Lexus ES: EPB System Malfunction (C13AF)
Lexus ES (XZ10) Service Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System (for Hv Model) / EPB System Malfunction (C13AF)
DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) is connected to the parking brake ECU (brake actuator assembly) via CAN communication. If an electric parking brake system malfunction occurs, this DTC is output.
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|---|
| C13AF | EPB System Malfunction | 420 | Electric parking brake system malfunction signal continues for 1 second. | Parking brake ECU (brake actuator assembly) | Does not come on | Brake hold DTC HINT: EPB: Electric Parking Brake System |
PROCEDURE
| 1. | CHECK DTC (ELECTRIC PARKING BRAKE SYSTEM) |
(a) Check for electric parking brake system DTCs and record any codes that are output.
Chassis > Electric Parking Brake > Trouble Codes| NEXT | .gif) | INSPECT ELECTRIC PARKING BRAKE SYSTEM |
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
Before replacing the hybrid vehicle control ECU, refer to Registration.
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Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA HINT: The battery ECU assembly records vehicle and driving condition information as freeze frame data the moment a DTC is stored. It can be used for estimating or duplicating the vehicle conditions that were present when the malfunction occurred. To confirm the de
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