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Home >> Oldsmobile >> 1992 >> Toronado Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnosis & Testing >> Using Tech 1 >> Solenoid Valve Pressure Hold Test
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Solenoid Valve Pressure Hold Test

  1. Raise vehicle on frame contact hoist so that wheels to be tested are off ground.
  2. Select SOLENOID TEST. Select wheel circuit solenoid to be tested. If testing rear axle valve, ensure vehicle is in Neutral.
  3. With foot off brake pedal, have assistant verify that wheel can be turned by hand. Press UP arrow, then apply and hold brake pedal. Verify that assistant can turn selected wheel by hand.
  4. When UP arrow is pressed, display will change from OFF to ON. After 15 seconds, display will change back to OFF, verify that selected wheel is now locked. Repeat test if necessary to verify proper operation. Perform SOLENOID VALVE PRESSURE RELEASE TEST.
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