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TROUBLESHOOTING DIESEL FUEL 13A-244 STEP 12. Perform voltage measurement at A-45 • Use special tool test harness (MB991658) to con- nect connector and measure at pick-up harness. • Engine: Idling (after warning up) • Voltage between terminal No. 1 and earth. OK: 2.0 V or higher Q: Is the check result normal? YES : Go to Step 15 . NO : Go to Step 13 . STEP 13. Connector check: C-105 engine-ECU Q: Is the check result normal? YES : Go to Step 14 . NO : Repair or replace the connector. STEP 14. Check harness between A-45 (terminal • Check output line for short circuit. Q: Is the check result normal? YES : Replace the EGR valve assembly. NO : Repair the damaged harness wire. 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 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 |