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Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Component Tests >> VSC Sensor Signal >> Without Hand-Held Tester
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Without Hand-Held Tester

  1. Turn the ignition switch OFF and check that the shift lever is at "P" position. Turn the steering wheel to the straight ahead position.
  2. Using special tool (09843-18040), connect terminals Ts and CG of DLC3. See Figure.
  3. Start the engine and check that "VSC TEST" displayed on the mulit-information display. If the "VSC TEST" does not display, check the VSC warning circuit and Ts terminal circuit. See SYSTEM TESTING .
  4. Shift the lever to the "D" position 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 warning 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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