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Home >> Mitsubishi >> 2003 >> Lancer ES, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnostic Trouble Code Procedures - Except Evolution >> DTC >> DTC 54: A/T Control Relay System >> DTC Set Conditions
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DTC Set Conditions

If the A/T control relay voltage is less than 7 volts at the PCM (terminals 77 and 89) when the ignition switch is in the "ON" position DTC 54 will be set. The transaxle is locked into the 3rd gear as a fail-safe measure, and the "N" range light flashes once per second.