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EC-884 < COMPONENT DIAGNOSIS > [VK56DE] IGNITION SIGNAL • Harness connectors E2, F32 • Harness for open or short between ignition coil and harness connector F32 >> Repair or replace harness or connectors. 12. CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Check harness continuity between ignition coil terminal 2 and ground. Refer to Wiring Diagram. 3. Also check harness for short to power. OK >> GO TO 13. NG >> Repair open circuit or short to power in harness or connectors. 13. CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. 2. Check harness continuity between ECM terminals 46, 60, 61, 62, 65, 79, 80, 81 and ignition coil terminal 1. Refer to Wiring Diagram. 3. Also check harness for short to ground and short to power. OK >> GO TO 14. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 14. CHECK IGNITION COIL WITH POWER TRANSISTOR EC-884, "Component Inspection" OK or NG OK >> GO TO 15. NG >> Replace malfunctioning ignition coil with power transistor. 15. CHECK INTERMITTENT INCIDENT GI-37, "Intermittent Incident" >> INSPECTION END Component Inspection INFOID:0000000005257905 IGNITION COIL WITH POWER TRANSISTOR CAUTION: Perform the following procedure in a place with no combustible objects and good ventilation. 1. Turn ignition switch OFF. 2. Disconnect ignition coil harness connector. 3. Check resistance between ignition coil terminals as per the fol- lowing. 4. If NG, replace ignition coil with power transistor. If OK, go to next step. Continuity should exist. Continuity should exist. Terminal No. (Polarity) Resistance [at 25 ° C (77 ° F)] 1 and 2 Except 0 or ∞
Ω 1 and 3 Except 0 Ω 2 and 3 PBIB0847E 2010 Pathfinder |