DTC C13B4: EPB Switch Malfunction [04/2020 - 09/2022]: Description
WARNING: This page is about a different variant/trim than selected.
When the electric parking brake switch is pulled, a lock request signal is sent from the parking brake ECU (brake actuator assembly) to the parking brake actuator assembly. When the electric parking brake switch is pushed, a release request signal is sent from the parking brake ECU (brake actuator assembly) to the parking brake actuator assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
|---|---|---|---|---|---|
| C13B4 | EPB Switch Malfunction |
|
|
DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
DTC DETECTION CONDITIONS: C13B4
| Vehicle Condition | |||||||
|---|---|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | Pattern 6 | ||
| Diagnosis Condition | Vehicle is stopped | - | - | ◦ | - | - | - |
| Vehicle is being driven | - | - | - | ◦ | - | - | |
| During initial check | - | - | - | - | ◦ | - | |
| Parking brake switch is being operated | - | - | - | - | - | ◦ | |
| Malfunction Status | Open detected in parking brake switch circuit | ◦ | - | - | - | - | - |
| Short detected in parking brake switch circuit | - | ◦ | - | - | - | - | |
| Stuck parking brake switch detected | - | - | ◦ | ◦ | ◦ | ◦ | |
| Detection Time | 1 second or more | 1 second or more | 30 seconds or more | 1 second or more | 1 second or more | - | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | 3 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.