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Home >> Toyota >> 1990 >> Corolla LE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Ignition System Diagnostic Code Tests >> Code 12 (No Rpm Signal)
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Code 12 (No Rpm Signal)

ECU will store trouble code No. 12 in memory if it does not receive signal from either "NE" pick-up coil (RPM) or "G" pick-up coil (crank position) within 2 seconds of engine cranking.