Toyota Sienna Service Manual: Engine coolant temperature sensor
COMPONENTS
REMOVAL
1. DRAIN ENGINE COOLANT (See page CO-6) 2. REMOVE V-BANK COVER SUB-ASSEMBLY (See page EM-28) 3. REMOVE NO. 2 AIR CLEANER INLET (See page EM- 28) 4. REMOVE NO. 1 AIR CLEANER INLET (See page EM- 28) 5. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See page ES-493) 6. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See page EM-28) 7. REMOVE ENGINE COOLANT TEMPERATURE SENSOR
(a) Remove the engine coolant temperature sensor connector.
(b) Remove the engine coolant temperature sensor.
INSPECTION
1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
(a) Using an ohmmeter, measure the resistance between the terminals.
Standard resistance 
- If the result is as specified, do not replace the engine coolant temperature sensor
- If the result is not as specified, replace the engine coolant temperature sensor.
| NOTICE: In case of checking the engine coolant temperature sensor in water, do not allow water to go into the terminals. After checking, dry the engine coolant temperature sensor. |
INSTALLATION
1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR
(a) Install the engine coolant temperature sensor.
Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf) (b) Connect the engine coolant temperature sensor connector.
2. INSTALL AIR CLEANER CASE SUB-ASSEMBLY (See page EM-59) 3. INSTALL AIR CLEANER CAP SUB-ASSEMBLY (See page ES-496) 4. INSTALL NO. 1 AIR CLEANER INLET (See page EM- 59) 5. INSTALL NO. 2 AIR CLEANER INLET (See page EM- 60) 6. ADD ENGINE COOLANT (See page CO-7) 7. INSPECT FOR ENGINE COOLANT LEAK (See page CO-1) 8. INSTALL V-BANK COVER SUB-ASSEMBLY (See page EM-63)
Crankshaft position sensor
Components
Removal
1. Remove compressor and magnetic clutch
HINT:
(See page AC-227 )
2. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the crankshaft position sensor
connector.
(b) R ...
Knock sensor
COMPONENTS
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE
(See page FU-13)
2. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE WINDSHIE ...
Other materials:
Headlight dimmer switch
COMPONENTS
REMOVAL
1. REMOVE STEERING COLUMN LOWER COVER
2. REMOVE STEERING COLUMN UPPER COVER
3. REMOVE HEADLIGHT DIMMER SWITCH ASSEMBLY
Disconnect the connector.
Release the claw fitting and remove the headlight
dimmer switch assembly.
INSPECTION
1. HEADLIGHT DI ...
Installation
1. INSTALL IGNITION SWITCH ASSEMBLY
(a) Install the ignition switch with the 2 screws.
(b) Install the ignition switch connector.
2. INSTALL STEERING COLUMN COVER LOWER
(a) Attach the 4 claws to install the steering column
cover lower.
(b) Insert the key into the ignition key cylinde ...
Problem symptoms table
If there are no DTCs output but the problem still occurs,
check the circuits for each problem symptom in the order
given in the table below and proceed to the relevant
troubleshooting page.
NOTICE:
When replacing the brake actuator assembly, sensor,
etc., turn the ignition switch off.
HINT:
...
