Toyota RAV4 Service Manual: Cooling fan system
Parts location
System diagram
On-vehicle inspection
Hint:
It is normal for the cooling fan to sometimes rotate when the ignition switch is turned from acc to on.
- Check cooling fan operation at low temperatures (below 94°c (201°f))
- Turn the ignition switch on with the a/c switch off.
- Check that the cooling fan stops.
If it does not, check the cooling fan relays and engine coolant temperature sensor, and then check for disconnection of the connector or a wire break between the cooling fan relay and engine coolant temperature sensor.
- Disconnect the engine coolant temperature sensor connector.
- Check that the cooling fan rotates.
If it does not, check the fuses, cooling fan relays, ecm and cooling fan, and then check for an open circuit between the cooling fan relay and engine coolant temperature sensor.
- Reconnect the engine coolant temperature sensor connector.
- Check cooling fan operation at high temperatures (above 96°c (205°f))
- Start the engine, and then raise the coolant temperature to above 96°c (205°f).
Hint:
Coolant temperature is the value detected by the engine coolant temperature sensor on the cylinder head.
- Check that the a/c switch is off.
- Check that the cooling fan rotates.
If it does not, check the engine coolant temperature sensor, cooling fan, harness or connector.
Cooling system
On-vehicle inspection
Check cooling system for leaks
Remove the radiator reservoir cap.
Caution:
To avoid the danger of being burned, do not
remove the radiator reservoir cap while the
...
Coolant
Replacement
Remove no. 1 Engine under cover
Drain engine coolant
Loosen the radiator drain cock plug.
Hint:
Collect the coolant in a container and dispose of it
according to the regul ...
Other materials:
Installation
Install throttle body
Install a new gasket onto the intake manifold.
Install the throttle body and fuel pipe clamp with the
4 bolts.
Torque: 30 n*m (305 kgf*cm, 22 ft.*Lbf)
Connect the fuel tube into the clamp.
Connect the wire harness clamp.
Connect the throttle posi ...
Seat position airbag sensor circuit malfunction
Description
The seat position sensor circuit consists of the center airbag sensor and the
seat position sensor.
Dtc b1653/35 is recorded when a malfunction is detected in the seat position
sensor circuit.
Wiring diagram
Inspection procedure
Check for dtc
Turn the ...
Mass air flow circuit range / performance problem
Description
Refer to dtc p0100 (see page es-86).
Monitor description
The maf meter is a sensor that measures the amount of air flowing through the
throttle valve. The ecm
uses this information to determine the fuel injection time and to provide an
appropriate air-fuel ratio. Inside
...