Lexus NX: EPB High Temperature (C13AA)

DESCRIPTION

If the electric parking brake is used continuously, the parking brake actuator assembly overheat prevention stops the system.

This DTC is stored to protect the system and is not a malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

C13AA

EPB High Temperature

Both of following conditions are met:

  • Electric parking brake is operating
  • Lock and release operations are performed without 2 second interval 10 times; or lock and release operations are performed without 2 second interval 5 times, and target current is not achieved during lock control

Overheat due to continuous use of system

Yes

A message is displayed on the multi-information display indicating electric parking brake system operation is stopped due to high temperatures.

PROCEDURE

1.

ELECTRIC PARKING BRAKE OVERHEAT

(a) With the overheat warning displayed, wait for approximately 1 minute.

(b) Check if the overheat warning has disappeared.

HINT:

  • Check the display after turning the power switch off and on (IG).
  • If the display returns to normal and the electric parking brake can be operated, clear the DTC.
Chassis > Electric Parking Brake > Clear DTCs
NEXT

END

READ NEXT:

 Open in +B Circuit (C13AD)

DESCRIPTION The parking brake ECU assembly is supplied with power to operate the motor via the +B and +B2 terminals. DTC No. Detection Item DTC Detection Condition Trouble Area Memory Not

 System Information not Received (C13AE)

DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C13AE System Information not Received Both of following conditions are met: Power switch is

 Control Module Communication Bus OFF (U0073,U0124,U0129,U0293)

DESCRIPTION The parking brake ECU assembly communicates with the hybrid vehicle control ECU, skid control ECU (brake booster with master cylinder assembly) and deceleration sensor (airbag ECU assembly

SEE MORE:

 Operation Check

OPERATION CHECK CHECK BASIC FUNCTIONS (a) When the back door is partially closed, check that the motor operates to fully close (lock) the back door. (b) Check that the back door can be opened. (c) When the back door is partially closed and then the motor starts normal operation, push the back door o

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC AND FREEZE FRAME DATA (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG) and the Techstream on. (d) Enter the following menus: Chassis / Electric Parking Brake / Trouble Codes. (e) Check for DTC. Chassis > Electric

© 2016-2025 Copyright www.lexunx.com