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Home >> Mitsubishi >> 2002 >> Diamante LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Circuit Check >> Scan Tool Will Not Communicate >> No Communication With All Systems

No Communication With All Systems

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