Nissan Armada 2025-2026 Service and Repair Manual: ON BOARD DIAGNOSTIC (OBD) SYSTEM : Precautions
The ECM has an on board diagnostic system. It will illuminate the malfunction indicator lamp (MIL) to warn the driver of a malfunction causing emission deterioration.
CAUTION:
Always turn the ignition switch OFF and disconnect the negative battery cable before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause the MIL to illuminate.
Always connect and lock the connectors securely after work. A loose (unlocked) connector will cause the MIL to illuminate due to the open circuit. (Be sure the connector is free from water, grease, dirt, bent terminals, etc.)
Certain systems and components, especially those related to OBD, may use a new style slide-locking type harness connector. For description and how to disconnect, Refer to Harness Connector.
Always route and secure the harnesses properly after work. The interference of the harness with a bracket, etc. may cause the MIL to illuminate due to the short circuit.
Always connect rubber tubes properly after work. A misconnected or disconnected rubber tube may cause the MIL to illuminate due to the malfunction of the EVAP system or fuel injection system, etc.
Always erase the unnecessary malfunction information (repairs completed) from the ECM and TCM (Transmission control module) before returning the vehicle to the customer.
Other materials:
Work Procedure
Description
When TCU is replaced, TCU configuration is required.
Preparation before configuration operation
Subscribe to telematics service.
Preregister user ID and password (can be performed from owner homepage).
Since VIN data is not included in the TCU after replacement, it is required to write ...
Adjustment
FITTING ADJUSTMENT
Fitting Adjustment Standard Dimension
Hood assembly Front grille Front combination lamp Front fender assembly Hood hinge Hood bumper rubber 1 Hood lock assembly : N·m (kg-m, ft-lb) : Body grease
Unit: mm [in]
Portion Standard ToleranceDifference
(RH/LH, MAX) Hood as ...
Removal and Installation
WARNING:
REMOVAL
The ignition switch OFF.
CAUTION:
Wait for 60 seconds after the ignition switch OFF.
Disconnect negative battery terminal. Refer to Removal and Installation.
Remove glove box cover. Refer to Removal and Installation.
Disconnect transfer control unit harness connector.
Remove transf ...
0.0055