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E N G IN E S 8140. 43R /B /S /N 142 D AI LY B as e - M ay 2004 P rin t 603. 93. BLINK CODE EDC WARNING LIGHT POSSIBLE CAUSE POSSIBLE FAILURES RECOMMENDED TESTS OR OPERATIONS REMARKS 4.4 Blinking Booster pressure too high, 4.5 Possible consumption in- crease due to exhaust back Early turbine wear Power reduction Smoke when accelerating VGT test Read parameters on Modus IWT- Check VGT mechanism movement Check VGT actuator Check wiring Check VGT pneumatic control circuit Mechanism locked partially/completely closed or open Or VGT solenoid valve short to positive or to 4.5 VGT only On VGT actuator short to 4.4 and power reduction Smoke when accelerating VGT test Check wiring, connections and compo- If wiring to pin 8a short to positive or open, - fan control - VGT control - 3 rd pumping element cut-out - pressure regulator - EGR - conditioner compressor - fuel motor pump 5.1 Blinking Corresponding cylinder in- 3.1- 3.2 -3.3 -3.4 The engine runs on 2 cylin- Engine test Wiring - connections — electrical part The engine turns only with pairs of cylinders After turning off and back on again the en- 5.1 or 5.2 or 5.3 or 5.4 Blinking Injector electrical part short 3.1 - 3.2 - 3.3 - 3.4 Engine running with 3 cylin- Engine test. Check wiring, connections and compo- |