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:
The Blind Spot Monitor function detection areas
The areas that vehicles can be detected in are outlined below.
The range of the detection area
extends to:
Approximately 11.5 ft. (3.5 m)
from the side of the vehicle
The first 1.6 ft. (0.5 m) from the
side of the vehicle is not in the
detection area
Approximately 9.8 ft. (3 m) ...
Battery
Check the battery as follows:
Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
Before recharging
When recharging, the battery produces hydrogen gas which is flammable an ...
If your vehicle overheats
The following may indicate that your vehicle is overheating.
The needle of the engine coolant temperature gauge
enters the red zone or a loss of engine power is experienced. (For
example, the vehicle speed does not increase.)
The warning message indicating overheats is shown on the
mult ...
