Diagnosis Procedure

With CONSULT-III 

1. Start the engine.
2. Turn the 4WD shift switch AUTO=>4H=>4LO=>4H=>AUTO.
3. Check "LOCK POSI SEN" of CONSULT-III "DATA MONITOR" for "ALL MODE AWD/4WD".
   MONITOR ITEM CONDITION
   
   

   Monitor item	Condition	Status
   LOCK POSI SEN	4WD shift switch: AUTO or 4H	OPEN
   	4WD shift switch: 4L	LOCK
   	When transfer lock position sensor is unlearned.	UNLEAN
   	When the temperature of transfer lock position sensor is high.	HI TEMP
   	When transfer lock position sensor is malfunctioning.	ERROR
   	When transfer lock position sensor signal circuit is short. (Battery short)	BAT
   	When transfer lock position sensor signal circuit is short. (Ground short)	GND

   What is the item on "DATA MONITOR"? 

   OPEN: GO TO  7.

   LOCK: GO TO  7.

   UNLEAN: GO TO  6.

   HI TEMP: GO TO  5.

   ERROR: GO TO  5.

   BAT: GO TO 2.

   GND: GO TO 2.

1. Turn the ignition switch OFF.
2. Disconnect transfer position sensor harness connector.
3. Turn the ignition switch ON.
   CAUTION: Never start the engine.
4. Check the voltage between transfer position sensor harness connector terminals.
   VOLTAGE SPECIFICATION
   
   

   +		-	Voltage
   Transfer lock position sensor
   Connector	Terminal
   F40	1	2	Approx. 5 V

   Is the inspection result normal? 

   YES: GO TO  4.

   NO: GO TO 3.

1. Turn the ignition switch OFF.
2. Disconnect transfer control unit harness connector.
3. Check the continuity between transfer control unit harness connector and transfer lock position sensor harness connector.
   CONTINUITY SPECIFICATION
   
   

   Transfer control unit		Transfer lock position sensor		Continuity
   Connector	Terminal	Connector	Terminal
   E59	17	F40	1	Existed
   	30		2

4. Check the continuity between transfer lock position harness connector and ground.
   CONTINUITY SPECIFICATION
   
   

   Transfer lock position sensor		-	Continuity
   Connector	Terminal
   F40	1	Ground	Not existed

   Is the inspection result normal? 

   YES: GO TO  7.

   NO: Repair or replace error-detected parts.

1. Turn the ignition switch OFF.
2. Disconnect transfer control unit harness connector.
3. Check the continuity between transfer control unit harness connector and transfer lock position sensor harness connector.
   CONTINUITY SPECIFICATION
   
   

   Transfer control unit		Transfer lock position sensor		Continuity
   Connector	Terminal	Connector	Terminal
   E59	38	F40	3	Existed

4. Check the continuity between transfer lock position harness connector and ground.
   CONTINUITY SPECIFICATION
   
   

   Transfer lock position sensor		-	Continuity
   Connector	Terminal
   F40	3	Ground	Not existed

   Is the inspection result normal? 

   YES: GO TO 5.

   NO: Repair or replace error-detected parts.

1. Replace transfer lock position sensor. Refer to "REMOVAL AND INSTALLATION ".
2. Perform confirmation procedure again. Refer to "DTC LOGIC ".

   Is the inspection result normal? 

   YES: INSPECTION END

   NO: GO TO  7.

Transfer lock position sensor. Refer to "WORK PROCEDURE ".

GO TO 7.

Check the pin terminals for damage or loose connection with each harness connector.

Is the inspection result normal? 

YES: Replace transfer control unit. Refer to "REMOVAL AND INSTALLATION ".

NO: Repair or replace error-detected parts.