Nissan Pathfinder: Road Wheels & Tires - System

• Tire Pressure Monitoring System
• Low Tire Pressure Warning
• Tire Pressure Display
• Easy Fill Tire Alert Function

Tire Pressure Monitoring System Nissan Pathfinder SUV

System Description

• During driving, the TPMS (tire pressure monitoring system) receives the signal transmitted from tire pressure sensor installed in each wheel. The BCM of this system has pressure judgment and trouble diagnosis functions. When the TPMS system detects low inflation pressure or another unusual symptom, the low tire pressure warning lamps in the combination meter comes on.

• If the tire pressure is less than the warning tire pressure value, the low tire pressure warning lamp illuminates.

• Location of wheel is specified due to the synchronism of wheel sensor position and tire pressure sensor position.

• The TPMS system is activated when the Nissan Pathfinder vehicle speed is 25 MPH (40 km/h) or more.

• The TPMS system has easy fill tire alert function to aid in the inflation.

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

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

LOW TIRE PRESSURE WARNING LAMP AND INFORMATION DISPLAY INDICATIONS

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

HAZARD WARNING LAMP INDICATION CONDITION

The hazard warning lamp blinks under the following conditions:

• When ID registration is completed. Refer to Description.

• During the use of the inflation indicator function.

HORN CONTROL CONDITION

During the use of the easy fill tire alert function.

WARNING LAMP/INDICATOR LAMP

FULL TFT METER

Name	Design	Layout/Function
Low tire pressure warning lamp		For layout, refer to Design.
		For function, refer to Low Tire Pressure Warning.

7 INCH INFORMATION DISPLAY

Name	Design	Layout/Function
Low tire pressure warning lamp		For layout, refer to Design.
		For function, refer to Low Tire Pressure Warning.

Warning/Indicator (On Information Display)

Low Tire Pressure Warning Nissan Pathfinder 5th Gen

System Description

SYSTEM DIAGRAM

Signal transmission function list

DESIGN/PURPOSE

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

• Tire pressure is low.

• Tire goes flat.

SYNCHRONIZATION WITH MASTER WARNING LAMP

Applicable to low tire pressure warning lamp lighting by low air pressure.

SIGNAL PATH

• BCM receives a signal transmitted from the tire pressure sensors installed in each wheel.

• If BCM detects following condition, it sends the signal to the combination meter via CAN communication:

  • Tire pressure is low

• Combination meter turns the low tire pressure warning lamp ON. In addition, warning message will be displayed in the information display.

WARNING/INDICATOR OPERATION CONDITION

• Tire pressure is low

• Tire pressure is extremely low (flat tire)

WARNING/INDICATOR CANCEL CONDITION

• Erasing DTC records.

• Tire pressure of all the tires reaches the reference value. For the reference value of tire pressure, refer to Tire Air Pressure.

TIMING CHART

Tire Pressure Display Nissan Pathfinder SUV

System Description

SYSTEM DIAGRAM

Signal transmission function list

TIRE PRESSURE DISPLAY

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

SIGNAL PATH

• BCM receives a signal transmitted from the tire pressure sensors installed in each wheel.

• BCM transmits a tire pressure data signal to the combination meter via CAN communication.

• The combination meter displays tire pressure of each tire on the information display when receiving a tire pressure data signal.

Easy Fill Tire Alert Function Nissan Pathfinder R53

System Description

NOTE:

• The tire easy fill tire alert function is recommended to be used with the ignition switch ON.

• When beginning tire inflation, it takes a few seconds for the easy fill tire alert function. If there is no response for approximately 15 seconds or more, cancel the easy fill tire alert function and move the Nissan Pathfinder 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.

Unit Removal and Installation. Transfer Assembly ++Brake System