Toyota Sienna Service Manual: Transmitter ID not Registered
DTC C2171/71 Transmitter ID not Registered
DESCRIPTION
The IDs of each tire pressure warning valve and transmitters are registered to the tire pressure warning ECU.
When the IDs have never been registered, a DTC is output.
INSPECTION PROCEDURE
NOTICE:
- When replacing the tire pressure warning ECU, read the IDs stored in the ECU using the intelligent tester and note them down before removal.
- It is necessary to perform initialization (See page TW-23) after registration (See page TW-20) of the transmitter IDs into the tire pressure warning ECU after the ECU has been replaced.
1 CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES)
(a) Make sure that the ignition switch is off.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select REGIT ID CODE by following the prompts displayed on the intelligent tester.
TIRE PRESSURE:
OK: The registered transmitter ID codes are displayed on the intelligent tester screen.
REPLACE TIRE PRESSURE WARNING ECU (See page TW-87)
2 PERFORM REGISTRATION (TRANSMITTER ID)
(a) Register the transmitter IDs for all the wheels (See page TW-20).
3 PERFORM INITIALIZATION
(a) Perform initialization (See page TW-23).
4 READ VALUE ON DATA LIST
(a) Make sure that the ignition switch is off.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select "TIREPRESS" by following the prompts displayed on the intelligent tester.
TIRE PRESSURE:
HINT: *: It may take about 5 to 6 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 (See page TW-42).
Result 
END
Abnormal Temperature Inside ID1 Tire
DESCRIPTION
Each tire pressure warning valve and transmitter measures the internal
temperature of its tire as well as
tire pressure, and transmits the information to the tire pressure warning ...
Receiver Error
DTC C2176/76 Receiver Error
DESCRIPTION
The signals are transmitted to the tire pressure warning antenna and receiver
on the body as radio waves
and then sent to the tire pressure warning ECU.
...
Other materials:
Installation
1. INSTALL FRONT DOOR WINDOW FRAME MOULDING
Remove the tape from the front door window frame
moulding.
Clean the contact surface of the vehicle body with
white gasoline.
Clean the outer circumference of the front door
window frame moulding with white gasoline.
Apply new double-si ...
Diagnosis system
1. DESCRIPTION
(a) Release the parking brake pedal.
(b) Check the warning lights.
When ignition switch is turned ON, check that the
ABS warning light and brake warning light come on
for 3 seconds.
HINT:
When parking brake is applied or the level of the
brake fluid is low, the bra ...
Grocery bag hooks
The hooks are designed to hang things like a grocery bag.
Type A (front seatback)
(if equipped)
Type B (third seatback)
Type C (luggage compartment)
Type D (luggage compartment)
Pull the hook up.
WARNING
Type C: When not in use, keep the grocery ...
