DTC C1AA7: Skid Control Buzzer Circuit [08/2017 - 08/2019]: Description
The forward recognition camera operates the pre-collision warning by sending a buzzer request signal to the skid control buzzer.
If the forward recognition camera detects a malfunction in the skid control buzzer circuit, it will output DTC C1AA7.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AA7 | Skid Control Buzzer Circuit | When the ignition switch is turned to ON and the pre-collision warning is operating, and one of the following conditions is met (1 trip detection logic*):
|
|
- *: Only output while a malfunction is present.
DTC DETECTION CONDITIONS
| Vehicle Condition | ||||
|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | ||
| Diagnosis Condition | When the ignition switch is turned to ON and the pre-collision warning is operating | ◦ | ◦ | ◦ |
| Malfunction Status | A buzzer request signal is sent to the skid control buzzer but the buzzer does not sound | ◦ | - | - |
| A buzzer request signal is not sent to the skid control buzzer but the buzzer sounds | - | ◦ | - | |
| There is no buzzer sounding request and an open circuit is detected in the skid control buzzer | - | - | ◦ | |
| Detection Time | 1 second or more | 1 second or more | 1 second or more | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.