Toyota Sienna Service Manual: 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 diagram of the components which are connected to the CAN junction connector.
2. DLC3
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3. ECM
- Disconnect the connector from the ECM.
- Measure the resistance according to the value(s) in the table below
Standard resistance
4. NETWORK GATEWAY ECU
- Disconnect the connector from the netwark gateway ECU.
- Measure the resistance according to the value(s) in the table below
Standard resistance
5. SKID CONTROL ECU WITH ACTUATOR
- Disconnect the connector from the skid control ECU with actuator.
- Measure the resistance according to the value(s) in the table below
Standard resistance
6. STEERING ANGLE SENSOR
- Disconnect the connector from the steering angle sensor.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
7. YAW RATE SENSOR
- Disconnect the connector from the yaw rate sensor.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
8. DISTANCE CONTROL ECU
- Disconnect the connector from the distance control ECU.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
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 ...
Diagnosis system
1. BUS CHECK
Select "BUS CHECK" from the "OBD/MOBD
MENU" screen.
HINT:
The ECUs and sensors that are properly connected
to the CAN communication system can be displaye ...
Other materials:
Front Occupant Classification Sensor RH Collision
Detection
DTC B1786 Front Occupant Classification Sensor RH Collision
Detection
DESCRIPTION
DTC B1786 is output when the occupant classification ECU receives a collision
detection signal sent by
the front occupant classification sensor RH if an accident occurs.
DTC B1786 is also output when the front ...
Inspection
1. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR
(a) Using a dial gauge , check the runout of the ring
gear.
Maximum runout:
0.07 mm (0.0028 in.)
If the runout is greater than the maximum, replace
the ring gear with a new one.
2. INSPECT DIFFERENTIAL RING GEAR BACKLASH
(a) Using a dial gauge, ...
Diagnostic trouble code chart
If a malfunction code is displayed during the DTC check,
check the circuit listed for that code in the table below.
(Proceed to the page given for that circuit.)
BACK DOOR CLOSER SYSTEM
DTC No.
Detection Item
Trouble Area
B2215
Back Door Closer Switch
...