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Conformation Method

WARNING: This page is about a different variant/trim than selected.
  1. SET IN SELF-DIAGNOSIS MODE
    1. Turn ignition switch ON.
    2. Set in self-diagnosis mode as per the following. Press OFF switch for at least 5 seconds Within 10 seconds after starting engine (ignition switch is turned ON).
    NOTE:
    • If battery voltage drops below 12 V during diagnosis STEP-3, door motor speed becomes slower and as a result, the system may generate an error even when operation is normal. Start engine before performing this diagnosis to avoid this.
    • Former STEP-1 (indicators and display screen are checked) does not exist in this self-diagnosis function.
    • OFF switch may not be recognized according to the timing of pressing it. Operate OFF switch after the intake switch indicators are turned ON.

    GO TO 2.

  2. STEP-2: SENSOR AND DOOR MOTOR CIRCUITS ARE CHECKED FOR OPEN OR SHORT CIRCUIT

    Does code No. 20 appear on the display? 

    YES: GO TO 3.

    NO: GO TO  11.

    Fig 1: Display - Code No. 20
    G04887554Courtesy of NISSAN NORTH AMERICA, INC.
  3. STEP-3: MODE DOOR AND INTAKE DOOR POSITIONS ARE CHECKED

    Turn temperature control dial (driver side) clockwise.

    Does code No. 30 appear on the display? 

    YES: GO TO 4.

    NO: GO TO  12.

    Fig 2: Display - Code No. 30
    G04887555Courtesy of NISSAN NORTH AMERICA, INC.
  4. STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED
    1. Turn temperature control dial (driver side) clockwise.
    2. Press DEF ( ) switch. Code No. of each door motor test is indicated on the display.

    GO TO 5.

    Fig 3: Display - Code No. Of Door Motor Test
    G04887556Courtesy of NISSAN NORTH AMERICA, INC.
  5. CHECK MOTORS

    Refer to the following chart and check discharge air flow, air temperature, blower motor duty ratio and compressor operation.

    Code No. 41 42 43 44 45 46
    Mode door position VENT B/L 1 B/L 2 FOOT(1) D/F DEF
    Intake door position REC REC 20% FRE FRE FRE FRE
    Air mix door position FULL COLD FULL COLD FULL HOT FULL HOT FULL HOT FULL HOT
    Blower motor duty ratio 37% 91% 65% 65% 65% 91%
    Compressor (Magnet clutch) ON ON OFF OFF ON ON
    Electronic control valve (ECV) duty ratio 100% 100% 0% 0% 50% 100%
    (1) Mode door position is in a condition of FOOT mode setting trimmer (automatic control).

    Checks must be made visually, by listening the sound, or by touching air outlets with hand, etc. for improper operation.

    DISCHARGE AIR FLOW - WITHOUT REAR VENTILATION

    Discharge air flow
    Mode position indication Condition Air outlet/distribution
    VENT FOOT DEF
    Front Rear
    DUAL switch: OFF(1) 100% - - -
    53% 29% 18% -
    11% 39% 24% 26%
    9% 33% 21% 37%
    16% - - 84%
    (1) With left and right ventilation temperature separately control system.
    DISCHARGE AIR FLOW - WITH REAR VENTILATION

    Discharge air flow
    Mode position indication Condition Air outlet/distribution
    VENT FOOT DEF
    Front Rear Front Rear
    DUAL switch: OFF(1)
    Rear ventilator: OPEN    		 88% 12% - - -
    49% 10% 25% 16% -
    10% 12% 33% 22% 23%
    9% 11% 29% 18% 33%
    15% - - - 85%
    (1) With left and right ventilation temperature separately control system.

    Is this inspection result normal? 

    YES: GO TO 6.

    NO-1: Air outlet does not change. Refer to "Diagnosis Procedure ".

    NO-2: Intake door does not change. Refer to "Diagnosis Procedure ".

    NO-3:

    NOTE: *1: Without left and right ventilation temperature separately control system.
    *2: With left and right ventilation temperature separately control system.

    NO-5: Blower motor operation is malfunctioning. Refer to "Diagnosis Procedure ".

    NO-6: Magnet clutch does not engage. Refer to "Diagnosis Procedure ".

  6. STEP-5: TEMPERATURE OF EACH SENSOR IS CHECKED
    1. Turn temperature control dial (driver side) clockwise.
    2. Code No. 51 appears on the display.

    GO TO 7.

