DTC C1298: Linear Solenoid Circuit [08/2019 - ]: Procedure

1. Disconnect the R10 4WD ECU assembly connector.
2. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   R10-2 (SLC+) - R10-1 (SLC-)	20°C (68°F)	1.75 to 2.15 Ω
   R10-2 (SLC+) - Body ground	Always	10 kΩ or higher
   R10-1 (SLC-) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE 4WD ECU ASSEMBLY. Refer to  COMPONENTS [09/2015 - ] 

Result: 

NG 

See step  2

1. Disconnect the T 4 4WD linear solenoid (electro magnetic control coupling sub-assembly) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (4WD Linear Solenoid (Electro Magnetic Control Coupling Sub-assembly))

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   1 (BSF) - 2 (SLC)	20°C (68°F)	1.75 to 2.15 Ω
   1 (BSF) - Body ground	Always	10 kΩ or higher
   2 (SLC) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

NG 

REPLACE ELECTRO MAGNETIC CONTROL COUPLING SUB-ASSEMBLY. Refer to  COMPONENTS [12/2017 - ]