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Input Signal Circuit

Turn ignition off. Disconnect ignition coil, resistor and condenser, and ECM harness connectors. Using ohmmeter, check continuity between ECM terminal No. 3 and resistor and condenser terminal "g" (Yellow/Red wire). Check continuity between ignition coil terminal "b" and resistor and condenser terminal "f" (Green/Yellow wire). Continuity should be present. If continuity is not present, repair or replace wiring harness or connectors.