Toyota Sienna Service Manual: TC and CG Terminal Circuit
DESCRIPTION
DTC output mode is set by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are indicated by blinks of the tire pressure warning light.
WIRING DIAGRAM
HINT: When each warning light blinks continuously, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in an ECU connected to this circuit may have occurred.
INSPECTION PROCEDURE
NOTICE: When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the intelligent tester and write them down before removal.
It is necessary to register an ID code after replacing the tire pressure warning valve and transmitter and/or the tire pressure warning ECU (See page TW-20).
1 CHECK HARNESS AND CONNECTOR (DLC3 - TIRE PRESSURE WARNING ECU)
(a) Disconnect the T15 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance 
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See page TW-28)
ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When replacing the tire pressure warning ECU, read the transmitter IDs
st ...
Tire pressure warning receiver (w/ antenna)
Components
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Other materials:
Programming the HomeLink® (for U.S.A. owners)
The HomeLink® compatible transceiver in your vehicle has 3 buttons
which can be programmed to operate 3 different devices. Refer to the
programming method below appropriate for the device.
Indicator light
Buttons
Programming the HomeLink®
Point the remote control for
the d ...
Removal
1. DISCHARGE FUEL SYSTEM PRESSURE
2. REMOVE V-BANK COVER SUB-ASSEMBLY
3. DRAIN ENGINE COOLANT
4. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
5. REMOVE FRONT OUTER COWL TOP PANEL SUBASSEMBLY
6. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY
8. REMOVE INTAKE AIR SURGE TA ...
Precaution
1. Before operating the power rear no. 2 seat with
stowing function, make sure that there is nothing in
the path of the seat.
CAUTION:
If someone or something is caught between the seat
and other parts, injury or damage may result.
If the system detects that the folding motor is locke ...
