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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Component Tests >> VSC Sensor Signal >> With Hand-Held Tester
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With Hand-Held Tester

  1. Hook up the hand-held tester to the DLC3. See Figure.
  2. Check that the shift lever is at "P" position. Turn the steering wheel to the straight ahead position.
  3. Start the engine and check that the "VSC TEST" is displayed on the multi-information display. If the "VSC TEST" does not display, check the VSC warning indicator circuit and Ts terminal circuit. See SYSTEM TESTING .
  4. Shift the lever to the "D" range and drive the vehicle at approximately 3 mph (5 km/h). Turn the steering wheel either to left or right 90 degrees or more and continue until completing a 180 degree or more turn. Do not spin the wheels. Stop the vehicle and shift the lever to "P" position. Ensure the VSC buzzer sounds for 3 seconds.
  5. If the VSC buzzer sounds, the sensor check is normal. If the buzzer does not sound, check the VSC buzzer circuit. Then do the sensor check again. See SYSTEM TESTING .
  6. If the buzzer still won't sound, there is a malfunction in the VSC sensor. Check the DTC. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  under SELF-DIAGNOSTIC SYSTEM.
  7. Using special tool (09843-18040) connect terminals Tc and CG of DLC3. See Figure.
  8. Read the number of displays on the multi-information display.
  9. Disconnect the special tool and turn ignition switch OFF.
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