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:
Problem symptoms table
When a "Normal" code is output during a DTC check but
the problem still occurs, use the Problem Symptoms
Table. The suspected areas (circuits or parts) for each
problem symptoms are in the table. The suspected areas
are listed in order of probability. A description of each of
the char ...
Shift Solenoid "E" Control Circuit
DESCRIPTION
Shifting from 1st to 5th is performed in combination with "ON" and "OFF"
operation of the shift solenoid
valves SL1, SL2, SL3, S4 and SR which are controlled by the ECM. If an open or
short circuit occurs in
either of the shift solenoid valves, the ECM cont ...
Evaporative Emission System Switching Valve Control Circuit High
DTC SUMMARY
DESCRIPTION
The circuit description can be found in the EVAP (Evaporative Emission)
System (See page ES-404).
INSPECTION PROCEDURE
Refer to the EVAP System (See page ES-404).
MONITOR DESCRIPTION
5 hours*1 after the ignition switch is turned off, the electric vacuum pump
...
