Down on Power With Nissan
This bulletin applies to all Nissan vehicles equipped with an electric throttle chamber for example, 2015 Altima, where the customer complains of a lack or power/poor acceleration. First check for DTCs and address as needed. Check to see if the driver has a habit of resting his/her foot on the brake pedal while driving. Advise the customer not to rest their foot on the brake while accelerating.
Also, use Consult-III plus in Engine Data Monitor to check operation of the brake lamp circuit signal. Monitor the brake switch during the incident ... it should be “off.” Causes of the brake switch on condition can include an incorrectly adjusted brake switch or a damaged brake map wiring/circuit. Damage can cause a signal to the ECM to show on when it should be off.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike MavrigianMike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
