Nissan Murano: Road Wheels & Tires :: System Description / System

System Description

When the vehicle has reached a speed of 25 MPH (40 km/h) or greater, the BCM receives a signal transmitted from the tire pressure sensors/transmitters installed in each wheel. If the BCM detects low inflation pressure or a system malfunction, it sends a signal to the combination meter via CAN communication to illuminate the low tire pressure warning lamp. In addition, a warning message will be displayed in the Nissan Murano vehicle information display. Refer to the Owner’s Manual for additional information.

The tire pressure monitoring system (TPMS) has a Easy fill tire alert function to aid in tire inflation. Refer to Easy Fill Tire Alert Function.

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table:

LOW TIRE PRESSURE WARNING LAMP AND INFORMATION DISPLAY INDICATIONS

Uses CAN communication from the BCM to illuminate the low tire pressure warning lamp on the combination meter.

Name	Design	Layout
Low tire pressure warning lamp		Refer to Design.

LOW TIRE PRESSURE LOCATION INDICATOR

The low tire pressure location indicator is displayed in the vehicle information display of the combination meter with the low tire pressure warning lamp and warning message under the following conditions:

• Tire pressure is low.

• TPMS detected a system malfunction.

• Tire pressure is extremely low (flat tire).

TIRE PRESSURE DISPLAY

The adoption of this function allows tire pressure indication on the information display installed to the combination meter.

HAZARD WARNING LAMP INDICATION CONDITION

The hazard warning lamp blinks when ID registration is completed. Refer to Work Procedure.

BUZZER CONTROL CONDITION

BCM transmits a buzzer request signal to combination meter. Based on the signal, BCM sends a command to the combination meter to sound the buzzer.

The buzzer sounds under the following conditions:

• When wake-up of registered wheel has been completed. Refer to Work Procedure.

• When tire goes flat.

NOTE:

When beginning tire inflation, it takes a few seconds for the Easy fill tire alert to function. If there is no response for approximately 15 seconds or more, cancel the Easy fill tire alert function and move the Nissan Murano vehicle approximately 3.2 ft (1 m) backward or forward to try again.

• The Easy fill tire alert function operates only when the select lever position is in P-range with the ignition switch ON.

• This function informs the driver with a visual and audible indication that the recommended COLD tire pressure has been reached.

• The hazard warning lamps blink when the recommended COLD tire pressure has been reached. After the recommended COLD tire pressure has been reached, the horn sounds once and the hazard warning lamps stop blinking.

  

• If the tire pressure value is equal to or greater than 4 psi (30 kPa, 0.31 kg/cm²) more than the recommended COLD tire pressure, the hazard warning lamps flash and horn sounds three times.

• To return the tire to the recommended COLD tire pressure, deflate the tire until the horn sounds once and the hazard warning lamps stop blinking.