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6 CHECK ECM OUTPUT SIGNAL CIRCUIT 1. Turn ignition switch “OFF”. Refer to Wiring Diagram. 5. Also check harness for short to ground or short to power. OK or NG OK E INSPECTION END NG E GO TO 7. 7 DETECT MALFUNCTIONING PART Check the following. I Harness for open or short between ECM and combination meter E Repair open circuit or short to ground or short to power in harness or connectors. 8 CHECK COMBINATION METER POWER SUPPLY CIRCUIT 1. Turn ignition switch “OFF”. YEC701A Voltage: Battery voltage OK or NG OK E GO TO 10. NG E GO TO 9. ENGINE OIL PRESSURE SWITCH ZD30DDTi Diagnostic Procedure (Cont’d) EC-302 |