Toyota Sienna Service Manual: Terminals of ECU
1. CHECK POWER SLIDE DOOR ECU LH (WITH POWER SLIDE DOOR)
- Disconnect the P25 and P26 ECU connectors, and check the voltage and resistance of each terminal of the wire harness side connectors.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the ECU connectors, and check the voltage of each terminal of the connectors.
If the result is not as specified, the ECU may have a malfunction.
2. CHECK POWER SLIDE DOOR ECU RH
- Disconnect the P27 and P28 ECU connectors, and check the voltage and resistance of each terminal of the wire harness side connectors.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the ECU connectors, and check the voltage of each terminal of the connectors.
If the result is not as specified, the ECU may have a malfunction.
3. CHECK SLIDE DOOR CLOSER RELAY LH (WITHOUT POWER SLIDE DOOR)
- Disconnect the S37 relay connector, and check the voltage and resistance of each terminal of the wire harness side connectors.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the relay connector, and check the voltage of each terminal of the connectors.
If the result is not as specified, the relay may have a malfunction.
Problem symptoms table
SLIDE DOOR CLOSER SYSTEM
Symptom
Suspected Area
Slide door closer LH does not operate (*1)
ECU-B fuse
Power slide door lock assembly LH
Power slide do ...
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.
NOT ...
Other materials:
Sound Signal Circuit between Radio and Navigation Assembly and
Stereo Jack Adapter
DESCRIPTION
The stereo jack adapter sends an external device sound signal to the radio
and navigation assembly
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 c ...
Handling of hose clamps
HANDLING OF HOSE CLAMPS
(a) Before removing the hose, check the clamp position
so that it can be reinstalled in the same position.
(b) Replace any deformed or dented clamps with new
ones.
(c) When reusing a hose, attach the clamp on the
clamp track portion of the hose.
(d) For a s ...
Disassembly
1. Remove oil filler cap sub-assembly
(A) remove the oil filler cap sub-assembly and oil filler
gasket.
2. REMOVE SPARK PLUG
(a) Remove the spark plugs.
3. REMOVE OIL PAN DRAIN PLUG
(a) Remove the oil pan drain plug and oil pan drain plug
gasket.
4. REMOVE VENTILATION VALVE SUB-ASSEMBLY
...
