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Home >> Lexus >> 2002 >> LX 470 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock/Vehicle Skid Control >> System Testing >> Test I: Speed Sensor Signal Check >> With Hand-Held Tester
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With Hand-Held Tester

  1. Connect LEXUS hand-held tester to (DLC3). See Figure.
  2. Start engine and check that ABS warning light flashes. If ABS warning light does not flash, inspect ABS warning light circuit and Ts circuit. See TEST D: ABS WARNING LIGHT CIRCUIT  and TEST K: TS TERMINAL CIRCUIT  .
  3. Keep vehicle in a stationary condition on a flat surface for at least 6 seconds.
  4. Shift transfer lever to L position and turn center differential lock switch on. Shift transfer lever back to H.
  5. Leaving vehicle in stationary condition and brake pedal in free condition for one second, continue to depress brake pedal with 22 lb. (10 kg) of force or more for one second or more.
  6. Leaving vehicle in stationary condition, depress brake pedal quickly with at least 221 lb. (100 kg) of force. At this time the ABS warning light comes on for 3 seconds.
  7. Drive vehicle straight forward at speeds of 28 MPH or more for several seconds. Verify that ABS warning light turns off.
  8. Stop vehicle. Read DTC by following prompts on the tester screen. If any DTCs are retrieved, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . Refer to the hand-held tester operator's manual for further details.
  9. Stop engine. Disconnect hand-held tester.
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