Toyota Sienna Service Manual: Problem symptoms table
RESULT LIST OF CHECK CAN BUS LINE
|
Symptom |
Suspected Area |
| All ECUs and sensors connected to the CAN communication system are not displayed on intelligent tester | CAN Bus Line |
| The result of "CAN BUS WIRE CHECK" is "Open in CAN Main Bus Line". | Open in CAN Main Bus Line |
| The result of "CAN BUS WIRE CHECK" is "Short in CAN Bus Lines". | Short in CAN Bus Lines |
| The result of "CAN BUS WIRE CHECK" is "Short to B+ in CAN Bus Line". | Short to B+ in CAN Bus Line |
| The result of "CAN BUS WIRE CHECK" is "Short to GND in CAN Bus Line". | Short to GND in CAN Bus Line |
COMMUNICATION STOP MODE TABLE
|
Symptom |
Suspected Area |
| Engine not displayed on intelligent tester | 1. ECM Communication Stop Mode |
| Gateway not displayed on intelligent tester | 1. Gateway ECU Communication Stop Mode |
| ABS/ VSC/ TRC not displayed on intelligent tester. *1 | 1. Skid control ECU Communication Stop Mode |
| Yaw rate/ deceleration sensor not displayed intelligent tester. *1 | 1. Yaw Rate Sensor Communication Stop Mode |
| Steering angle sensor not displayed on intelligent tester. *1 | 1. Steering Angle Sensor Communication Stop Mode |
| Distance control not displayed on intelligent tester. *2 | 1. Distance Control ECU Communication Stop Mode |
HINT:
- *1: with VSC
- *2: with Dynamic radar cruise control
How to proceed with
troubleshooting
NOTICE:
DTCs for the CAN communication system are as follows:
U0073, U0100, U0122, U0123, U0124, U0126 and U1101.
HINT:
If U0235 or U1102 is output alone, the CAN communication is
normal
1 CHECK ...
Terminals of ECU
1. JUNCTION CONNECTOR
Junction connector
with VSC
HINT:
*1: with Dynamic laser cruise control
without VSC
CAN junction connector (with VSC)
with VSC
The connection ...
Other materials:
Sound Signal Circuit between Radio Receiver and Stereo Component
Amplifier
DESCRIPTION
The radio receiver sends a sound signal to the stereo component amplifier
through this circuit.
The sound signal that has been sent is amplified by the stereo component
amplifier, and then is sent to
the speakers.
If there is an open or short in the circuit, sound cannot be h ...
Disassembly
1. REMOVE PARKING BRAKE PEDAL BRACKET PROTECTOR
(a) Using a flat-head screwdriver, disengage the 2
claws on the parking brake pedal bracket protector.
(b) Turning the parking brake pedal bracket protector
clockwise, remove the parking brake pedal bracket
protector from the parking brake ...
Removal
CAUTION:
Wear safety gloves, because the sharp surfaces of the
seatback frame and seat adjuster may injure your
hand.
Work must be started more than 90 seconds after the
ignition switch is turned to the LOCK position and the
negative (-) terminal cable is disconnected from ...
