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Home >> Lexus >> 2017 >> RX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Dynamic Torque Control AWD System - Diagnostic Codes & Circuit Tests) >> Dynamic Torque Control AWD System >> DTC C1298: Linear Solenoid Circuit [08/2019 - ] >> Description

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

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The 4WD ECU assembly receives signals from each sensor. The signals are used to control the clutch fluid pressure to vary the distribution of torque in accordance with the driving conditions.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1298 Linear Solenoid Circuit When all of the following continue for 1 second or more:
  • The voltage at terminal IG 1 is 9.5 V or more.
  • The target current for the 4WD linear solenoid (electro magnetic control coupling sub-assembly) is either 0 A or 0.8 A or more.
  • An open or short is detected in the linear solenoid circuit.
  • Wire harness and connector
  • 4WD linear solenoid (Electro magnetic control coupling sub-assembly)
  • 4WD ECU assembly