Tire Pressure Monitor - Warning Lamp ON Constantly
Classification:EL02-035b
Reference:
NTB02-100b
Date:
November 5, 2003
TIRE PRESSURE MONITOR SYSTEM (TPMS) WARNING LIGHT FLASHES OR STAYS ON
This bulletin amends NTB02-100a. This version contains additional Applied Vehicles. Please discard all paper copies of the earlier versions.
APPLIED VEHICLES:
2003 - 2004 350Z (Z33), equipped with TPMS
2003 - 2004 Pathfinder (R50), equipped with TPMS
2003 - 2004 Murano (Z50), equipped with TPMS
IF YOU CONFIRM:
The TPMS Warning Light (see Figure 1) flashes or stays ON,
ACTION:
Use the "TPMS Diagnostic Chart" to resolve the incident.
CLAIMS INFORMATION
Submit a Primary Operation (P0) line claim using the claims coding shown.
IMPORTANT:
The purpose of "ACTION" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire bulletin as it contains information that is essential to successfully completing this repair.
CAUTION: (for Pathfinder & Murano ONLY):
^ Do NOT remove the Long Term Storage Fuse with the ignition key in the ON position.
^ If the storage fuse is removed with the ignition key ON, the Wheel Transmitter ("Wake Up") Activation procedure must be redone.
IMPORTANT INFORMATION:
I.D. Registration:
^ This process "informs" or tells the control unit of each wheel transmitter's location (i.e. LF, RF, RR, and LR).
^ Reason: The control unit must know the location of each transmitter in order to correctly "relay" (send) pressure information about each tire/wheel.
Transmitter "Wake Up" Activation:
^ Turns on ("Wakes Up") each wheel transmitter allowing it to send pressure information to the control unit.
The chart shows some conditions, which may require I.D. Registration and/or Transmitter "Wake Up" Activation.
NOTES:
1) In the case of a low tire pressure condition, the TPMS warning light will come on. To turn the light OFF, do the following:
^ Pump up the tire pressure to the correct setting.
^ Drive the vehicle over 25 MPH for several minutes.
2) Tire pressure signals from the wheel transmitters are updated by the control unit as follows:
Vehicle parked with ignition switch ON
^ Pressure information updated every hour *
Vehicle driven over 20 MPH
^ Pressure information updated every minute
* When the ignition is first turned "ON", CONSULT-II will indicate "0" pressure and will not give an update for 1 hour. To save time, drive the vehicle over 20 MPH for a few minutes. The pressure information will then be updated.
SERVICE PROCEDURE
Wheel Transmitter Activation ("Wake Up") Procedure.
NOTE:
This procedure must be performed using the TPMS Initialization Tool # J-45295.
BEFORE YOU START:
IMPORTANT INFORMATION WHEN PERFORMING THIS ACTIVATION PROCEDURE:
^ Do NOT remove the "Long Term Storage Fuse" (also known as the "Electronic Parts Fuse").
^ Do NOT turn the ignition switch to the OFF position.
^ If you do either of the above, all four wheel transponders will have to be re-activated.
1. Make sure the batteries in the TPMS Initialization Tool # J-45295 are in good, strong condition. If needed, use a tester to check battery condition.
2. Confirm the "Long Term Storage Fuse is installed in the vehicle's fuse panel (see Figure 2).
3. Turn the ignition switch to the ON position.
IMPORTANT:
The wheel transmitters must be activated in the order shown in Figure 3.
4. Position the TPMS Initialization Tool on the tire and center it to the valve stem (see Figure 4).
NOTE:
Do NOT touch the wheel with the TPMS Initialization tool.
5. Press the button on the TPMS Initialization Tool and hold the tool in position until the vehicle parking lights flash twice.
^ This could take up to 15 seconds.
^ The parking light flashes confirm the wheel transmitter (the one you're working on) is activated.
6. Perform step 5 on the remaining wheel transmitters in the order shown in Figure 3.
7. Confirm the TPMS warning light turns OFF after the last wheel transmitter is activated.
8. Turn the ignition key OFF, then ON and confirm the TPMS Warning Light does the following:
^ Comes ON for 1 second, then Turns OFF and stays OFF.