transfer assembly	Refer to INSPECTION [08/2015 - ]
4HI indicator light does not come on	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	4WD fuse	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
4HI indicator light remains on	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
4LO indicator light does not come on	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	4WD fuse	See step 2 See step 2
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
4HI indicator light remains on	4WD control switch	Refer to ON-VEHICLE INSPECTION [08/2015 - 08/2017] Refer to ON-VEHICLE INSPECTION [08/2017 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
CENTER DIFF. indicator light does not come on	Harness or connector	Refer to INSPECTION [08/2015 - 08/2017] Refer to INSPECTION [08/2017 - ]
	4WD fuse	See step [08/2015 - 08/2017] See step [08/2017 - ]
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
	CAN communication system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - 08/2019] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]
	Center differential lock switch	Refer to INSPECTION [08/2015 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]
CENTER DIFF. light remains on	Center differential lock switch	Refer to INSPECTION [08/2015 - ]
	4WD control ECU	Refer to TERMINALS OF ECU [08/2015 - ]
	Combination meter	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]