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Home >> Toyota >> 1998 >> Tercel Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Component Tests >> Actuator Check

Actuator Check

  1. Ensure battery voltage exists. Turn ignition off. Disconnect actuator and relay electrical connectors. See Figure. Connect Test Harness (09990-00200 and 09990-00300 on 1997 models, or 09990-00440 on 1998 models) and Actuator Checker (09990-00150) to vehicle. Connect actuator checker positive and negative power cables to vehicle battery.
  2. Place Sheet "A" (09990-00163) on actuator checker. Start engine and let idle. Turn actuator checker SELECTOR switch to FRONT RH position. Press and hold MOTOR switch for a few seconds. Ensure motor operates. Press and hold brake pedal for about 15 seconds. Ensure brake pedal does not go down. With brake pedal still applied, press MOTOR switch and ensure brake pedal does not pulsate.
    NOTE: DO NOT press POWER switch for more than 10 seconds.
  3. Press brake pedal and hold. Press and hold POWER switch for a few seconds. When POWER switch is pressed, brake pedal should not go down. Release POWER switch. Brake pedal should lower. Press and hold MOTOR switch for a few seconds. Brake pedal should return. Release MOTOR switch. Release brake pedal.
  4. Repeat steps 2) through 4) for FRONT LH, REAR RH and REAR LH by turning SELECTOR switch on actuator checker. When checking REAR LH position, press REAR LH switch, instead of POWER switch.
  5. After checking remaining wheels, press and hold MOTOR switch for a few seconds. Stop engine. Remove actuator checker and test harnesses. Reconnect vehicle harnesses to actuator and relay. Clear DTCs. See CLEARING DTCS under SELF-DIAGNOSTICS .
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