  7. CHECK AMBIENT SENSOR

    Press DEF ( ) switch one time. Temperature detected by ambient sensor is indicated on the display.

    NOTE: Check sensor circuit first if the temperature indicated on the display greatly differs from the actual temperature, and then check sensor.

    Is this inspection result normal? 

    YES: GO TO 8.

    NO: Go to Ambient Sensor Circuit. Refer to "Diagnosis Procedure ".

    Fig 4: Display - Temperature Detected By Ambient Sensor
    G04887557Courtesy of NISSAN NORTH AMERICA, INC.
  8. CHECK IN-VEHICLE SENSOR

    Press DEF ( ) switch for the second time. Temperature detected by in-vehicle sensor is indicated on the display.

    NOTE: Check sensor circuit first if the temperature indicated on the display greatly differs from the actual temperature, and then check sensor.

    Is this inspection result normal? 

    YES: GO TO 9.

    NO: Go to In-vehicle Sensor Circuit. Refer to "Diagnosis Procedure ".

    Fig 5: Display - Temperature Detected By In-Vehicle Sensor
    G04887558Courtesy of NISSAN NORTH AMERICA, INC.
  9. CHECK INTAKE SENSOR

    Press DEF ( ) switch for the third time. Temperature detected by intake sensor is indicated on the display.

    NOTE: Check sensor circuit first if the temperature indicated on the display greatly differs from the actual temperature, and then check sensor.

    Is this inspection result normal? 

    YES: GO TO 10.

    NO: Go to Intake Sensor Circuit. Refer to "Diagnosis Procedure ".

    Fig 6: Display - Temperature Detected By Intake Sensor
    G04887559Courtesy of NISSAN NORTH AMERICA, INC.
  10. CHECK CAN COMMUNICATION ERROR
    1. Press intake switch.
    2. CAN communication error between each unit that uses the unified meter and A/C amp. can be detected as self-diagnosis results. (The display of each error will blink twice for 0.5 second intervals if plural errors occur.)
    Fig 7: Display - CAN Communication Error
    G05973945Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Go to CAN communication (Unified meter and A/C amp. - AV control unit). Refer to "DIAGNOSIS PROCEDURE ".

  11. CHECK MALFUNCTIONING SENSOR AND DOOR MOTOR

    Refer to the following chart for malfunctioning code No.

    (Corresponding code Nos. indicates 1 second each if two or more sensors and door motors malfunction.)

    (Corresponding code Nos. indicates 0.5 second each if two door motors malfunction.)

    Code No. Malfunctioning sensor and door motor (Including circuits) Reference
    21/-21 Ambient sensor "Diagnosis Procedure "
    22/-22 In-vehicle sensor "Diagnosis Procedure "
    24/-24 Intake sensor "Diagnosis Procedure "
    25/-25 Sunload sensor (1) "Diagnosis Procedure "
    26/-26 Air mix door motor PBR(2) "WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM: Diagnosis Procedure "
    Air mix door motor PBR (driver side)(3) "WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM: Diagnosis Procedure "
    27/-27 Air mix door motor PBR (passenger side)(3) "WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL SYSTEM: Diagnosis Procedure "
    (1) Perform self-diagnosis STEP-2 under sunshine.
    (2) Without left and right ventilation temperature separately control system.
    (3) With left and right ventilation temperature separately control system.

    When performing indoors, aim a light (more than 60 W) at sunload sensor, otherwise code No. 25 indicates despite that sunload sensor is functioning normally.

    Fig 8: Display Codes (Sensor Malfunctions)
    G04919046Courtesy of NISSAN NORTH AMERICA, INC.

    INSPECTION END

  12. CHECK MALFUNCTIONING DOOR MOTOR POSITION SWITCH

    Mode and/or intake door motor PBR (s) is/are malfunctioning.

    Code No. (1)(2) Mode or intake door position Reference
    31 VENT Mode door motor "Diagnosis Procedure "
    32 DEF
    37 FRE Intake door motor "Diagnosis Procedure "
    38 20% FRE
    39 REC
    (Corresponding code Nos. indicates 1 second each if two or more mode or intake door motor malfunction.)
    (1) The following display pattern will appear if mode door motor harness connector is disconnected. 31→32→Return to 31
    (2) The following display pattern will appear if intake door motor harness connector is disconnected.

    37→38→39→Return to 37

    Fig 9: Display Codes (Door Motor Malfunctions)
    G04919047Courtesy of NISSAN NORTH AMERICA, INC.

    INSPECTION END

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