Lexus ES: EPB High Temperature (C13AA)
DESCRIPTION
If the electric parking brake is used continuously, system operation is stopped to prevent the parking brake actuator assembly from overheating.
This DTC is stored when system operation is stopped to prevent the parking brake actuator assembly from overheating and is not a malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
|---|---|---|---|---|---|
| C13AA | EPB High Temperature | Both of following conditions are met:
| Overheat due to continuous use of system | DTC stored | A warning is displayed on the multi-information display indicating electric parking brake system operation is stopped due to high temperatures. |
| Vehicle Condition | |||
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | Electric parking brake is operating | ○ | ○ |
| Malfunction Status | Lock and release operations are performed without 2 seconds interval 10 times | ○ | - |
| Lock and release operations are performed without 2 seconds interval 5 times, and target current is not achieved during lock control | - | ○ | |
| Detection Time | - | - | |
| 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.
PROCEDURE
| 1. | ELECTRIC PARKING BRAKE OVERHEAT |
(a) With the overheat warning displayed on the multi-information display, wait for approximately 1 minute.
(b) Check that the overheat warning has disappeared.
HINT:
- Check the display after turning the power switch off and on (IG).
- After the warning has disappeared and the electric parking brake system returns to normal, clear the DTCs.
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