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EC-788 < COMPONENT DIAGNOSIS > [VK56DE] P0850 PNP SWITCH 1. Turn ignition switch ON. 2. Check voltage between ECM terminal 102 (PNP signal) and ground under the following conditions. 3. If NG, go to Diagnosis Procedure INFOID:0000000005257775 1. CHECK DTC WITH TCM Refer to TM-34, "OBD-II Diagnostic Trouble Code (DTC)" OK or NG OK >> GO TO 2. NG >> Repair or replace malfunctioning part. 2. CHECK STARTING SYSTEM Turn ignition switch OFF, then turn it to START. Does starter motor operate? Yes or No Yes >> GO TO 3. No >> Refer to 3. CHECK PNP SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Disconnect combination meter harness connector. 4. Check harness continuity between ECM terminal 102 and combination meter terminal 7. Refer to Wiring Diagram. 5. Also check harness for short to ground and short to power. OK >> GO TO 5. NG >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. • Harness connectors M31, E152 • Harness for open or short between ECM and combination meter >> Repair open circuit or short to ground or short to power in harness or connectors. 5. CHECK INTERMITTENT INCIDENT GI-37, "Intermittent Incident" OK or NG OK >> GO TO 6. NG >> Repair or replace malfunctioning part. 6. REPLACE COMBINATION METER FUNCTION MWI-96, "Removal and Installation" Selector lever position Voltage (Known good data) P or N position Approx. 0 V Except the above position BATTERY VOLTAGE (11 - 14 V) MBIB0043E Continuity should exist. 2010 Pathfinder |