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EC-1142 < COMPONENT DIAGNOSIS > [K9K] P0201, P0202, P0203, P0204 FUEL INJECTOR P0201, P0202, P0203, P0204 FUEL INJECTOR DTC Logic INFOID:0000000001162599 DTC DETECTION LOGIC NOTE: The DTC is declared present after the engine has been started. • If the DTC is present: Diagnosis Procedure INFOID:0000000001162600 1. CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Disconnect fuel injector harness connector. 4. Check the continuity between fuel injector harness connector and ECM harness connector. 5. Also check harness for short to ground and short to power. Is the inspection result normal? YES >> GO TO 2. NO >> Repair open circuit or short to ground or short to power in harness or connectors. 2. CHECK FUEL INJECTOR OUTPUT CIRCUIT FOR OPEN AND SHORT 1. Check the continuity between fuel injector harness connector and ECM harness connector. DTC No. Trouble diagnosis name Possible cause P0201 NO. 1 CYLINDER FUEL INJECTOR CIRCUIT • Harness or connectors (The fuel injector circuit is open or • Fuel injector P0202 NO. 2 CYLINDER FUEL INJECTOR CIRCUIT P0203 NO. 3 CYLINDER FUEL INJECTOR CIRCUIT P0204 NO. 4 CYLINDER FUEL INJECTOR CIRCUIT Fuel injector ECM Continuity Cylinder Connector Terminal Connector Terminal 1 F17 1 F10 8 Existed 2 F18 1 F10 7 3 F19 1 F10 6 4 F20 1 F10 5 |