Lexus ES: Open circuit in Power source circuit (C13A0,C13A5,C13B0)
DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
|---|---|---|---|---|---|
| C13A0 | Open circuit in Power source circuit | Both of following conditions are met:
|
| DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| C13A5 | Electric Current of Motor | Both of following conditions are met:
|
| DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| C13B0 | Electric Parking Brake ECU Malfunction | Both of following conditions are met:
|
| DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | Power switch on (IG) | ○ | - |
| Electric parking brake switch assembly pushed to lock side with power switch off | - | ○ | |
| Malfunction Status | Parking brake ECU (brake actuator assembly)'s power source relay is open | ○ | ○ |
| Detection Time | Approximately 0.5 seconds | Approximately 0.5 seconds | |
| 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.
DTC Detection Conditions: C13A5| Vehicle Condition | |||||
|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | ||
| Diagnosis Condition | Power switch on (IG) | ○ | - | ○ | - |
| Electric parking brake switch assembly pushed to lock side with power switch off | - | ○ | - | ○ | |
| Malfunction Status | Parking brake ECU (brake actuator assembly)'s internal current is abnormal (When parking brake is operating) | ○ | ○ | - | - |
| Parking brake ECU (brake actuator assembly)'s internal current is abnormal (When parking brake is not operating) | - | - | ○ | ○ | |
| Detection Time | Approximately 0.3 seconds | Approximately 0.3 seconds | Approximately 0.5 seconds | Approximately 0.5 seconds | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
DTC Detection Conditions: C13B0| Vehicle Condition | |||||
|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | ||
| Diagnosis Condition | Power switch on (IG) | ○ | - | ○ | - |
| Electric parking brake switch assembly pushed to lock side with power switch off | - | ○ | - | ○ | |
| Malfunction Status | Parking brake ECU (brake actuator assembly)'s internal voltage is abnormal | ○ | ○ | - | - |
| EEPROM is malfunctioning | - | - | ○ | ○ | |
| Detection Time | Approximately 0.5 seconds | Approximately 0.5 seconds | Approximately 0.5 seconds | Approximately 0.5 seconds | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
CAUTION / NOTICE / HINT
NOTICE:
The parking brake indicator light blinks (red) when the power switch is turned on (IG) after replacing the parking brake ECU (brake actuator assembly). Operate the electric parking brake switch assembly to turn off the parking brake indicator light (red).
PROCEDURE
| 1. | INSPECT PARKING BRAKE ACTUATOR ASSEMBLY |
(a) Remove the parking brake actuator assembly.
Click here .gif)
(b) Inspect the parking brake actuator assembly.
Click here
| NG | .gif) | REPLACE PARKING BRAKE ACTUATOR ASSEMBLY |
|
.gif)
| 2. | REPLACE PARKING BRAKE ECU (BRAKE ACTUATOR ASSEMBLY) |
(a) Replace the parking brake ECU (brake actuator assembly).
Click here
| NEXT | | END |
READ NEXT:
Short circuit in Power source circuit (C13A1)
DESCRIPTION C13A1 is stored if the power supply relay in the parking brake ECU assembly has a short circuit. C13A1 is stored if the power switch is off and a voltage of 2.5 V or higher is applied to t
Engine Switch/Power Switch Malfunction (C13A2)
DESCRIPTION When the power switch is turned on (IG), power is supplied to the parking brake ECU (brake actuator assembly). This DTC is stored if IG power source voltage is not supplied to the parking
Open or Short Circuit in Motor (C13A6)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13A6 Open or Short Circuit in Motor Detection conditions (1)
Diagnosis Condition:
Power swi
SEE MORE:
Precaution
PRECAUTION PRECAUTIONS FOR INSPECTING HYBRID CONTROL SYSTEM (a) Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
Inspecting the high-voltage sys
PKSA (Parking Support Alert)
The Parking Support Alert system
consists of the following functions
that operate when driving at a low
speed or backing up, such as when
parking. When the system determines
that the possibility of a collision
with a detected object, such as
a wall, or pedestrian is high, a warning
operates
