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Home › Buick › 2003 › Century Custom › Repair and Diagnosis › Engine Performance › System › Engine Controls Self-Diagnostics - 3.1L Engine › Drive Cycles › Service Bay Test › Test Procedure

Test Procedure

  1. Connect scan tool.
  2. Using a scan tool, select SERVICE BAY TEST in the SPECIAL FUNCTIONS menu.
  3. Follow the instructions on the scan tool.
  4. Check DTCs using a scan tool.
  5. Continue with the published service manual diagnostic DTC procedure.
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