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HOMESERVICE MANUALSNISSAN-DATSUN2003FRONTIER BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESBRAKE CONTROL SYSTEMVDC/TCS/ABSTROUBLE DIAGNOSISINSPECTION 17 LAN COMM 1 - LAN COMMUNICATION SYSTEM FAILUREDTC C1169
2003 Nissan-Datsun Frontier Base, Standard

DTC C1169

2003 Nissan-Datsun Frontier Base, StandardSECTION DTC C1169
  1. INSPECTION START 

    Check self-diagnosis results.

    Fig 1: Self-Diagnosis Results (Inspection 17)
    G02104561Courtesy of NISSAN MOTOR CO., U.S.A.

    Do self-diagnosis results indicate anything other than the above?

    1. Yes : Perform repair or replacement for the item indicated.
    2. No : GO TO 2.
  2. CHECK ENGINE SYSTEM 
    1. Perform self-diagnostic procedures for ECM.

    Does "CAN-LAN CONVERTER" appear on display?

    1. Yes : Check LAN circuit. Refer to "INSPECTION 15 ENG CHECK SIG - LAN MONITORING ".
    2. No : GO TO 3.
  3. CHECK ECM POWER SUPPLY 

    Check ECM to battery power circuits, harness and connectors.

    OK or NG?

    1. OK :
      • Repeat self-diagnosis procedures for control unit
      • If NG, replace control unit
    2. NG : Repair or replace.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.