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Home >> Mitsubishi >> 2001 >> Eclipse RS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Circuit Check >> Scan Tool Will Not Communicate >> No Communication With All Systems
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No Communication With All Systems

  1. Turn ignition off. Measure voltage between ground and OBD-II Data Link Connector (OBD-II DLC) terminal No. 16 (Red/Black wire). See Figure . If battery voltage exists, go to next step. If battery voltage does not exist, repair connectors and/or wiring between OBD-II DLC and power supply.
  2. Check for continuity between ground and OBD-II DLC terminals No. 4 (Black wire) and No. 5 (Black wire). If continuity exists at each terminal, repair or replace scan tool as necessary. If continuity does not exist at one or both terminals, repair appropriate Black wire between ground and OBD-II DLC.
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