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Actuator Check (With TRAC System)

NOTE: Actuator Checker (SST 09990-00150) and Sheet "A" (SST 09990-00163) are needed to perform actuator check.
  1. Turn ignition off. Ensure battery voltage is 10-14 volts. Remove air cleaner assembly. Disconnect actuator electrical connectors. Connect Actuator Checker (SST 09990-00150) to actuator. Connect actuator checker positive and negative power cables to vehicle battery.
  2. Place Sheet "A" (SST 09990-00163) on actuator checker. Install air cleaner assembly. Start engine and operate at idle. Turn SELECTOR SWITCH knob of actuator checker to FRONT RH position. See Fig 1 and Fig 2 . Press MOTOR SWITCH button for a few seconds. Press brake pedal and hold it in position until step 3) is completed.
    NOTE: DO NOT  keep POWER SWITCH button pressed for more than 10 seconds.
  3. Press POWER SWITCH button, and ensure brake pedal does not go down. Release POWER button. Brake pedal should go down. Press MOTOR SWITCH button for a few seconds, and ensure brake pedal returns. Release brake pedal.
  4. Press MOTOR button for a few seconds then release it. Depress brake pedal and hold it down for 15 seconds. With brake pedal depressed, press MOTOR button for a few seconds. Ensure brake pedal does not pulsate. If actuator does not test as specified, replace actuator. See ABS ACTUATOR under REMOVAL & INSTALLATION .
    NOTE: When inspecting REAR LH position, push REAR LH POWER SWITCH button instead of POWER SWITCH button.
  5. Repeat steps 2) through 4) for FRONT LH, REAR RH and REAR LH positions of SELECTOR SWITCH knob. See Fig 1 and Fig 2 . After all wheels are checked, press MOTOR button for a few seconds.
  6. Remove air cleaner. Remove Sheet "A" (SST 09990-00163), and disconnect actuator checker. Reconnect actuator harness connectors. Install air cleaner assembly. Clear diagnostic trouble codes. See CLEARING CODES .
Fig 1: Identifying Actuator Checker Switches With TRAC System
G91A03777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying Actuator Checker Switches Without TRAC System
G91J03786Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002