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NOTE:

If the electric parking brake ECU or electric parking brake actuator is replaced, perform the "RESET MEMORY" and "ACQUIRE TENSION SENSOR ZERO POINT" procedures.
Even after the power switch is turned OFF, the electric parking brake ECU may store a DTC as a result of removing a connector or fuse, as the ECU is still operating. Therefore, during inspection or replacement, turn the power switch OFF and wait for 20 seconds before removing the following: 1) connectors of the electric parking brake ECU, and 2) fuses of the electric parking brake system circuit.

RESET MEMORY (with Techstream)
1. Turn the power switch OFF.
2. Connect the Techstream to the DLC3.
3. Turn the power switch ON (IG) and the Techstream on.
4. Enter the following menus: Chassis / Electric Parking Brake / Utility / Reset Memory.
5. Follow the tester display and perform reset memory.
  HINT:
  
  When the reset memory is completed, the parking brake indicator light (RED) will blink at 0.5 seconds intervals.
  
  Fig 1: Identifying Parking Brake Indicator Light
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
RESET MEMORY (without Techstream)
1. Turn the power switch OFF.
2. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
  - SST: 09843-18040
  NOTE:
  Do not connect the wrong terminals, as this will cause parts to be damaged.
  
  Fig 2: Identifying DLC3 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Turn the power switch ON (IG).
  HINT:
  
  The parking brake indicator light (RED) will blink at 0.25 seconds intervals.
4. Perform both of the following procedures within 8 seconds:
  1. Perform the following with the electric parking brake switch twice: lock condition → off → release condition → off.
  2. Perform the following with the brake pedal: depress → release → depress → release.
    
    Fig 3: Identifying Brake Pedal And Release Switch Pattern
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. With the power switch ON (IG), disconnect the connection of terminals 13 (TC) and 4 (CG) of the DLC3.
6. Check that the parking brake indicator light (RED) blinks at 0.5 seconds intervals.
  NOTE:
  If terminals 13 (TC) and 4 (CG) of the DLC3 are not disconnected, the blinking pattern (0.5 seconds intervals) cannot be checked.
  
  HINT:
  
  If the parking brake indicator light (RED) blinking pattern (0.5 seconds intervals) is confirmed, the clear procedure is completed. If not confirmed, repeat the procedures above.
ACQUIRE TENSION SENSOR ZERO POINT
1. After performing reset memory, perform the release control. Check that the parking brake indicator light (RED) turns off.
PARKING BRAKE BEDDING
WARNING:
Performing parking brake bedding forms the friction surfaces of the parking brake shoe and rear disc, which creates the basic braking force of the parking brake. If bedding is not performed, the parking brake performance may not be normal.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Electric Parking Brake System

Use the Manual With the Right Hardware

When to See a Mechanic

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