Toyota Sienna Service Manual: Engine coolant temperature sensor

Installation

1. INSTALL CRANKSHAFT POSITION SENSOR  Apply a light coat of engine oil to the O-ring on the crankshaft position sensor.  Install the crankshaft position sensor with the bolt. ...

Removal

1. DRAIN ENGINE COOLANT 2. REMOVE V-BANK COVER SUB-ASSEMBLY 3. REMOVE NO. 2 AIR CLEANER INLET 4. REMOVE NO. 1 AIR CLEANER INLET 5. REMOVE AIR CLEANER CAP SUB-ASSEMBLY 6. REMOVE AIR CLEANER CASE S ...

Other materials:

Terminals of ECU
1. INSTRUMENT PANEL JUNCTION BLOCK (MULTIPLEX NETWORK BODY ECU)  Disconnect the B6, B7 and B9 ECU connectors. Disconnect the 1A, 1C, 1K, 1L and 1P J/B connectors. Check the voltage or resistance according to the value(s) in the table below (wire harness side connector). ...

Check mode procedure
HINT: Intelligent tester only: Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode. NOTICE: All the stored DTCs and freeze frame data are erased if:  the ECM is changed from nor ...

Reassembly
1. INSTALL IGNITION OR STARTER SWITCH ASSEMBLY (a) Install the ignition or starter switch assembly to the steering column bracket assembly UPR with the 2 screws. 2. INSTALL KEY INTER LOCK SOLENOID (a) Install the solenoid to the steering column bracket assembly with the 2 screws. 3. INSTALL ...