Toyota Highlander Service Manual: Inspection
1. INSPECT RELAY (Marking: FAN NO. 1, FAN NO. 3)
(a) Measure the resistance of the relay.
Standard:
If the result is not as specified, replace the relay.
2. INSPECT RELAY (Making: FAN NO. 2)
(a) Measure the resistance of the relay.
Standard:
If the result is not as specified, replace the relay.
3. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
(a) Measure the resistance between terminals 1 and 2.
Standard:
If the result is not as specified, replace the sensor.
NOTICE: When checking the ECT sensor in the water, the terminals should be kept dry. After the check, dry the sensor.
On-vehicle inspection
HINT:
The cooling fan may rotate when the ignition switch is turned from ACC to ON.
This is normal.
1. CHECK COOLING FAN OPERATION WITH LOW TEMPERATURE (Below 83 C (181 F))
(a) Turn the ignition ...
Coolant (2AZ-FE)
REPLACEMENT
1. DRAIN ENGINE COOLANT
(a) Remove the radiator cap.
CAUTION:
Do not remove the radiator cap while the engine and radiator are still hot.
Pressurized, hot engine
coolant and steam m ...
More about Toyota Highlander:
Exhaust pipe ASSY (3MZ-FE)
COMPONENTS
REPLACEMENT
NOTICE:
Check if an old gasket remains on the pipe. If remains, remove it. Check if any
bolts or nuts are rusted.
If rusted, replace them.
1. REMOVE HEATED OXYGEN SENSOR
(a) Remove the 2 heated oxygen sensors (bank 1, 2 sensor
2).
2. REMOVE EXHAUST PIPE ASSY ...
