DTC C1298: Linear Solenoid Circuit [08/2020 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
The 4WD ECU assembly receives signals from each sensor to control clutch fluid pressure for limiting the center differential operation, which distributes torque according to 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:
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DTC DETECTION CONDITIONS: C1298
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | IG1 voltage is 9.5 V or more, the current requested by the 4WD linear solenoid (transmission coupling assembly) is 0 A. | ◦ | - |
| IG1 voltage is 9.5 V or more, the current requested by the 4WD linear solenoid (transmission coupling assembly) is greater than 0.8 A. | - | ◦ | |
| Malfunction Status | Short occurs in the 4WD linear solenoid circuit. | ◦ | - |
| Open occurs in the 4WD linear solenoid circuit. | - | ◦ | |
| Detection Time | 1 second or more | 1 second or more | |
| Number of Trips | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above is met.