Toyota Sienna Service Manual: Terminals of ECU
1. CHECK OUTER MIRROR CONTROL ECU LH
- Disconnect the O9 and O10 connectors.
- Measure the voltage and resistance according to the value(s) in the table below.
Voltage
Resistance
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O9 and O10 connectors.
- Measure the voltage according to the value(s) in the table below
Voltage
If the result is not as specified, there may be a malfunction on the ECU side.
2. CHECK OUTER MIRROR CONTROL ECU RH
- Disconnect the O11 and O12 connectors.
- Measure the voltage and resistance according to the value(s) in the table below.
Voltage
Resistance
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the O11 and O12 connectors.
- Measure the voltage according to the value(s) in the table below.
Voltage
If the result is not as specified, there may be a malfunction on the ECU side.
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptoms. The potential causes of the symptoms
are listed in order of probability in the ''Suspected Area''
column ...
Diagnosis system
1. DESCRIPTION
When troubleshooting a vehicle with the diagnosis
system, the only difference from the usual
troubleshooting procedure is connecting the
intelligent tester to the vehicl ...
Other materials:
Cranking Holding Function Circuit
DESCRIPTION
The system detects the ignition switch's starting signal (STSW) and then
supplies current to the starter
until the ECM judges that the engine has started successfully. The purpose is to
reduce the holding time
of the ignition key.
WIRING DIAGRAM
Refer to DTC P0617 (See page ...
Radiator
COMPONENTS
...
Linked mirror function when reversing (if equipped)
When the mirror select switch is in the L or R position, the outside rear
view mirrors will automatically angle downwards when the vehicle is
reversing in order to give a better view of the ground.
To disable this function, move the mirror select switch to the neutral
position (between L and R ...
