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Power Seats System Diagnostic System Check

  1. Following manufacturer's instructions, connect GM Tech 2 scan tool to Data Link Connector (DLC). If scan tool powers up, go to next step. If scan tool does not power up, perform appropriate test. See appropriate BODY CONTROL MODULES article.
  2. Turn ignition switch to ON position. Attempt to establish communications with Body Control Module (BCM) and PCM. If communication is established, go to next step. If communication cannot be established, perform appropriate test. See appropriate BODY CONTROL MODULES article.
  3. Select scan tool display DTCs function for the BCM. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, repair power seats by appropriate symptom. See SYMPTOM INDEX  table under SYSTEM TESTS.
  4. If scan tool does not display any DTCs beginning with "U", go to next step. If scan tool displays any DTCs beginning with "U", perform appropriate test. See appropriate BODY CONTROL MODULES article.
  5. If scan tool displays DTC B1000 or B1339, perform appropriate test. See appropriate BODY CONTROL MODULES article. If scan tool does not display DTC B1000 or B1339, go to next step.
  6. If scan tool displays DTC B0506, perform appropriate test. See appropriate BODY CONTROL MODULES article. If scan tool does not display DTC B0506, repair power seats by appropriate symptom. See SYMPTOM INDEX  table under SYSTEM TESTS.
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