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Skid Control Ecu: Removal

NOTE: While the battery is connected, even if the power switch is OFF, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on. Therefore during servicing of the brake system components, do not operate the brake pedal or open/ close the doors while the battery is connected.
  1. REMOVE ENGINE ROOM SIDE COVER LH  (See REMOVAL )
  2. REMOVE V-BANK COVER SUB-ASSEMBLY  (See REMOVAL )
  3. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY  (See REMOVAL )
  4. REMOVE BATTERY SERVICE HOLE COVER LH  (See REMOVAL )
  5. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
    NOTE:
    • When disconnecting the cable, some systems need to be initialized after the cable is reconnected (see INITIALIZATION ).
    • After the power switch is turned OFF, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the power switch OFF, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
  6. REMOVE BATTERY SERVICE HOLE COVER  (See REMOVAL )
  7. REMOVE SERVICE PLUG GRIP  (See REMOVAL )
  8. DISCONNECT NO. 1 MOTOR COOLING PIPE 
    1. Remove the bolt and disconnect the No. 1 motor cooling pipe from the skid control ECU bracket.
      Fig 1: Locating No 1 Motor Cooling Pipe From Skid Control ECU Bracket And Bolt
      G05774156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE SKID CONTROL ECU 
    1. Disconnect the short connector for the brake stroke simulator cylinder from the bracket of the skid control ECU.
    2. Remove the 2 bolts, nut and ECU
      Fig 2: Locating Skid Control ECU Connector With Bolts And Nut
      G05774157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Pull the 2 lock levers upward to release the locks and disconnect the 2 connectors (labeled A).
    4. Disconnect the connector.
  10. DISCONNECT NO. 3 RELAY BLOCK  (See REMOVAL  )
    Fig 3: Pulling Lock Levers Upward To Locks And Connectors (Labeled A)
    G05774158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. DISCONNECT BRAKE FLUID RESERVOIR 
    1. Remove the 2 bolts
    2. Disconnect the brake fluid reservoir.
      Fig 4: Identifying Brake Fluid Reservoir With Bolts
      G05774159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE SKID CONTROL ECU BRACKET 
    1. Remove the 2 nuts, bolt and bracket
    Fig 5: Identifying Skid Control ECU Bracket With Bolt And Nuts
    G05774160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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