Repair Instruction: Precaution
- BASIC REPAIR HINT
- HINTS ON OPERATIONS
- JACKING UP AND SUPPORTING VEHICLE
- Care must be taken when jacking up and supporting the vehicle. Be sure to lift and support the vehicle at the proper locations.
- PRECOATED PARTS
- Precoated parts are bolts and nuts that are coated with seal lock adhesive at the factory.
- If a precoated part is retightened, loosened or moved in any way, it must be re-coated with the specified adhesive.
- When reusing a precoated part, clean off the old adhesive and dry the part with compressed air. Then apply new seal lock adhesive appropriately to that part.
- Some seal lock agents harden slowly. You may have to wait for the seal lock adhesive to harden.
- GASKETS
- When necessary, use a sealer on gaskets to prevent leaks.
- BOLTS, NUTS AND SCREWS
- Carefully follow all the specifications for tightening torque. Always use a torque wrench.
- FUSES
- When inspecting a fuse, check that a wire of the fuse is not broken.
- When replacing fuses, be sure that the new fuse has the correct amperage rating. Do not exceed the rating or use one with a lower rating.
FUSE REFERENCE CHARTIllustration Symbol Part Name Abbreviation FUSE FUSE MEDIUM CURRENT FUSE M-FUSE HIGH CURRENT FUSE H-FUSE FUSIBLE LINK FL CIRCUIT BREAKER CB - CLIPS
- The removal and installation methods of typical clips used for vehicle body parts are shown in the following table.
HINT:
If clips are damaged during a procedure, always replace the damaged clips with new ones.
REMOVAL AND INSTALLATION METHODS OF TYPICAL CLIPSShape (Example) Removal/Installation Remove the clips with a clip remover or pliers. Remove the clips with a clip remover or screwdriver. Remove the clips with a wide scraper to prevent panel damage. Remove the clips by pushing the center pin through and prying out the shell. Remove the clips by unscrewing the center pin and prying out the shell. Remove the clips by prying out the pin and then prying out the shell. - The removal and installation methods of typical clips used for vehicle body parts are shown in the following table.
- CLAWS
- The removal and installation methods of typical claws used for vehicle body parts are shown in the table below.
HINT:
If claws are damaged during a procedure, always replace the cap or cover that has damaged claws with a new one.
REMOVAL AND INSTALLATION METHODS OF TYPICAL CLAWSShape (Example) Illustration Procedures Using a screwdriver, disengage the claws and remove the cap or cover. Using a screwdriver, disengage the claws and remove the cap or cover. Using a screwdriver, detach the claws and remove the cap or cover. - The removal and installation methods of typical claws used for vehicle body parts are shown in the table below.
- HINGES, GUIDES, CLAMPS, PINS, ETC.
- The removal and installation methods of typical hinges, guides, clamps and pins used for vehicle body parts are shown in the table below.
HINT:
If clamps are damaged during a procedure, always replace the cap or cover that has damaged clamps with a new one.
REMOVAL AND INSTALLATION METHODS OF TYPICAL HINGES, GUIDES, CLAMPS AND PINSShape (Example) Removal/Installation Pull away from the pins to disengage. Disengage the pins by pulling. Remove the clamps with pliers. Disengage the pins by pulling. - The removal and installation methods of typical hinges, guides, clamps and pins used for vehicle body parts are shown in the table below.
- REMOVAL AND INSTALLATION OF VACUUM HOSES
- To disconnect a vacuum hose, pull and twist from the end of the hose. Do not pull from the middle of the hose as this may damage the hose.
- When disconnecting vacuum hoses, use tags to identify where they should be reconnected.
- After completing any hose related repairs, double check that the vacuum hoses are properly connected. The label under the hood shows the proper layout.
- When using a vacuum gauge, never force the hose onto a connector that is too large. If a hose has been stretched, air may leak. Use a step-down adapter if necessary.
- TORQUE WHEN USING TORQUE WRENCH WITH EXTENSION TOOL
- Use the formula below to calculate special torque values for situations where SST or an extension tool is combined with a torque wrench.
