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TROUBLESHOOTING DIESEL FUEL 13A-176 DIAGNOSIS PROCEDURE CAUTION A high-tension voltage is flowing between the STEP 1. Connector check: A-129 No. 4 injector Q: Is the check result normal? YES : Go to Step 2 . NO : Repair or replace the connector. STEP 2. Check No. 4 injector itself. • Check No. 4 injector itself (Refer to ). Q: Is the check result normal? YES : Go to Step 3 . NO : Replace the No. 4 injector. After replacing − Precautions Before Service − What The Common Rail Engine Learns ). STEP 3. Check harness between No. 4 injector Check harness between A-129 (terminal No. 1) No. 4 • Check earthing line for open/short circuit and damage. Q: Are the check results normal? YES : Go to Step 4 . NO : Repair the damaged harness wire. AKA00189 1 2 Connector: A-129 Harness side AB A-129 (GR) AKA00189 1 2 Connector: A-129 Harness side AB A-129 (GR) 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 |