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Retrieving Diagnostic Trouble Codes

NOTE: For specific scan tool operating procedures, see the scan tool manufacturer's instruction manual.
NOTE: If battery voltage is excessively low, Diagnostic Trouble Codes (DTCs) cannot be read. Disconnecting battery will erase all DTCs and diagnostic information stored in Powertrain Control Module (PCM). DO NOT disconnect battery until all DTCs and diagnostic information is read and recorded from scan tool.
  1. Before entering on-board diagnostics, see SERVICE PRECAUTIONS . Turn ignition off. Locate Data Link Connector (DLC) under left side of instrument panel, to right of steering column, and connect scan tool to DLC.
  2. Operate scan tool according to manufacturer's instructions. Read and record scan tool self-diagnostic output (stored codes). See DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS . To perform testing for retrieved codes, see appropriate DTC test under DIAGNOSTIC TESTS .
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