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.
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(b) Inspect the parking brake actuator assembly.
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| NG | .gif) | REPLACE PARKING BRAKE ACTUATOR ASSEMBLY |
|
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| 2. | REPLACE PARKING BRAKE ECU (BRAKE ACTUATOR ASSEMBLY) |
(a) Replace the parking brake ECU (brake actuator assembly).
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| NEXT | | END |
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