Toyota Sienna Service Manual: Terminals of ECU
1. CHECK TRANSPONDER KEY AMPLIFIER
- Disconnect the I14 amplifier connector and measure the resistance between the terminal of the wire harness side connector and body ground.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the I14 amplifier connector and measure the resistance and voltage of each terminal of the connector
If the result is not as specified, the amplifier may have a malfunction.
- Inspect using an oscilloscope.
- Waveform 1 (Reference):
- Waveform 2 (Reference):
2. CHECK TRANSPONDER KEY ECU ASSEMBLY
- Disconnect the T6 ECU connector and measure the resistance and voltage between each terminal of the wire harness side connector
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the T9 ECU connector and measure the voltage of each terminal of the connector.
If the result is not as specified, the ECU may have a malfunction.
- Inspect using an oscilloscope.
- Wave form 1 (Reference):
- Wave form 2 (Reference):
- Wave form 3 (Reference):
- Wave form 4 (Reference):
3. CHECK ECM
- Disconnect the E11 ECM connector and measure the resistance between the terminal of the wire harness side connector and body ground.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the E11 ECM. Measure the voltage between each terminal of the connector according to the value(s) in the table below.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Inspect using an oscilloscope.
- Waveform 1 (Reference):
- Waveform 2 (Reference):
Problem symptoms table
ENGINE IMMOBILISER SYSTEM
...
Diagnosis system
1. CHECK DLC3
The vehicle's ECU uses ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
...
Other materials:
Short to GND in Side Squib LH Circuit
DTC B0117/45 Short to GND in Side Squib LH Circuit
DESCRIPTION
The side squib LH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly LH.
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0117/45 is recorded when a s ...
Door LOCK Position Circuit
DESCRIPTION
This circuit detects the state of the door lock detection sensor and send it
to the Multiplex network body
ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the i ...
Concept, General information
Concept
Driver profiles can be created to store personal
vehicle settings. If the vehicle is used by multiple
drivers, each driver can create his personal driver
profile. When a driver profile is selected, the vehicle
will automatically apply the stored settings in
the driver profile.
General inform ...
