LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 2003 >> Montero XLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Testing Procedure >> Scan Tool Will Not Communicate >> No Communication With All Systems
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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 (White wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair or replace connectors and/or wiring between OBD-II DLC and fusible link No. 2 (60-amp) in engine compartment relay box.
  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 either terminal, repair wiring between ground and OBD-II DLC.
scientia non olet · About LEMON Manuals