Page 2801 of 4323
SF1XT±01
B07643
Continuity
2 1 Ohmmeter
Ohmmeter
3
No Continuity5
B07644
2 1
Ohmmeter
3 4
Battery
Continuity
± SFIFUEL PUMP RELAY
SF±59
2793 Author: Date:
2005 SEQUOIA (RM1146U)
FUEL PUMP RELAY
INSPECTION
1. REMOVE RELAY BOX COVER
2. REMOVE FUEL PUMP RELAY (Marking: F/P)
3. INSPECT FUEL PUMP RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 2.
If there is no continuity, replace the relay.
(b) Check that there is continuity between terminals 3 and 4.
If there is no continuity, replace the relay.
4. INSPECT FUEL PUMP RELAY OPERATION
(a) Apply battery positive voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is no continuity be-
tween terminals 3 and 4.
If there is continuity, replace the relay.
5. REINSTALL FUEL PUMP RELAY
6. REINSTALL RELAY BOX COVER
Page 2802 of 4323
SF138±05
B17500
Fuel Pump Resistor
8.0 (82, 71 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque
SF±60
± SFIFUEL PUMP RESISTOR
2794 Author: Date:
2005 SEQUOIA (RM1146U)
FUEL PUMP RESISTOR
COMPONENTS
Page 2803 of 4323
SF139±05
B17501
Ohmmeter
± SFIFUEL PUMP RESISTOR
SF±61
2795 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. REMOVE FUEL PUMP RESISTOR
2. INSPECT FUEL PUMP RESISTOR
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance: 0.70 to 0.76 W at 20°C (68°F)
If the resistance is not as specified, replace the resistor.
3. REINSTALL FUEL PUMP RESISTOR
Torque: 8.0 N´m (82 kgf´cm,71 in.´lbf)
Page 2804 of 4323
SF0Y7±10
B17502
VSV for EVAP
EVAP HoseEVAP Hose
N´m (kgf´cm, ft´lbf) : Specified torque
18 (184, 13)
SF±62
± SFIVSV FOR EVAPORATIVE EMISSION (EVAP)
2796 Author: Date:
2005 SEQUOIA (RM1146U)
VSV FOR EVAPORATIVE EMISSION (EVAP)
COMPONENTS
Page 2805 of 4323
B16402
Ohmmeter
Continuity
SF0PJ±10
B16403
Ohmmeter
No Continuity
B16404
Air
B16405Battery Air
± SFIVSV FOR EVAPORATIVE EMISSION (EVAP)
SF±63
2797 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. REMOVE VSV
2. INSPECT VSV
(a) Inspect the VSV for open circuit.
Using an ohmmeter, check that there is continuity be-
tween the terminals.
Resistance: 30 to 34 W at 20°C (68°F)
If there is no continuity, replace the VSV.
(b) Inspect the VSV for ground.
Using an ohmmeter, check that there is no continuity be-
tween each terminal and the body.
If there is continuity, replace the VSV.
(c) Inspect the VSV operation.
(1) Check that air dose not flow from port.
(2) Apply battery positive voltage across the terminals.
(3) Check that air flows from port.
If operation is not as specified, replace the VSV.
3. REINSTALL VSV
Page 2806 of 4323
SF0PN±14
B17471
PS Air Hose
PCV Hose
Intake Air Connector
GasketECT Sensor
Connector
ECT Sensor
N´m (kgf´cm, ft´lbf) : Specified torque
Non±reusable part
Vacuum HoseThrottle Body Cover
MAF Meter Wire
Suction Hose
20 (204, 15)
SF±64
± SFIENGINE COOLANT TEMPERATURE (ECT) SENSOR
2798 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
COMPONENTS
Page 2807 of 4323

SF0PO±19
B02308
S01196S01699Z17274
Ohmmeter
Resistance kW
Temperature °C (°F) Acceptable 30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
40 ±20 0 20 60 80 100
(212) (176) (140) (104) (68) (32) (±4)
± SFIENGINE COOLANT TEMPERATURE (ECT) SENSOR
SF±65
2799 Author: Date:
2005 SEQUOIA (RM1146U)
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
Page 2808 of 4323
SF0PR±17
B17459
Throttle Body Cover
PS Air Hose
Intake Air Connector
Suction Hose
MAF Meter Wire
PCV Hose
Vacuum Hose
SF±66
± SFIKNOCK SENSOR
2800 Author: Date:
2005 SEQUOIA (RM1146U)
KNOCK SENSOR
COMPONENTS