DTC C1441: Performance Decline of Brake Function [08/2015 - ]: Description
The skid control ECU judges brake failure conditions have occurred based on signals from the brake pedal load sensing switch and master cylinder pressure sensor.
NOTE:
Do not intentionally stop the engine when driving. Even when no malfunction has occurred in the brake system, DTC C1441 will be stored when it is judged that a failure has occurred in the brake system due to a reduction in vacuum.
DTCs may be stored if one of the following occurs:
- The brake pedal load sensing switch is malfunctioning (deviation in characteristics).
- The brake pedal is depressed when moving the vehicle with the engine not running and the ignition switch ON.
- Bleeding is performed with the engine running or the ignition switch ON.
- The accelerator and brake pedals depressed simultaneously.*
HINT:
*: The skid control ECU may store this DTC upon judging that a stuck on malfunction has occurred when the accelerator pedal and brake pedal are depressed simultaneously. However, this does not indicate a malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1441 | Performance Decline of Brake Function | When the brake pedal load sensing switch and master cylinder pressure sensor are functioning normally and the brake pedal load sensing switch is judged as on, the pressure signal from the master cylinder pressure sensor does not indicate an increase. |
|