Toyota Sienna Service Manual: 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.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
- When replacing the tire pressure warning ECU, read the IDs stored in the ECU using the intelligent tester and write 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 CHECK HARNESS AND CONNECTOR (ECU - RECEIVER)
(a) Disconnect the T15 ECU connector.
(b) Disconnect the T16 receiver connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance 
2 CHECK TIRE PRESSURE WARNING ECU
(a) Reconnect the T15 ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage
REPLACE TIRE PRESSURE WARNING ANTENNA AND RECEIVER (See page TW-81)
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 bee ...
Initialization not Completed
DTC C2177/77 Initialization not Completed
DESCRIPTION
Initialization is necessary after replacing any of the ECUs, tires with
different tire pressure, or tire pressure
warning valve and transmitt ...
Other materials:
Diagnostic trouble code chart
If a malfunction code is displayed during the DTC check,
check the circuit listed for that code in the table below.
(Proceed to the page given for that circuit.)
POWER BACK DOOR SYSTEM
DTC No.
Detection Item
Trouble Area
B2222
PBD Pulse Sensor Malfuncti ...
Changing the rear setting
Adjusting the temperature setting
Press the “REAR” button (indicator and rear temperature on the
display on).
Turn the “REAR TEMP” dial clockwise to increase the temperature
and counterclockwise to decrease the temperature.
The air conditioning system switches between individual ...
Initialization procedure
(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.
(e) Press the tire pressure warning reset sw ...
