Part 2
INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION (Continued..)
4. FOR COOLING FAN SYSTEM
NOTICE:
* When the ignition switch is turned off and the engine temperature is high, the cooling fans may operate for a maximum of 6 minutes.
* After turning the ignition switch off, keep hands and objects away from the fans when they are operating.
HINT
* If all of the following are met for a certain period of time during a few minutes immediately before the engine is stopped, the electric fans will continue to operate for the maximum of 6 minutes after the engine is stopped. This is performed to ensure restartability and stabilize idle speed.
* The Techstream indicates a very high coolant temperature.
* The Techstream indicates a high outside air temperature.
* The vehicle has been driven under high load (driving on an uphill or equivalent).
5. REMOVAL AND INSTALLATION OF FUEL CONTROL PARTS
(a) PLACE FOR REMOVING AND INSTALLING FUEL SYSTEM PARTS
(1) Work in a location with good air ventilation that does not have welders, grinders, drills, electric motors, stoves, or any other ignition sources nearby.
(2) Never work in a pit or near a pit as fuel vapors will collect there.
(b) REMOVING AND INSTALLING FUEL SYSTEM PARTS
(1) Prepare a fire extinguisher before starting work.
(2) To prevent static electricity, install a ground wire to the fuel changer and vehicle, and do not spray the surrounding area with water. Be careful when performing work in this area, as the floor surface will become slippery. Do not clean up gasoline spills with water, as this may cause the gasoline to spread, and possibly create a fire hazard.
(3) Avoid using electric motors, work lights and other electric equipment that can cause sparks or high temperatures.
(4) Avoid using iron hammers as they may create sparks.
(5) Dispose of fuel-contaminated cloth separately using a fire resistant container.
6. REMOVAL AND INSTALLATION OF ENGINE INTAKE PARTS
(a) If any metal particles enter intake system parts, this may damage the engine.
(b) When removing and installing intake system parts, cover the openings of the removed parts and engine openings. Use adhesive tape or other suitable materials.
(c) When installing intake system parts, check that no metal particles have entered the engine or installed parts.
7. HANDLING OF HOSE CLAMPS
Text in Illustration
(a) Before removing a hose, check the clamp position so that it can be reinstalled in the same position.
(b) Replace any deformed or dented clamps with new ones.
(c) When reusing a hose, attach the clamp on the clamp track portion of the hose.
(d) For a spring type clamp, it may be necessary to spread the tabs slightly after installation by pushing them in the direction of the arrows as shown in the illustration.
8. FOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS
(a) Install an antenna as far away from the ECU and sensors of the vehicle electronic systems as possible.
(b) Install an antenna and feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the vehicle electronic systems. For details about ECU and sensor locations, refer to the section on the applicable components.
(c) Keep the antenna and feeder separate from other wiring as much as possible. This will prevent signals sent from the communication equipment from affecting vehicle equipment and vice versa.
(d) Check that the antenna and feeder are correctly adjusted.
(e) Do not install a high-powered mobile communication system.
9. HEADLIGHT INSPECTION OR MAINTENANCE
(a) When the headlight dimmer switch assembly is set to HEAD, do not touch the discharge headlight's high-voltage socket area.
NOTICE:
When performing inspection or maintenance, the discharge headlight precautions must be followed.
(b) When the headlights are illuminated, do not cover the headlights for 3 minutes or more.
Text in Illustration
NOTICE:
As the headlight's outer lens is made of resin, the resulting heat created when the headlight is covered for an extended period of time may deform the headlight.
10. FOR VEHICLES EQUIPPED WITH TRACTION CONTROL (TRC) AND VEHICLE STABILITY CONTROL (VSC) SYSTEMS
When testing with a 2-wheel drum tester such as a speedometer tester, a combination speedometer and brake tester, or a chassis dynamometer, or when jacking up the front wheels and turning the wheels, perform the following procedure to enter inspection mode and disable the TRC and VSC systems Service Precautions.
HINT
* The vehicle may slip unexpectedly out of the dynamometer because of TRC and VSC operations.
* Pressing the VSC OFF switch (for vehicles with a VSC OFF switch) does not disable TRC and VSC operation completely.
NOTICE:
* Make sure that the VSC warning light is blinking.
* Secure the vehicle with chains for safety.
11. WHEN SERVICING ACTIVE TORQUE CONTROL 4WD VEHICLES
NOTICE:
In the case of using speedometer tester, brake tester, or chassis dynamometer and so on, there is some possibility of a speed differential between the front and rear wheels. Therefore, please switch "4WD test mode" before doing tests or remove the fuse before doing tests and delete diagnostic code "C1298"after the tests.
(a) WHEN USING A SPEEDOMETER TESTER
NOTICE:
* Inspection should be done using the front wheels.
* Do not brake or accelerate suddenly.
