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Home >> Mitsubishi >> 1997 >> Galant LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Tests >> Scan Tool Will Not Communicate >> No Communication With All Systems

No Communication With All Systems

  1. Check voltage between ground and DLC terminal No. 16. If battery voltage does not exist, check connectors and wiring harness between DLC and power supply. If battery voltage exists, go to next step.
  2. Check continuity between ground and DLC terminal No. 4, and between ground and terminal No. 5. If continuity exists, replace scan tool. If continuity does not exist, check wiring harness between ground and DLC.
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