2004 Infiniti I35FACTORY OEM SERVICE PROCEDURE

Diagnostic Procedure

  1. CHECK MIL POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect combination meter harness connector.
    3. Turn ignition switch ON.
    4. Check voltage between combination meter terminal 24 and ground with CONSULT-II or tester.
      Fig 1: Checking Voltage Between Terminal 24 & Ground
      G00787014Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  3 .
    2. NG: GO TO 2.
  2. DETECT MALFUNCTIONING PART 

    Check the following.

    • Fuse block (J/B) connector M19
    • 10A fuse
    • Harness for open or short between fuse block (J/B) and combination meter
    1. : Repair harness or connectors.
  3. CHECK MIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check harness continuity between ECM terminal 33 and combination meter terminal 45. Refer to Wiring Diagram.

      Continuity should exist. 

    4. Also check harness for short to ground and short to power.

    OK or NG 

    1. OK: GO TO  5 .
    2. NG: GO TO 4.
  4. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors M229, F66
    • Harness for open or short between ECM and combination meter
    1. : Repair open circuit or short to ground or short to power in harness or connectors.
  5. CHECK INTERMITTENT INCIDENT 

    Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  .

    OK or NG 

    1. OK: Replace combination meter. Refer to METERS AND GAUGES .
    2. NG: Repair or replace.
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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.