DTC C1426: Stop Switch OFF Stuck [04/2018 - 08/2021]: Description
The skid control ECU (brake actuator assembly) receives stop light switch assembly signals and uses them to determine whether or not the brakes are applied.
The skid control ECU (brake actuator assembly) has a detection circuit that it uses to detect a short in the stop light input signal circuit or stop light circuit when the stop light switch assembly is on (brake pedal depressed).
If the skid control ECU (brake actuator assembly) detects a short in this circuit, it will store this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1426 | Stop Switch OFF Stuck | Either of the following is detected when the vehicle speed of 3 km/h (2 mph) or more:
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DTC DETECTION CONDITIONS: C1426
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | The vehicle speed of 3 km/h (2 mph) or more. | ◦ | ◦ |
| The stop light switch assembly is off. | ◦ | ◦ | |
| Malfunction Status | The stop light switch assembly is judged to be on based on the master cylinder pressure value. | ◦ | - |
| The master cylinder pressure is more than 8 MPa (81.6 kgf/cm2 , 1160 psi). | - | ◦ | |
| Detection Time | 3 seconds or more | 3 seconds 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 are met.