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

1. Disconnect the F47 4 wheel drive control ECU connector.
2. Disconnect the B62 transfer shift actuator assembly connector.
3. Disconnect the F51 ECM connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F47-11 (TL1) - B62-3 (TL1)	Always	Below 1 Ω
   F47-10 (TL2) - B62-4 (TL2)	Always	Below 1 Ω
   F47-9 (TL3) - B62-5 (TL3)	Always	Below 1 Ω
   F47-1 (4WD) - B62-12 (B)	Always	Below 1 Ω
   F47-3 (4WDL) - B62-9 (L4)	Always	Below 1 Ω
   B62-6 (GND1) - Body ground	Always	Below 1 Ω
   F47-11 (TL1) or B62-3 (TL1) - Body ground	Always	10 kΩ or higher
   F47-10 (TL2) or B62-4 (TL2) - Body ground	Always	10 kΩ or higher
   F47-9 (TL3) or B62-5 (TL3) - Body ground	Always	10 kΩ or higher
   F47-1 (4WD) or B62-12 (B) - Body ground	Always	10 kΩ or higher
   F47-3 (4WDL) or B62-9 (L4) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Disconnect the B62 transfer shift actuator assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Transfer Shift Actuator Assembly)

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   B62-3 (TL1) - Body ground	Ignition switch ON	10 to 14 V
   B62-4 (TL2) - Body ground	Ignition switch ON	10 to 14 V
   B62-5 (TL3) - Body ground	Ignition switch ON	10 to 14 V
   B62-9 (L4) - Body ground	Ignition switch ON	10 to 14 V
   B62-12 (B) - Body ground	Ignition switch ON	10 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY. Refer to  DISASSEMBLY [08/2019 - ] 

Result: 

NG 

REPLACE 4 WHEEL DRIVE CONTROL ECU. Refer to  REMOVAL [08/2019 - ]