Formula
T1 = (L2/(L1 + L2)) * T
SPECIAL TORQUE VALUES CALCULATION REFERENCE CHARTT' Reading of torque wrench {N*m (kgf*cm, ft.*lbf)} T Torque {N*m (kgf*cm, ft.*lbf)} L1 Length of SST or extension tool {cm (in.)} L2 Length of torque wrench {cm (in.)} NOTE: If an extension tool or SST is combined with a torque wrench and used to tighten to a torque specification in these articles, the actual torque will be excessive and parts will be damaged. - Use the formula below to calculate special torque values for situations where SST or an extension tool is combined with a torque wrench.
- FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND SEAT BELT PRETENSIONER
This vehicle is equipped with a Supplemental Restraint System (SRS).
CAUTION:- Before performing pre-disposal deployment of any SRS component, review and closely follow all applicable environmental and hazardous material regulations. Pre-disposal deployment may be considered hazardous material treatment.
- Failure to carry out the service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing and lead to serious injury. Furthermore, if a mistake is made when servicing the SRS, it is possible that the SRS may fail to operate properly. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the following section carefully.
- GENERAL NOTICE
- As malfunctions of the SRS are difficult to confirm, the Diagnostic Trouble Codes (DTCs) become the most important source of information when troubleshooting. When troubleshooting the SRS, always check for DTCs before disconnecting the battery.
- Work must be started at least 90 seconds after the ignition switch is turned off and after the cable is disconnected from the negative (-) battery terminal.
The SRS is equipped with a back-up power source. If work is started within 90 seconds after turning the ignition switch off and disconnecting the cable from the negative (-) battery terminal, the SRS may deploy.
When the cable is disconnected from the negative (-) battery terminal, the clock and audio system memory will be erased. Before starting work, make a note of the settings of each memory system. When work is finished, reset the clock and audio system as before.
CAUTION: Never use a back-up power source (battery or other) to avoid erasing the system memory. The back-up power source may inadvertently power the SRS and cause it to deploy. - If the vehicle has been involved in a minor collision where the SRS does not deploy, the steering pad, front passenger airbag assembly, front seat side airbag assembly, curtain shield airbag assembly and front seat outer belt assembly should be inspected before further use of the vehicle.
- Never use SRS parts from another vehicle. When replacing parts, use new parts.
- Before repairs, remove the airbag sensor assemblies if impacts are likely to be applied to the sensor during repairs.
- Never disassemble and attempt to repair any airbag sensor assemblies or airbag assemblies.
- Steering pad
- Front passenger airbag assembly
- Front seat side airbag assembly
- Curtain shield airbag assembly
- Front seat outer belt assembly
- Replace the airbag sensor assemblies and the airbag assemblies if: 1) damage has occurred from being dropped, or 2) cracks, dents or other defects in the case, bracket or connector are present.
- Do not directly expose the airbag sensor assemblies or airbag assemblies to hot air or flames.
- Use a voltmeter/ohmmeter with high impedance (minimum = 10 kΩ) for troubleshooting electrical circuits.
- Information labels are attached to the SRS components. Follow the instructions on the labels.
- After work on the SRS is completed, check the SRS warning light.
- SPIRAL CABLE
- The steering wheel must be fitted correctly to the steering column with the spiral cable at the neutral position, as otherwise cable disconnection and other problems may occur. Refer to the information about correct installation of the steering wheel (See INSTALLATION ).
- STEERING PAD
- Always place a removed or new steering pad surface upward as shown in the illustration. Placing the steering pad with the pad surface facing down could cause a serious accident if the airbag deploys. Also, do not place anything on top of the steering pad.
- Never measure the resistance of the airbag squib. This may cause the airbag to deploy, which could cause serious injury.
- Grease or detergents of any kind should not be applied to the steering pad.
- Store the steering pad in an area where the ambient temperature is below 93°C (200°F), the humidity is not high and there is no electrical noise.
- Before using an electric welder anywhere on the vehicle, disconnect the center airbag sensor assembly connectors. These connectors contain shorting springs. This feature reduces the possibility of the airbag deploying due to current entering the squib wiring.
- When disposing of the vehicle or the steering pad by itself, the airbag should be deployed using SST before disposal (See DISPOSAL ). Deploy the airbag in a safe place away from electrical noise.
