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DTC B3527: Power Window Lock-Out Malfunction: Testing

  1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic check. See DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Connect scan tool to data link connector (dlc). dlc is located below left side of instrument panel, near steering column. turn ignition switch to run position. using scan tool, observe window lock-out switch parameter in Driver Door Switch Assembly (DDSA) inputs list. If parameter displays IDLE, go to next step. If parameter does not display IDLE, go to step  4 .
  3. Activate window lock-out switch through all positions. Using scan tool, observe window lock-out switch parameter in DDSA inputs list. If parameter does not change state, go to next step. If parameter changes state, problem may be intermittent. For aid in diagnosing intermittents, see PRELIMINARY INSPECTION  under TROUBLE SHOOTING.
  4. Check for poor, loose or corroded terminals in DDSA harness connector. If problem does not exist, go to next step. If problem exists, repair as necessary. After repair, go to step  6 .
  5. Replace DDSA. See WINDOW SWITCH ASSEMBLY  under REMOVAL & INSTALLATION. After repair, go to next step.
  6. Using scan tool, clear DTCs. Operate vehicle within code enable criteria. See CODE ENABLE CRITERIA  . If DTC does not reset, testing is complete. If DTC resets, go to step  2 .
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