SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSINFINITI2006FX35 AWDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSMISSIONDTC P1815: MANUAL MODE SWITCHDIAGNOSTIC PROCEDURE
2006 Infiniti FX35 AWD

Diagnostic Procedure

2006 Infiniti FX35 AWDSECTION Diagnostic Procedure
  1. CHECK CAN COMMUNICATION LINE 

    Perform the self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

    Is a malfunction in the CAN communication indicated in the results?

    YES : Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".

    NO : GO TO 2.

  2. CHECK MANUAL MODE SWITCH CIRCUIT 

    With CONSULT-II 

    1. Turn ignition switch ON. (Do not start engine.)
    2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
    3. Read out ON/OFF switching action of "MANU MODE SW""NON M-MODE SW""UP SW LEVER""DOWN SW LEVER".
      DATA MONITOR REFERENCE CHART

      Item name Condition Display Value
      MANU MODE SW Manual shift gate position (neutral) ON
      Other than the above OFF
      NON M-MODE SW Manual shift gate position OFF
      Other than the above ON
      UP SW LEVER selector lever: side ON
      Other than the above OFF
      DOWN SW LEVER selector lever: -side ON
      Other than the above OFF
      Fig 1: CONSULT-II Diagnosis Function Display - Data Monitor
      G04075539Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the position mutually coincide when the selector lever is shifted to the "+ (up)" or "- (down)" side (1st => 5th gear).

    OK or NG 

    OK : GO TO  4.

    NG : GO TO 3.

  3. DETECT MALFUNCTIONING ITEM 

    Check the following items.

    • Manual mode switch. Refer to "COMPONENT INSPECTION ".
    • Pin terminals for damage or loose connection with harness connector.
    • Open circuit or short to ground or short to power in harness or connector for A/T device (manual mode switch).
    • Unified meter and A/C amp. Refer to "COMBINATION METERS ".

    OK or NG 

    OK : GO TO 4.

    NG : Repair or replace damaged parts.

  4. CHECK DTC 

    Perform "DTC CONFIRMATION PROCEDURE ".

    OK or NG 

    OK : INSPECTION END 

    NG : GO TO 5.

  5. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT 

    Check TCM power supply and ground circuit. Refer to "MAIN POWER SUPPLY AND GROUND CIRCUIT ".

    OK or NG 

    OK : GO TO 6.

    NG : Repair or replace damaged parts.

  6. DETECT MALFUNCTIONING ITEM 

    Check the following.

    • A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

    OK or NG 

    OK : Replace the control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".

    NG : Repair or replace damaged parts.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.