Nissan Armada 2025-2026 Service and Repair Manual: Frame Deformation
In a frame type vehicle, an independent body and frame are joined at the body mount points. Therefore, when the vehicle suffers impact from the front or rear in a collision, most of the impact is absorbed by deformation of the frame and deformation in the body is minimized. Another point different from the uni-body is that the frame and the body can be repaired separately.
Basically, frame deformations are classified into the following types.
Frame Repair Procedure
In general, a task to repair a frame damaged by a traffic accident (straightening and entire or partial replacement) is performed according to the following procedure.
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Sagging
This refers to upward or downward bending of a side frame due to strong impact from the front or rear that occurs when the vehicle receives a rear-end collision or performs sudden braking with an exce ...
Other materials:
Precautions for Frame Repair
To eliminate any residual stress from the frame, always perform hammering during straightening work. This is extremely important because residual stress removal is more difficult in frames than in side members of uni-body vehicles. Any wrinkles generated in the frame and residual stress in the frame ...
Inspection
SIDE RADAR IRRADIATION AREA
For side radar irradiation area, refer to the figure below.
Rear bumper fascia Side radar irradiation area Reference point (R end) C 115 mm
(4.53 in) (vertical line) D 70 mm
(2.76 in) (vertical line) E 215 mm
(8.46 in) (horizontal line) F 105 mm
(4.13 in) (vertic ...
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 the ECM does not operate properly in case of reuse of the ECM from another vehicle.
PROGRAMMING OPERAT ...
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