DESCRIPTION If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation. This DTC is stored when the +BS terminal voltage deviates due to a malfunction in a power supply or charging system circuit such as the battery or alternator circuit, etc.
WIRING DIAGRAM Refer to DTC C1241. Click here CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Check the battery voltage. Standard Voltage:
(b) Disconnect the A28 skid control ECU (brake actuator assembly) connector. (c) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (d) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Turn the engine switch off. (b) Reconnect the A28 skid control ECU (brake actuator assembly) connector. (c) Clear the DTCs. Chassis > ABS/VSC/TRAC/EPB > Clear DTCs(d) Turn the engine switch off. (e) Start the engine. (f) Perform a road test. (g) Check if the same DTC is output. Chassis > ABS/VSC/TRAC/EPB > Trouble Codes
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Toyota Avalon Service & Repair Manual > Electric Parking Brake System(for Gasoline Model): 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. D ...