- FRONT PASSENGER AIRBAG ASSEMBLY
- Always place a removed or new front passenger airbag assembly with the pad surface facing upward as shown in the illustration. Placing the airbag assembly with the airbag deployment direction facing downward could cause a serious accident if the airbag deploys.
- Never measure the resistance of the airbag squib. This may cause the airbag to deploy, which could cause serious injury.
- Grease or detergents of any kind should not be applied to the front passenger airbag assembly.
- Store the airbag assembly in an area where the ambient temperature is below 93°C (200°F), the humidity is not high and there is no electrical noise.
- Before using an electric welder anywhere on the vehicle, disconnect the center airbag sensor assembly connectors. These connectors contain shorting springs. This feature reduces the possibility of the airbag deploying due to current entering the squib wiring.
- When disposing of the vehicle or the airbag assembly unit by itself, the airbag should be deployed using SST before disposal (See DISPOSAL ). Deploy the airbag in a safe place away from electrical noise.
- FRONT SEAT SIDE AIRBAG ASSEMBLY
- Always place a removed or new front seat side airbag assembly with the airbag deployment direction facing upward.
- Never measure the resistance of the airbag squib. This may cause the airbag to deploy, which could cause serious injury.
- Grease or detergents of any kind should not be applied to the front seat side airbag assembly.
- Store the airbag assembly in an area where the ambient temperature is below 93°C (200°F), the humidity is not high and there is no electrical noise.
- Before using an electric welder anywhere on the vehicle, disconnect the center airbag sensor assembly connectors. These connectors contain shorting springs. This feature reduces the possibility of the airbag deploying due to current entering the squib wiring.
- When disposing of a vehicle or the airbag assembly unit by itself, the airbag should be deployed using SST before disposal (See FRONT SEAT SIDE AIRBAG ASSEMBLY ). Deploy the airbag in a safe place away from electrical noise.
- CURTAIN SHIELD AIRBAG ASSEMBLY
- Always place a removed or new curtain shield airbag assembly in a clear plastic bag, and keep it in a safe place.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CAUTION: The plastic bag should be disposed of after use.NOTE: Never disassemble the curtain shield airbag assembly. - Never measure the resistance of the airbag squib. This may cause the airbag to deploy, which could cause serious injury.
- Grease or detergents of any kind should not be applied to the curtain shield airbag assembly.
- Store the airbag assembly in an area where the ambient temperature is below 93°C (200°F), the humidity is not high and there is no electrical noise.
- Before using an electric welder anywhere on the vehicle, disconnect the center airbag sensor assembly connectors. These connectors contain shorting springs. This feature reduces the possibility of the airbag deploying due to current entering the squib wiring.
- When disposing of a vehicle or the airbag assembly unit by itself, the airbag should be deployed using SST before disposal (See DISPOSAL ). Deploy the airbag in a safe place away from electrical noise.
- Always place a removed or new curtain shield airbag assembly in a clear plastic bag, and keep it in a safe place.
- FRONT SEAT OUTER BELT ASSEMBLY (SEAT BELT PRETENSIONER)
- Never measure the resistance of the front seat outer belt assembly. This may cause the pretensioner of the front seat outer belt assembly to activate, which could cause serious injury.
- Never disassemble the front seat outer belt assembly.
- Never install the front seat outer belt assembly on another vehicle.
- Store the front seat outer belt assembly in an area where the ambient temperature is below 80°C (176°F), the humidity is not high and there is no electrical noise.
- Before using an electric welder anywhere on the vehicle, disconnect the center airbag sensor assembly connectors. These connectors contain shorting springs. This feature reduces the possibility of the airbag deploying due to current entering the squib wiring.
- When disposing of a vehicle or the front seat outer belt assembly unit by itself, the front seat outer belt assembly should be activated before disposal (See DISPOSAL ). Activate the front seat outer belt assembly in a safe place away from electrical noise.
- As the front seat outer belt assembly is hot after being activated, allow some time for it to cool down sufficiently before disposal. Never apply water to cool down the front seat outer belt assembly.
- Grease, detergents, oil or water should not be applied to the front seat outer belt assembly.
