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TROUBLESHOOTING DIESEL FUEL 13A-228 STEP 5. Check harness between A-45 (terminal • Check earthing line for open circuit. Q: Is the check result normal? YES : Go to Step 6 . NO : Repair the damaged harness wire. STEP 6. M.U.T.-III data list • Refer to Data List Reference Table . a. Item 16: EGR valve position sensor Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP 00 − How to Use Troubleshooting/ Inspection Service Points − How to Cope with Intermittent Malfunctions ). NO : Replace the engine-ECU. When the engine- − Precautions Before Service − How to Perform Chassis Number Writing ). After replacing the engine-ECU, − Precautions Before Service − What The Common Rail Engine Learns ). STEP 7. M.U.T.-III data list • Refer to Data List Reference Table . a. Item 16: EGR valve position sensor Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP 00 − How to Use Troubleshooting/ Inspection Service Points − How to Cope with Intermittent Malfunctions ). NO : Replace the EGR valve assembly. Code No. P0420: Catalyst Malfunction <Euro5> FUNCTION • The engine-ECU injects the fuel with the slower timing than usual (post injection), so that the oxy- • The engine-ECU monitors the signals from the No. 2 exhaust gas temperature sensor (catalyst TROUBLE JUDGMENT Check Condition • On DPF regeneration Judgement Criteria • The conditions below continues for 30 seconds. • The fuel injection amount exceeds the specified value. • The engine speed exceeds the specified value. AK501331 1 2 3 4 5 6 AB Harness side A-45 (GR) Connector: A-45 AKA00089 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 43 44 45 46 47 48 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 C-105 (B) C-105 (B) <R.H. drive vehicles> Harness side connector <L.H. drive vehicles> Connector: C-105 AB |