Nissan Armada 2025-2026 Service and Repair Manual: Work Procedure
Work Procedure (Before Replacing ECM)
NOTE:
After replacing with a blank ECM, programming is required to write ECM information. Be sure tofollow the procedure to perform the programming. According to the procedure of “Programming” in CONSULT Operation Manual.
SAVE ECM DATA
With CONSULT
Ignition switch OFF.
Reconnect all harness connectors disconnected.
Ignition switch ON.
Select “Replace ECU” of “ECM” using CONSULT.
Follow the instruction of CONSULT display.
NOTE:
ECM data is saved to CONSULT.
>>Replace ECM.
After replacing ECM, perform necessary work.
Work Procedure (After Replacing ECM)
WRITING VEHICLE SPECIFICATION
With CONSULT
Write vehicle specification to ECM according to "Replace ECU" in CONSULT Operation Manual.
CAUTION:
During programming, maintain the following conditions:
Ignition switch: ON
Electric load: OFF
Brake pedal: Not depressed
Battery voltage: 12 – 13.5 V (Check the value displayed on the CONSULT screen.)
GO TO 2.
PERFORM VIN REGISTRATION
Refer to Work Procedure.
>>GO TO 3.
WRITING MAC KEY FOR ECM
Refer to Work Procedure.
>>GO TO 4.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
Refer to Work Procedure.
>>GO TO 5.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Refer to Work Procedure.
>>GO TO 6.
WASTEGATE VALVE CLOSED POSITION LEARNING
Refer to Work Procedure.
>>GO TO 7.
ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR REFERENCE POSITION LEARNING
Refer to Work Procedure.
>>GO TO 8.
PERFORM IDLE AIR VOLUME LEARNING
Refer to Work Procedure.
>>GO TO 9.
CHANGE ENGINE OIL
Change engine oil, then perform ENGINE OIL DATE RESET. Refer to Work Procedure.
NOTE:
When replacing ECM, OCS data cannot be transferred. In addition, ENGINE OIL DATE RESET is performed, and therefore oil change is required.
>>GO TO 10.
ERASE DTC
With CONSULT
Ignition switch OFF and wait at least 10 seconds.
Ignition switch ON.
Ignition switch OFF and wait at least 10 seconds.
Ignition switch ON.
Check “Self diagnosis result” of “ECM”.
Is any DTC detected?
YES>>Erase DTC.
NO>>END
Additional Service When Replacing Ecm
When replacing ECM, the following procedure must be performed. (For details, refer to Work Procedure.)
CAUTION:
When replacing the ECM, always replace it with a new one. The functions controlled by th ...
Vin Registration
VIN Registration is an operation to registering VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection & Maintenan ...
Other materials:
High Strength Steel (HSS) and Ultra High Strength Steel (UHSS)
High strength steel and ultra high strength steel are used for body panels in order to reduce vehicle weight.
Accordingly, precautions in repairing automotive bodies made of high strength steel are described below:
UNDERBODY COMPONENT PARTS
ENGINE COMPARTMENT COMPONENT PARTS
Tensile strength Appl ...
Diagnosis Procedure
CHECK “INTELLIGENT KEY SYSTEM ANSWER BACK FUNCTION SETTING” SETTING IN “WORK SUPPORT”
Select “INTELLIGENT KEY” using CONSULT.
Select “Intelligent Key system answer back function setting” in “Work support” mode.
Check the “Intelligent Key system answer back function setting” i ...
Diagnosis Procedure
CHECK DTC OF TRANSFER CONTROL UNIT
With CONSULT
Ignition switch ON.
Perform self-diagnosis for “AWD/4WD”.
Is any DTC detected?
YES >>
Check DTC detected item. Refer to DTC Index.
NO>>
GO TO 2.
CHECK 4WD SHIFT INDICATOR
Check 4WD shift indicator function. Refer to Component Functio ...
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