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Home >> Mazda >> 1993 >> RX-7 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Ignition Checks (NAVAJO) >> Checking ICM Control
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Checking ICM Control

If voltage was less than described in CHECK C1, C2 & C3 AT COIL PACK (RUNNING) or CHECK C1, C2 & C3 AT COIL PACK (CRANKING), replace coil pack. If voltage was greater than described, check circuits between coil pack and ICM module for opens or shorts. If circuits okay, replace ICM. Remove all test equipment, and reconnect all components. Clear Continuous Memory, and check for fault codes.