LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 1997 >> Diamante ES >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Multiplex Control System >> Diagnostic Tests >> Code 12
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Code 12

  1. Check connectors to instrument panel harness and dash harness. Repair as necessary. If connectors are okay, disconnect instrument panel ECU harness connector.
  2. Check continuity between ground and instrument panel ECU harness-side connector terminal No. 37 (Black wire). If continuity is present, replace instrument panel ECU. If continuity is not present, check circuit between instrument panel ECU and ground. Repair as necessary.
scientia non olet · About LEMON Manuals