AWD Control Switch Circuit [12/2012 - ]: Procedure

1. Remove the AWD lock switch (differential lock switch).

   Refer to REMOVAL [12/2012 - ]

2. Inspect the AWD lock switch (differential lock switch).

   Refer to INSPECTION [12/2012 - ]

Result: 

NG 

REPLACE DIFFERENTIAL LOCK SWITCH:  REMOVAL [12/2012 - ] 

Result: 

OK 

See step  2

1. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G50-6 (GND) - Body ground	Always	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to AWD Lock Switch [Differential Lock Switch])

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Reinstall the AWD lock switch (differential lock switch).

   Refer to INSTALLATION [12/2012 - ]

2. Disconnect the 4WD ECU assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   G86-10 (4WDS) - Body ground	AWD lock switch on (Push)	Below 1 Ω
   	AWD lock switch off (Release)	10 kΩ or higher

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to 4WD ECU Assembly)

Result: 

OK 

REPLACE 4WD ECU ASSEMBLY:  REMOVAL [12/2012 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR