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Home >> Infiniti >> 1993 >> G20 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Trouble Code (DTC) Testing (G20) >> DTC 31: ECM
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DTC 31: ECM

Turn ignition on. Erase Diagnostic Test Mode II (Self-Diagnostic Results) memory. Perform Diagnostic Test Mode II (Self-Diagnostic Results). If ECM displays DTC 31 again, replace ECM.

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