Nissan Armada 2025-2026 Service and Repair Manual: Work Procedure
WRITING THE REQUIRED INFORMATION FOR CONTROL UNIT REPLACEMENT
With CONSULT
Ignition switch ON.
Select "AWD/4WD".
Select "Replace ECU".
Perform the work according to the procedure displayed in CONSULT.
CAUTION:
The following conditions must be maintained during ECU modernization procedure.
Ignition switch ON.
All electric loads are OFF
Brake pedal is not depressed.
Battery voltage: 12-13.5 V (Be sure to check the value of battery voltage by CONSULT.)
NOTE:Writing of control unit information is performed automatically.
GO TO 2.
WRITING UNIT PARAMETER
Perform writing of the unit parameter to transfer control unit. Refer to Work Procedure.
>>GO TO 3.
INITIAL CALIBRATION
Continue the following condition.
Transmission position : P
4WD mode : AUTO
Depress the brake pedal.
Start the engine and wait for approximately 10 seconds under the brake pedal depressed.
GO TO 4.
PERFORM SELF-DIAGNOSIS
With CONSULT
Erase self-diagnostic results for “AWD/4WD”.
Ignition switch ON to OFF.
CAUTION:
Wait for 60 seconds after ignition switch OFF.
Depress the brake pedal.
Start the engine.
CAUTION:
Never drive the vehicle.
Perform self-diagnosis for “AWD/4WD”.
Is any DTCs detected?
YES>>Check DTC detected item. Refer to DTC Index.
NO>>WORK END
Additional Service When Replacing Transfer Control Unit
When replacing transfer control unit, the following work is required. For the work procedure, refer to Work Procedure.
WORK AFTER REPLACEMENT
Unit parameter writing
Initial calibration
...
Unit Parameter Writing
After working the following, transfer unit parameter must be written to transfer control unit.
Transfer control unit replacing
Transfer assembly replacing
Transfer control actuator replacing
Transfer ...
Other materials:
Removal and Installation
CAUTION:
Disconnect battery negative terminal or remove power circuit fuse when performing the operation for preventing electric leakage. Refer to Precautions for Removing Battery Terminal.
REMOVAL
Remove rear spoiler cover. Refer to Removal and Installation.
Remove high-mounted stop lamp fixing scr ...
Intelligent Key battery discharge
If the Intelligent Key battery in your Nissan Armada becomes discharged, or if
external conditions such as interference affect its operation, the engine can still
be started using an alternative method. This ensures continued usability of the
Nissan Armada even in low-battery situations. ...
Types of tires
Basic information
WARNING
When replacing tires on your Nissan Armada, always ensure that all four
tires are identical in type (for example: Summer, All Season, or Snow) as well
as in construction.
Using mismatched tires can negatively impact vehicle stability, handling,
and safety ...
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