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P0850 PNP SWITCH EC-291 < COMPONENT DIAGNOSIS > [QR25DE] C D E F G H I J K L M A EC N P O 3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. 2. Check harness continuity between ECM terminal 102 and PNP switch terminal 1. 3. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 5. NG >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit, short to ground or short to power in harness or connectors. 5. CHECK PNP SWITCH OK or NG OK >> GO TO 6. NG >> Replace PNP switch. 6. CHECK INTERMITTENT INCIDENT GI-46, "Intermittent Incident" . >> INSPECTION END Continuity should exist. |