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Instruments - Speedometer Inoperative

SOURCE: Mitsubishi Tech Talk Article December 2004

TITLE: Speedometer Inoperative

APPLIES TO: 2004 Diamante

SERVICE TIP:

If the speedometer does not operate and normal diagnosis finds no problem in the speedometer unit or its circuit, replace the A/C control unit with a known good unit, then recheck the speedometer operation. A bad speed sensing circuit inside the A/C control unit could cause the electronic speedometer to fail.