* Maximum vehicle speed must be less than 60 km/h (37 mph) (when using free rollers to support the rear wheels, vehicle speed must be less than 50 km/h (31 mph)).
* Driving time should be less than 1 minute.
* Follow all usage and safety procedures in the operator's manual for the speedometer tester.
(1) Place the front wheels onto the rollers.
(2) Enter inspection mode to disable TRC and VSC control.
(3) Place the rear wheels on free rollers or use safety stands to allow the rear wheels to rotate freely.
(4) Secure the vehicle with suitable chains or straps.
(5) Start the engine, and then measure the vehicle speed while increasing the speed gradually with the shift lever in D.
(6) After the test is finished, decrease the speed gradually, and then stop the vehicle.
(b) WHEN USING A BRAKE TESTER
NOTICE:
* A high-speed type brake tester cannot be used.
* Vehicle speed should be less than 0.5 km/h (0.3 mph).
* Follow all usage and safety procedures in the operator's manual for the brake tester.
(1) Place the wheels to be tested (front or rear) onto the rollers.
(2) Move the shift lever to N.
(3) Start the engine to allow normal brake booster operation.
(4) Operate the brakes to perform the test.
(c) WHEN USING A CHASSIS DYNAMOMETER
(1) Enter inspection mode to disable TRC and VSC control.
(2) Follow the instructions shown in the illustration.
NOTICE:
* Do not brake or accelerate suddenly.
* Confirm that the vehicle is securely immobilized.
* Follow all usage and safety procedures in the operator's manual for the chassis dynamometer.
* Be sure to follow the instructions specified in the illustration. Failure to do so may cause deterioration of 4WD system function, malfunction of drivetrain components and risk of the vehicle jumping off of the dynamometer.
(d) WHEN USING AN ON-VEHICLE BALANCER
(1) Raise the vehicle until all 4 wheels are off the ground.
(2) Support the vehicle with safety stands at an appropriate height. Make sure that vehicle does not lean in any direction, and that the tires are completely clear of the floor.
(3) Place the vibration pick-up unit into position for the wheel to be measured*1.
(4) Release the parking brake.
(5) Check that no dragging force exists when turning each wheel by hand.
(6) Put the wheel balancer in position.
(7) Wheel balance measurement should be done by using both the engine and the wheel balancer drive roller to spin the wheels.
HINT
*1: Different on-vehicle wheel balancers have different requirements for mounting the vibration pick-up unit(s). Refer to the operator's manual for the wheel balancer to confirm requirements for use.
NOTICE:
* Start the engine and then increase the vehicle speed gradually with the shift lever in D.
* Do not accelerate or decelerate suddenly.
* Deceleration should be done by braking gradually.
* Make sure that no one is standing in-line with the spinning wheels.
* Measurement should be done quickly.
* Confirm that the vehicle is securely immobilized.
* Follow all usage and safety procedures in the operator's manual for the wheel balancer.
12. WHEN TOWING ACTIVE TORQUE CONTROL 4WD VEHICLES
(a) Use one of the following methods to tow the vehicle.
(b) If the vehicle has trouble with the chassis or drive train, use method 1 (flat bed truck).
NOTICE:
Do not use any towing method other than those shown above.
(c) The following towing methods shown below are dangerous and can damage the vehicle, so do not use them.
(1) Do not tow the vehicle with only two wheels on the ground.
(2) Do not use a sling-type towing method either from the front or rear.
NOTICE:
If these towing methods are used either from the front or rear, the following may occur.
* The drive train may overheat and be damaged and the wheels may come off the dolly.
* In addition, if the vehicle is equipped with the VSC system, the system will apply the brakes to the rotating wheels.
13. FOR VEHICLES EQUIPPED WITH CATALYTIC CONVERTER
CAUTION:
If a large amount of unburned gasoline or gasoline vapors flow into the converter, it may cause converter overheating and create a fire hazard. To prevent this, observe the following precautions:
(a) Use only unleaded gasoline.
(b) Avoid idling the engine for more than 20 minutes.
(c) Avoid performing unnecessary spark tests.
(1) Perform a spark test only when absolutely necessary. Perform this test as rapidly as possible.
(2) While testing, never race the engine unless instructed.
(d) Avoid a prolonged engine compression measurement. Engine compression measurements must be performed as rapidly as possible.
(e) Do not run the engine when the fuel tank is nearly empty. This may cause the engine to misfire and create an extra load on the converter.
14. INSPECTION AND ADJUSTMENT OF JOINT ANGLE DURING REMOVAL AND INSTALLATION OF PROPELLER SHAFT (4WD)
(a) When performing operations which involve the removal and installation of the propeller shaft, always check the joint angle. Make adjustments if necessary .
Text in Illustration
15. EXPRESSIONS OF IGNITION SWITCH
(a) The type of ignition switch used on this model differs according to the specifications of the vehicle.
The expressions listed in the table below are used in this section.
