DTC P17FB-62: 4WD/AWD Transfer Case H-L Motor Limit Switch Signal Compare Failure [12/2021 - ]: Procedure

Pre-procedure1

1. Disconnect the B8 4 wheel drive control ECU connector.
2. Disconnect the C48 high-low shift actuator (transfer shift actuator assembly) connector.

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B8-6 (HL1) - C48-3 (HL1)	Always	Below 1 Ω
   B8-5 (HL2) - C48-5 (HL2)	Always	Below 1 Ω
   B8-15 (HL3) - C48-4 (HL3)	Always	Below 1 Ω
   C48-6 (GND) - Body ground	Always	Below 1 Ω
   B8-6 (HL1) or C48-3 (HL1) - Body ground	Always	10 kΩ or higher
   B8-5 (HL2) or C48-5 (HL2) - Body ground	Always	10 kΩ or higher
   B8-15 (HL3) or C48-4 (HL3) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. Connect the C48 high-low shift actuator (transfer shift actuator assembly) connector.
5. Connect the B8 4 wheel drive control ECU connector.

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

Pre-procedure1

1. Disconnect the C48 high-low shift actuator (transfer shift actuator assembly) connector.

   Procedure1

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   C48-3 (HL1) - Body ground	Ignition switch ON	10 to 16 V
   C48-5 (HL2) - Body ground	Ignition switch ON	10 to 16 V
   C48-4 (HL3) - Body ground	Ignition switch ON	10 to 16 V

   Result

   Proceed to
   OK
   NG

   Post-procedure1

3. Connect the C48 high-low shift actuator (transfer shift actuator assembly) connector.

Result: 

OK 

REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY. Refer to  DISASSEMBLY [12/2021 - ] 

Result: 

NG 

REPLACE 4 WHEEL DRIVE CONTROL ECU. Refer to  REMOVAL [12/2021 - ]