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Home › Chevrolet › 2000 › Venture Plus › Repair and Diagnosis › Transmission › Automatic Trans › Shift Interlock System › Symptom Tests › BTSI Control Always On With Ignition On › "U" Series

"U" Series

  1. Place gearshift lever in Park. Disconnect BTSI solenoid harness connector. Turn ignition on. If gearshift lever can be moved from Park, go to step  9 . If gearshift lever cannot be moved from Park, go to next step.
  2. Disconnect BTSI control rod. If gearshift lever can be moved from Park, go to next step. If gearshift lever cannot be moved from Park, go to step  4 .
  3. Adjust or replace BTSI solenoid.
  4. Disconnect shift cable at steering column. If gearshift lever can be moved from Park, go to next step. If gearshift lever cannot be moved from Park, go to step  7 .
  5. Reconnect shift cable at steering column. Disconnect shift cable at transaxle. If gearshift lever can be moved from Park, go to next step. If gearshift lever cannot be moved from Park, go to step  8 .
  6. Repair transaxle internal linkage.
  7. Repair linear shift assembly in steering column.
  8. Replace shift cable.
  9. Using test light connected to ground, probe BTSI solenoid ignition feed circuit (Dark Green/White wire) at BTSI solenoid harness connector. Depress brake pedal. If test light remains illuminated, leave test light connected and go to next step. If test light is not illuminated, go to step  3 .
  10. Disconnect brakelight switch harness connector. If test light remains illuminated, go to next step. If test light is not illuminated, go to step  12 .
  11. Repair short to battery voltage in ignition feed circuit (Dark Green/White wire) between BTSI solenoid and brakelight switch.
  12. Adjust or replace brakelight switch.
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