Nissan Rogue (T33) 2021-Present Service Manual: Diagnosis System (hvac)

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Manual Air Conditioning :: System Description / Diagnosis System (hvac)

CONSULT Function

CONSULT performs the following functions via CAN communication with A/C amp.

Diagnosis mode Function
Self diagnosis result Display non-network DTC which A/C amp. memorizes
ECU identification The A/C amp. part number is displayed
Active Test The signals used to activate each device are forcibly supplied from A/C amp.
Work support

NOTE:

This item displayed, but cannot be used.
Data monitor The A/C amp. input/output signals are displayed
Replace ECU Writes the Nissan Ariya vehicle specification when replacing the A/C amp.
ECU reprogramming Allows reprogramming when replacing the A/C amp.

NOTE:

Diagnosis should be performed with engine running. Door motor operation speeds become slower and NO results may be returned even for normal operation if battery voltage drops below 12 V during self diagnosis.

Self diagnosis result

Diagnosis result that is judged by A/C amp. can be checked. Refer to DTC Index.

ECU identification

Part number of A/C amp. can be checked.

ACTIVE TEST

The signals used to activate each device forcibly supplied from A/C amp. operation check of air conditioning system can be performed.

NOTE:

Engine must be running for active test functions to work properly.

Test item Operation Description
HVAC TEST OFF OFF
MODE 1 - MODE 7 The operation check of air conditioning system can be performed by selecting the mode. Refer to the following table for the conditions of each mode.
Heater and ventilation seat front left OFF

NOTE:

This item displayed, but cannot be tested.
Heater HI
Vent HI
Heater and ventilation seat front right OFF

NOTE:

This item displayed, but cannot be tested.
Heater HI
Vent HI
Heater and ventilation seat rear left OFF

NOTE:

This item displayed, but cannot be tested.
Heater HI
Vent HI
Heater and ventilation seat rear right OFF

NOTE:

This item displayed, but cannot be tested.
Heater HI
Vent HI
Heated steering wheel request OFF

NOTE:

This item displayed, but cannot be tested.
Heated steering wheel request

Check each output device

— Test item
MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7
Mode door motor position VENT VENT B/L B/L FOOT D/F DEF
Magnetic clutch (A/C compressor request signal) ON ON ON ON OFF OFF ON
Air mix door motor position FULL COLD FULL HOT FULL COLD FULL HOT FULL HOT FULL HOT FULL HOT
Front blower motor control signal (duty ratio) 35% 35% 60% 60% 90% 90% 35%
ECV duty ratio 80% 80% 40% 40% 0% 0% 90%

NOTE:

Perform the inspection of each output device after starting the engine because the A/C compressor is operated.

DATA MONITOR

Input/output signal of A/C amp. can be checked.

NOTE:

The following table includes information (items) inapplicable to this Nissan Ariya vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Display item list
Monitor item [Unit] Description
FAN REQ SIG [On/Off] Displays blower fan ON signal ON/OFF status transmitted to ECM.
A/C compressor clutch status [On/Off] A/C compressor status judged from the A/C compressor feedback signal received from IPDM E/R via CAN communication.
Compressor request signal [On/Off] Displays A/C ON signal ON/OFF status transmitted to ECM.
ODO/TRIP METER km (mile] Odometer signal value received from ABS actuator and electric unit (control unit) via CAN communication.
Rear XM

NOTE:

This item displayed, but cannot be used.
XM °C (°F)

NOTE:

This item displayed, but cannot be used.
PASS IN CAL °C (°F)

NOTE:

This item displayed, but cannot be used.
Compressor ECV duty [%] Duty ratio of electrical control valve.
Nissan Ariya Vehicle speed km/h (mph) Vehicle speed signal value received from ABS actuator and electric unit (control unit) via CAN communication.
AMB TEMP SEN °C (°F) Ambient temperature signal value received from combination meter via CAN communication.
Intake temperature sensor value °C (°F) Evaporator fin temperature value converted from intake sensor signal received from intake sensor.
In-Nissan Ariya vehicle temperature sensor °C (°F)

NOTE:

This item displayed, but cannot be used.
Blower fan duty [%] Duty ratio of front blower motor judged by A/C amp.
Assist seat target air temperature °C (°F)

NOTE:

This item displayed, but cannot be used.
Engine RPM [rpm] Engine speed signal value received from ECM via CAN communication.
Engine coolant temperature °C (°F) Engine coolant temperature signal value received from ECM via CAN communication.
Sun load sensor calculation value [W/m^2]

NOTE:

This item displayed, but cannot be used.
Intake temperature sensor calculation value °C (°F) Evaporator fin temperature value calculated by A/C amp.
In-Nissan Ariya vehicle temperature sensor value °C (°F)

NOTE:

This item displayed, but cannot be used.
Ambient temperature sensor calculation value °C (°F) Ambient temperature value calculated by A/C amp.
Sun load sensor value [W/m^2]

NOTE:

This item displayed, but cannot be used.

Replace ECU

Writes the vehicle specification when replacing the A/C amp.

ECU reprogramming

Allows reprogramming when replacing the A/C amp.

    Operation
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