Classification:
EC14-016
Reference:
NTB14-107
Date:
November 20, 2014
NISSAN; DIAGNOSIS OF POOR ACCELERATION OR LACK OF POWER
APPLIED VEHICLES:
All Nissan vehicles with an Electric Throttle Chamber
SERVICE INFORMATION
If a customer describes lack of power or poor acceleration, perform the following checks before attempting any repair:
^
Check for stored DTCs.
^
Check if the driver is resting their left foot on the brake pedal while accelerating. Advise the customer not to rest their foot on the brake while accelerating.
^
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 brake switch "ON":
^
Brake switch incorrectly adjusted (switch is adjusted ON when it should be OFF).
^
Damaged brake lamp wiring/circuit (damage causes signal to ECU to show ON when it should be OFF).
NOTE : Refer to the Electronic Service Manual (ESM) for correct brake switch adjustment and/or circuit diagnosis as applicable.
