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Home >> Chevrolet >> 2001 >> Prizm Base, Automatic, A245E/MS7 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Interlock Systems >> Symptom Tests >> Test A: Shift Lever Does Not Move With Brake Pedal Depressed

Test A: Shift Lever Does Not Move With Brake Pedal Depressed

NOTE: For circuit reference, see CONNECTOR IDENTIFICATION  and WIRING DIAGRAMS  .
  1. Did you review the DESCRIPTION and OPERATION and perform the necessary inspections? If so, go to next step. If not, see DESCRIPTION & OPERATION  .
  2. Turn ignition switch to the ON position. Depress the brake pedal. Attempt to move the gearshift lever out of the Park position. Does the gearshift lever move out of the Park position? If so, check for intermittent condition. See SYMPTOM DIAGNOSIS  under TROUBLE SHOOTING. If not, go to next step.
  3. Connect a scan tool to the DLC located under the left side of the instrument panel. Monitor the brake switch parameter in the engine data list. Does the brake switch indicate APPLIED when the brake pedal is depressed? If so, go to step  6 . If not, go to next step.
  4. Test the brake switch signal circuit (Green/White wire) for an open. Did you find and correct the condition? If so, go to step  13 . If not, go to next step.
  5. Test the brake switch voltage supply circuit (Red/White wire) for an open. Did you find and correct the condition? If so, go to step  13 . If not, go to step  9 .
  6. Test the shift lock solenoid control module voltage supply circuits for an open. Did you find and correct the condition? If so, go to step  13 . If not, go to next step.
  7. Test the shift lock solenoid control module ground circuit (White/Black wire) for an open. Did you find and correct the condition? If so, go to step  13 . If not, go to next step.
  8. Test the brake switch signal circuit (Green/White wire) for an open. Did you find and correct the condition? If so, go to step  13 . If not, go to step  10 .
  9. Inspect the stoplamp switch for a poor connection or high resistance. Did you find and correct the condition? If so, go to step  13 . If not, go to step  11 .
  10. Inspect the shift lock solenoid control module for a poor connection or high resistance. Did you find and correct the condition? If so, go to step  13 . If not, go to step  12 .
  11. Adjust or replace the stoplamp switch. See STOPLAMP SWITCH under ADJUSTMENTS  or REMOVAL & INSTALLATION  . After repairs, go to step  13 .
  12. Replace the shift lock solenoid control module. See SHIFT LOCK SOLENOID CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to next step.
  13. Operate the system in order to verify the repair. Did you find and correct the condition? If so, system is okay. If not, go to step  3 .
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