Toyota Sienna Service Manual: Diagnosis system
1. CHECK DLC3
- The vehicle uses ISO 15765-4 communication
protocol.
The terminal arrangement of the DLC3 complies with SAE 1962 and matched the ISO 15765-4 format.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
Terminals of ECU
1. FOLD SEAT CONTROL ECU LH
Disconnect the fold seat control ECU connectors.
Measure the voltage and resistance of the wire
harness side connectors.
If the result is not as specifie ...
On-vehicle inspection
1. CHECK POWER REAR NO. 2 SEAT with STOWING FUNCTION
Check the basic functions.
Operate the fold seat switch and power rear
No.2 seat switch and check to make sure each
seat ...
Other materials:
Sensor detection display, obstacle distance
Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
*1: The images may differ from that shown in the illustrations.
*2: Multi-information display
*3: Audio system screen
Buzzer operation and distance to an obstacle
A buzzer sounds when the sensors are o ...
Steering wheel audio
switches
Some audio features can be controlled using the switches on
the steering wheel.
Operation may differ depending on the type of audio system or
navigation system. For details, refer to the manual provided with
the audio system or navigation system.
Operating the audio system using the steering ...
Disassembly
1. REMOVE SIDE DEFROSTER NOZZLE DUCT NO.1
(a) Remove the 2 screws <C> and defroster nozzle
duct No. 1.
2. REMOVE SIDE DEFROSTER NOZZLE DUCT NO.2
(a) Remove the 2 screws <C> and defroster nozzle
duct No. 2.
3. REMOVE DEFROSTER NOZZLE ASSEMBLY
(a) Remove the 4 screws <C> and d ...
