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Home >> Mitsubishi >> 2003 >> Lancer Evolution >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Simplified Wiring System (SWS) - Except Evolution) >> Symptom Procedures >> Inspection Procedure A-4: Communication With The Front-Ecu Is Not Possible >> Technical Description (Comment)
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Technical Description (Comment)

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It is suspected that the power supply circuit to the front-ECU is defective, or the wiring harness between the SWS monitor kit and the front-ECU or their connector(s) is damaged. If the battery power supply circuit to the ECU (terminal No. 7 of the front- ECU) is damaged, also check the power supply circuit from the ignition switch (IG2) (terminal No. 30 of the front-ECU), and repair if necessary.

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