Lexus ES: Brake System Control Module "A" System Internal Failure (C059704,C059746,C060B49,C061049,C13CF1C,C13D41C)
DESCRIPTION
The following DTCs are stored when a malfunction occurs in the skid control ECU (brake actuator assembly).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
|---|---|---|---|---|---|
| C059704 | Brake System Control Module "A" System Internal Failure | Skid control ECU (brake actuator assembly) internal malfunction | Skid control ECU (brake actuator assembly) | DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| C059746 | Brake System Control Module "A" Calibration / Parameter Memory Failure | Skid control ECU (brake actuator assembly) internal malfunction | Skid control ECU (brake actuator assembly) | DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| C060B49 | Left Electric Parking Brake Actuator Control Internal Electronic Failure | Skid control ECU (brake actuator assembly) internal malfunction | Skid control ECU (brake actuator assembly) | DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| C061049 | Right Electric Parking Brake Actuator Control Internal Electronic Failure | Skid control ECU (brake actuator assembly) internal malfunction | Skid control ECU (brake actuator assembly) | DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| C13CF1C | Left Electric Parking Brake Actuator Current Sensor Circuit Voltage Out of Range | Skid control ECU (brake actuator assembly) internal malfunction | Skid control ECU (brake actuator assembly) | DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
| C13D41C | Right Electric Parking Brake Actuator Current Sensor Circuit Voltage Out of Range | Skid control ECU (brake actuator assembly) internal malfunction | Skid control ECU (brake actuator assembly) | DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
CAUTION / NOTICE / HINT
NOTICE:
- The electric parking brake may still operate up to 20 seconds after the engine switch is turned off. Before disconnecting connectors or fuses, turn the engine switch off and wait 20 seconds or more.
-
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
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- When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch assembly as the parking brake indicator light (red) blinks when the engine switch is first turned on (IG).
PROCEDURE
| 1. | REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
(a) Replace the skid control ECU (brake actuator assembly).
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| NEXT |  | END |
READ NEXT:
Electric Parking Brake Switch Signal Compare Failure (C060962)
DESCRIPTION When the electric parking brake switch is pushed, a lock request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly. When the electri
Right Electric Parking Brake Actuator Control (C061000,C061011)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C061000 Right Electric Parking Brake Actuator Control
Diagnosis Condition:
-
Malfunction S
Right Electric Parking Brake Actuator Control Circuit Short to Battery (C061012)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C061012 Right Electric Parking Brake Actuator Control Circuit Short to Battery
Diagnosis Con
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Reassembly
REASSEMBLY PROCEDURE 1. BEARING POSITION Check bearing position and installation direction. Thrust Needle Roller Bearing and Bearing Race Diameter: Mark Front Side Thrust Bearing Race Diameter Inside / Outside mm (in.) Thrust Bearing Diameter Inside / Outside mm (in.) Rear Side Thrust Be
Steering Angle Midpoint Initial Setting Incomplete (C1AEA)
DESCRIPTION When the clearance warning ECU assembly detects that the steering angle neutral point memorization is incomplete during self diagnosis, C1AEA is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1AEA Steering Angle Midpoint Initial Setting Incomplete S
