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Home >> Lexus >> 2001 >> LX 470 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock/Vehicle Skid Control >> System Testing >> Test M: VSC Sensor Check >> With Hand-Held Tester
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With Hand-Held Tester

  1. Connect hand-held tester to (DLC3). See Figure.
  2. Verify that shift lever is at Park position and steering wheel is at straight ahead position. Start engine and check that VSC TRAC warning light flashes. If VSC TRAC warning light does not flash, inspect VSC TRAC warning light circuit and Ts terminal circuit. See TEST K: TS TERMINAL CIRCUIT  and TEST N: VSC TRAC WARNING LIGHT CIRCUIT  .
  3. Check yaw rate sensor by shifting shift lever to D and drive vehicle at approximately 3 MPH. Turn steering wheel either left or right 90° or more, and maintain 180° circular drive. Do not spin wheels. At end of turn, direction of vehicle should be within 175°-185° of start position.
  4. Stop vehicle. Shift to Park position and verify that VSC buzzer sounds for 3 seconds. If VSC buzzer sounds, sensor check is completed normally. If VSC buzzer does not sound, perform sensor check again.
  5. If VSC buzzer still does not sound there is a malfunction in VSC sensor. Check the DTC. See Fig 1.
  6. Please refer to hand-held tester operator's manual for further details.
Fig 1: Identifying DTCs Of VSC Sensor Check Function
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