FixVault
Home › Lexus › 1995 › SC 400 › Repair and Diagnosis › Brakes › Traction Control › Anti-Lock Brake System › Self-Diagnostic System › Actuator Check (Without TRAC System)

Actuator Check (Without TRAC System)

NOTE: Actuator Checker (SST 09990-00150) is 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. Install air cleaner assembly. Start engine and operate at idle. Turn selector switch of actuator checker to FRONT RH position. See Figure and Figure . Press SUB MOTOR switch for a few seconds. Depress brake pedal and hold it in position until step 3) is completed.
    NOTE: DO NOT  keep MAIN switch pressed for more than 10 seconds.
  3. Press MAIN switch, and ensure brake pedal does not go down. Release MAIN switch. Brake pedal should go down. Press SUB MOTOR switch for a few seconds, and ensure brake pedal returns. Release brake pedal.
  4. Press SUB MOTOR switch for a few seconds then release it. Depress brake pedal and hold it down for 15 seconds. With brake pedal depressed, press SUB MOTOR switch for a few seconds. Ensure brake pedal does not pulsate. Replace actuator if it does not test as specified. See ABS ACTUATOR under REMOVAL & INSTALLATION .
  5. Repeat steps 2) through 4) for FRONT LH and REAR positions of selector switch. See Figure and Figure . After all wheels are checked, press SUB MOTOR switch for a few seconds.
  6. Remove air cleaner. Remove actuator checker. Reconnect actuator harness connectors. Install air cleaner assembly. Clear diagnostic trouble codes. See CLEARING CODES .
About FixVault