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Driver Information System Diagnostic System Check: Testing

  1. Install scan tool to DLC. If scan tool powers up, go to next step. If scan tool does not power up, see SELF-DIAGNOSTICS in appropriate BODY CONTROL MODULES article.
  2. Turn ignition switch to ON position. Attempt to establish communications with Driver Information Center (DIC). If communication is established, go to next step. If communication cannot be established, go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DATA LINE  under DIAGNOSTIC TESTS
  3. Select driver information center display DTCs function on scan tool. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, perform appropriate procedure under SYMPTOM 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", go to SELF-DIAGNOSTICS in appropriate BODY CONTROL MODULES article.
  5. If scan tool does not display DTC B1000, perform appropriate procedure under SYMPTOM TESTS . If scan tool displays DTC B1000, see SELF-DIAGNOSTICS in appropriate BODY CONTROL MODULES article.
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