Nissan Maxima Service and Repair Manual: Fuel filler cap warning system

System Diagram

Nissan Maxima. System Diagram

System Description

INPUT/OUTPUT SIGNAL CHART

Input

Nissan Maxima. Input

*: This signal is sent to the ECM via the CAN communication line.

Output

Nissan Maxima. Output

*: This signal is sent to the combination meter via the CAN communication line.

SYSTEM DESCRIPTION

The fuel filler cap warning system alerts the driver to the prevention of the fuel filler being left uncapped and malfunction occurrences after refueling, by turning ON the fuel filler cap warning display on the combination meter.

ECM judges a refueled state, based on a fuel level signal transmitted from the combination meter.

When a very small leak is detected through the EVAP leak diagnosis performed after judging the refueled state, ECM transmits a fuel filler cap warning display signal (request for display ON) to the combination meter via CAN communication.

When receiving the signal, the combination meter turns ON the fuel filler cap warning display.

CAUTION: Check fuel filler cap installation condition when the fuel filler cap warning display turns ON.

Reset Operation

The fuel filler cap warning lamp tunes OFF, according to any condition listed below:

  • Reset operation is performed by operating the meter mode switch on the combination meter.
  • When the reset operation is performed, the combination meter transmits a fuel filler cap warning reset signal to ECM via CAN communication. ECM transmits a fuel filler cap warning display signal (request for display OFF) to the combination meter via CAN communication. When receiving the signal, the combination meter turns OFF the fuel filler cap warning display.
  • EVAP leak diagnosis result is normal.
  • Fuel refilled.
  • DTC erased by using CONSULT-III.

NOTE: MIL turns ON if a malfunction is detected in leak diagnosis results again at the trip after the fuel filler cap warning display turns ON/OFF.

    Variable induction air system
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *: ECM determines the start signal status by the signals of engine speed and battery voltage. SYSTEM DESCRIPTION In the m ...

    On board diagnostic (OBD) system
    Diagnosis Description This system is an on board diagnostic system that records exhaust emission-related diagnostic information and detects a sensors/actuator-related malfunction. A malfunction i ...

    Other materials:

    Forward Emergency Braking (FEB) (if so equipped)
    WARNING Failure to follow the warnings and instructions for proper use of the FEB system could result in serious injury or death. The FEB system is a supplemental aid to the driver. It is not a replacement for the driver's attention to traffic conditions or responsibility to drive safel ...

    Car phone or CB radio
    When installing a CB, ham radio or car phone in your vehicle, be sure to observe the following precautions; otherwise, the new equipment may adversely affect the engine control system and other electronic parts. WARNING A cellular phone should not be used for any purpose while driving so ...

    Towing your vehicle
    When towing your vehicle, all State (Provincial in Canada) and local regulations for towing must be followed. Incorrect towing equipment could damage your vehicle. Towing instructions are available from a NISSAN dealer. Local service operators are generally familiar with the applicable laws an ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0154