One or more of these faults may be present and these faults may be intermittent.
In the absence of the power seat related symptoms, failure of the central locking and electric mirrors (even taking into account fault codes present and consultation of wiring diagrams) is likely to lead the technician to believe that there is an issue with the Body Control Module.
This issue is however in fact caused by incorrect factory installation of the wiring harness for the drivers power seat causing the wiring to fracture over time.
The fact that the seat moves each time the driver enters and exits the vehicle further exacerbates the issue.
The fracture in the wiring harness usually occurs at the junction shown below.
In some circumstances, depending on which of the wires in the harness are compromised, the electric seat may operate whilst the vehicle is being driven which may lead to an accident.
A recall has been issued by Nissan Motor Company which can be found here
The purpose of this article is to mitigate the incorrect diagnosis of the Body Control Module.
Remove the drivers seat and remove all tubing from the wiring harness.
While it may be possible to carry out a repair to the damaged wiring in the harness, we recommend that it is replaced.
Ensure the wiring harness is adequately secured to the seat frame and that no stretching or pinching of the harness will occur during normal operation.
Assemble and check operation of all functions relating to the power seat, mirror and central locking functions.