Toyota Tundra 2005 Service - Repair - Maintenance page 2009

Ohmmeter
30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
−20 0 20
(−4) (32) (68)
S01196 Temperature °C (°F)
S01699
SFI (2UZ−FE)
B02308
Acceptable
40 60 80 100
(104) (140) (176) (212)
Z17274
− ENGINE COOLANT TEMPERATURE (ECT) SENSOR
INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE THROTTLE BODY COVER
3. REMOVE INTAKE AIR CONNECTOR
4. DISCONNECT THROTTLE BODY FROM INTAKE MAN-
IFOLDS
Remove the nut and 3 bolts, and disconnect the throttle body
from the intake manifold.
5. REMOVE ECT SENSOR
(a) Disconnect the ECT sensor connector.
(b) Remove the ECT sensor and gasket.
6. INSPECT ECT SENSOR
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance: Refer to the graph
If the resistance is not as specified, replace the ECT sensor.
7. REINSTALL ECT SENSOR
(a) Install a new gasket and the ECT sensor.
Torque: 19.6 N·m (200 kgf·cm, 14 ft·lbf)
(b) Connect the ECT sensor connector.
8. REINSTALL THROTTLE BODY TO INTAKE MAN-
IFOLDS
Install a new gasket and the throttle body with the 2 bolts and
2 nuts.
Torque: 20 N·m (204 kgf·cm, 15 ft·lbf)
9. REINSTALL INTAKE AIR CONNECTOR
10. REFILL WITH ENGINE COOLANT (See page CO−2)
11. REINSTALL THROTTLE BODY COVER
SF−67
SF0PO−20