- CENTER AIRBAG SENSOR ASSEMBLY
- Never reuse a center airbag sensor assembly that has been involved in a collision where the SRS has deployed.
- The connectors to the center airbag sensor assembly should be connected or disconnected with the sensor installed to the vehicle. If the connectors are connected or disconnected while the center airbag sensor assembly is not installed, the SRS may activate.
- Work must be started at least 90 seconds after the ignition switch is turned off and the cable is disconnected from the negative (-) battery terminal, even if only loosening the bolts of the center airbag sensor assembly.
- WIRE HARNESS AND CONNECTOR
- All the connectors in the system are a standard yellow color. If an SRS wire harness has an open circuit or a connector is broken, replace it.
- ELECTRONIC CONTROL
- REMOVAL AND INSTALLATION OF BATTERY TERMINALNOTE: Certain systems need to be initialized after reconnecting the cable to the negative (-) battery terminal.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Before performing electrical work, disconnect the cable from the negative (-) battery terminal to prevent component and wire damage caused by accidental snort circuits.
- When disconnecting the cable, turn the ignition switch and headlight switch off and loosen the cable nut completely. Perform these operations without twisting or prying the cable. Then disconnect the cable.
- Clock settings, radio settings, audio system memory, DTCs and other data will be erased when the cable is disconnected from the negative (-) battery terminal. Write down any necessary data before disconnecting the cable.
- HANDLING OF ELECTRONIC PARTS
- Do not open the cover or case of the ECU unless absolutely necessary. If the IC terminals are touched, the IC may be rendered inoperative by static electricity.
- Do not pull on the wires when disconnecting electronic connectors. Pull on the connector itself.
- Do not drop electronic components, such as sensors or relays. If they are dropped on a hard surface, they should be replaced.
- When cleaning the engine with steam, protect the electronic components, air filter and emission-related components from water.
- Never use an impact wrench to remove or install temperature switches or temperature sensors.
- When measuring the resistance between terminals of a wire connector, insert the tester probe carefully to prevent terminals from bending.
- REMOVAL AND INSTALLATION OF BATTERY TERMINAL
- REMOVAL AND INSTALLATION OF FUEL CONTROL PARTS
- PLACE FOR REMOVING AND INSTALLING FUEL SYSTEM PARTS
- Work in a location with good air ventilation that does not have welders, grinders, drills, electric motors, stoves, or any other ignition sources nearby.
- Never work in a pit or near a pit as fuel vapors will collect there.
- REMOVING AND INSTALLING FUEL SYSTEM PARTS
- Prepare a fire extinguisher before starting work.
- 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 work 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.
- Avoid using electric motors, work lights and other electric equipments that can cause sparks or high temperatures.
- Avoid using iron hammers as they may create sparks.
- Dispose of fuel-contaminated cloth separately using a fire resistant container.
- PLACE FOR REMOVING AND INSTALLING FUEL SYSTEM PARTS
- REMOVAL AND INSTALLATION OF ENGINE INTAKE PARTS
- If any metal particles enter intake system parts, this may damage the engine.
- When removing and installing intake system parts, cover the openings of the removed parts and engine openings. Use adhesive tape or other suitable materials.
- When installing intake system parts, check that no metal particles have entered the engine or installed parts.
- HANDLING OF HOSE CLAMPS
- Before removing a hose, check the clamp position so that it can be reinstalled in the same position.
- Replace any deformed or dented clamps with new ones.
- When reusing a hose, attach the clamp on the clamp track portion of the hose.
- For a spring type clamp, it may be necessary to spread the tabs slightly after installation by pushing in the direction of the arrows as shown in the illustration.
- FOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS
- Install the antenna as far away from the ECU and sensors of the vehicle electronic systems as possible.
- 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 service information for the applicable components.
- 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.
- Check that the antenna and feeder are correctly adjusted.
- Do not install a high-powered mobile communication system.
- WHEN SERVICING ACTIVE TORQUE CONTROL 4WD VEHICLES
- WHEN USING A CHASSIS DYNAMOMETER
- This vehicle can be tested using a 4-wheel drive type chassis dynamometer (synchronized roller speed for front and rear axles).
NOTE:- A chassis dynamometer that only applies load to two wheels cannot be used.
- 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.
