Toyota Sienna Service Manual: Terminals of ECU
1. CHECK POWER BACK DOOR ECU
- Disconnect the P13 and P14 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.
Initialization
1. RESET
When the battery is reconnected:
The back door is locked and therefore cannot be
opened. Therefore, it is necessary to unlock the
back door using the door control switch or
...
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:
Reassembly
1. INSTALL FRONT DRIVE SHAFT BEARING
(a) Using SST and a press, install a new front drive
shaft bearing.
SST 09710-30021 (09710-03141), 09527-10011
NOTICE:
Bearing should be completely installed.
2. INSTALL FRONT DRIVE SHAFT RH HOLE SNAP RING
(a) Using a snap ring expander, install a ...
Low pitched horn
COMPONENTS
REMOVAL
1. REMOVE FRONT BUMPER COVER
ET-3
2. REMOVE LOW PITCHED HORN
Disconnect the connector.
Remove the bolt and horn.
INSPECTION
1. INSPECT LOW PITCHED HORN
Apply battery voltage and check operation of the
horn, as shown in the table.
Stan ...
Precaution
1. INITIALIZATION
NOTICE:
Perform RESET MEMORY (AT initialization) when
replacing the automatic transaxle assembly, engine
assembly or ECM.
Perform REGISTRATION (VIN registration) when
replacing the ECM.
HINT:
Initialization cannot be completed by only removing the
batt ...
