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Home >> Mazda >> 1993 >> MPV LX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Ignition Checks (NAVAJO) >> Check For Ground Open To ICM

Check For Ground Open To ICM

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Turn key off and disconnect PCM. Measure resistance between breakout box pins J27 (PWR GND E) and chassis ground. If resistance is less than 5 ohms, go to CHECK VRS RESISTANCE. If resistance is 5 ohms or more, repair open in ground circuit.