- Do not remove the propeller shaft.
- WHEN USING A SPEEDOMETER TESTERNOTE:
- 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.
- Place the front wheels onto the rollers.
- Disable the VSC/TRAC.
- Place the rear wheels on free rollers or use safety stands to allow the rear wheels to rotate freely.
- Secure the vehicle with suitable chains or straps.
- Start the engine, and then measure the vehicle speed while increasing the speed gradually with the shift lever in D.
- After the test is finished, decrease the speed gradually, and then stop the vehicle.
- WHEN USING A BRAKE TESTERNOTE:
- 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.
- Place the wheels to be tested (front or rear) onto the rollers.
- Move the shift lever to N.
- Start the engine to allow normal brake booster operation.
- Operate the brakes to perform the test.
- WHEN USING AN ON-VEHICLE BALANCER
- Raise the vehicle until all 4 wheels are off the ground.
- 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.
- Place the vibration pick-up unit into position for the wheel to be measured *1.
- Release the parking brake.
- Check that no dragging force exists when turning each wheel by hand.
- Put the wheel balancer in position.
- 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.
NOTE:- 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.
- WHEN USING A CHASSIS DYNAMOMETER
- FOR VEHICLES EQUIPPED WITH TRACTION CONTROL (TRAC) 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 TRAC and VSC systems.
HINT:
- The vehicle may slip unexpectedly out of the dynamometer because of TRAC and VSC operations.
- Pressing the VSC OFF switch (for vehicles with a VSC OFF switch) does not disable TRAC and VSC operation completely.
NOTE:- Make sure that the VSC warning light is blinking.
- Secure the vehicle with chains for safety.
- Activating inspection mode (Not using the Techstream)
HINT:
- Perform steps "D" to "H" within 30 seconds.
- Perform steps "F" and "G" within 15 seconds each.
- Ensure that the ignition switch is off and the engine is stopped. (Step "A")
- Make sure that the shift lever is in P. (Step "B")
- Start the engine. (Step "C")
- Apply the parking brake by pulling the parking brake lever. (Step "D")
- Depress and release the brake pedal twice. (Step "E")
- While holding the brake pedal down, release and apply the parking brake twice. (Step "F")
- With the parking brake applied, depress and release the brake pedal twice. (Step "G")
- Check if the SLIP indicator light comes on. (Step "H")
HINT:
- If the SLIP indicator light does not come on in step "H", repeat the steps from "A" to "H".
- Turning the ignition switch off ends inspection mode.
- Activating inspection mode (Using the Techstream)
- Ensure that the ignition switch is off and the engine is stopped. (Step "A")
- Make sure that the shift lever is in P. (Step "B")
- Connect the Techstream to the DLC3. (Step "C")
- Start the engine. (Step "D")
- Turn the Techstream main switch on. (Step "E")
- Enter the following menus: Chassis / ABS/VSC/ TRAC / Utility / Inspection Mode. (Step "F")
- Check if the SLIP indicator light comes on. (Step "G")
HINT:
- If the SLIP indicator light does not come on in step "G", repeat the steps from "A" to "G".
- Turning the ignition switch off ends inspection mode.
- WHEN TOWING ACTIVE TORQUE CONTROL 4WD VEHICLES
- Use one of the following methods to tow the vehicle.
- If the vehicle has trouble with the chassis or drive train, use method 1 (flat bed truck).
NOTE: Do not use any towing method other than those shown above.
- The following towing methods shown below are dangerous and can damage the vehicle, so do not use them.
- 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:
- Use only unleaded gasoline.
- Avoid idling the engine for more than 20 minutes.
- Avoid performing unnecessary spark tests.
- Perform a spark test only when absolutely necessary. Perform this test as rapidly as possible.
- While testing, never race the engine unless instructed.
- Avoid a prolonged engine compression measurement. Engine compression measurements must be performed as rapidly as possible.
- 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.
- INSPECTION AND ADJUSTMENT OF JOINT ANGLE DURING REMOVAL AND INSTALLATION OF PROPELLER SHAFT (4WD)
- When performing operations which involve the removal and installation of the propeller shaft, always check the joint angle. Make adjustments if necessary (See INSTALLATION ).