Toyota Tundra (2015 year). Manual — part 2836
(a) When the tire pressure warning light does not go off, or when it turns on during driving, check the tire
pressure. If the tire pressure warning light turns on within several hours after adjusting the tire pressure,
the tire may have a slow air leak.
(b) Under the following conditions, the system may not function properly.
(1) The system will be disabled in the following conditions:
HINT:
When the problem is resolved, the system will operate properly.
Tires without a tire pressure warning valve and transmitter are used.
When a tire pressure warning valve and transmitter ID is not registered in the ECU.
The tire pressure is abnormally high (absolute pressure: 600 kPa (6.1 kgf/cm
2
, 87 psi) or
higher; relative pressure: 500 kPa (5.1 kgf/cm
2
, 73 psi) or higher).
(2) The system may be disabled in the following conditions:
HINT:
When the problem is resolved, the system will operate properly.
the wheel houses.
Any wheels other than the specified ones are used.
Tire chains are used.
(c) If a tire pressure warning valve and transmitter is removed from a wheel, replace the grommets.
(d) After removing and installing the ECU or a sensor, check for a DTC and verify that it is a normal code.
4. FUNCTION OF COMPONENTS
COMPONENTS
FUNCTION
Tire pressure warning
valve and transmitter
Combined as a single unit with a disc wheel air valve, it measures tire pressure and
temperature and transmits a transmitter ID for measurement values and
identification. Has a built-in battery.
Tire pressure warning
antenna and receiver
Receives signals from a transmitter and sends the signals to the tire pressure
warning ECU.
Tire pressure warning
ECU
Determines the current status based on the signals from the receiver, and displays
the status on the combination meter.
Tire pressure warning
light
Tire pressure warning
reset switch
Enters initialization mode for tire or wheel replacement.
5. TIRE PRESSURE WARNING RESET SWITCH
By operating the tire pressure warning reset switch, the tire pressure warning ECU can be set to issue
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: SYST...
To initialize the system, press and hold the tire pressure warning reset switch for 3 seconds or longer
with the ignition switch to ON. When the system receives the initialization signal, the warning light
blinks 3 times (1 second on, 1 second off).
During initialization, the tire pressure warning valve and transmitters measure the inflation pressure of
the tires, and register the signals that are transmitted into the tire pressure warning ECU at a
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: SYST...
NEXT
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Last Modified: 9-16-2014
6.6 D
Doc ID: RM000000XMQ0AAX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING;
2015 MY Tundra [08/2014 - ]
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
Use these procedures to troubleshoot the tire pressure warning system.
*: Use the Techstream.
1.
VEHICLE BROUGHT TO WORKSHOP
2.
CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer to confirm the trouble.
HINT:
It is important to collect as much specific information as possible from the customer to allow for a quick
repair.
3.
ADJUST TIRE PRESSURE*
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and the Techstream on.
(d) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(e) Read the "ID Tire Inflation Pressure" values.
(f) Adjust all tire pressures to the standard values
.
(g) Check the Data List
.
HINT:
It may take up about 5 to 6 minutes to display the updated tire pressure data.
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: HOW ...
A
A
RESULT
PROCEED TO
Tire pressure warning light remains on.
A
Tire pressure warning light goes off.
B
B
Go to step 9
4.
CHECK FOR DTC*
(a) Check for DTC
.
Result
RESULT
PROCEED TO
DTC is output
A
DTC is not output
B
B
Go to step 6
5.
DTC CHART
(a) Refer to the Diagnostic Trouble Code Chart
.
NEXT
Go to step 8
6.
PROBLEM SYMPTOMS TABLE
(a) Refer to the Problem Symptoms Table
.
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: HOW ...
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