REPAIR INSTRUCTION PRECAUTION


  1. TO PREVENT FROM ENTERING FOREIGN SUBSTANCES.


    1. When foreign substances such as dust, grain of sand or metallic dust enter inside of engine, it often causes functional failure of the engine.


      1. Precaution before disassembly.


        • Remove adequately all sand and mud adhere to the outside of engine .

      2. Precaution at reassembly.


        • Protect disassembled parts from dust by using vinyl sheet to cover.

  2. TO PREVENT SCRATCHES ON THE PARTS.


    1. The existence of scratches on the contact and revolving surfaces often causes oil leak and seizure.


      1. Precautions at disassembly and reassembly.


        • When disassemble the contact surface of the parts, use plastic hammer striking lightly. (Do not pry out by screwdriver).

        • When fix the parts to the vise, do not directly catch it in the vise. Fix the parts through aluminum bar.

  3. TO CLEAN AND WASH THE PARTS.


    1. Each parts needs to be well cleaned, washed, and dried by air, and apply specified oil before reassembly.


      1. Cleaning and washing by alkaline solvent is prohibited:


        • Parts made of aluminum and rubber. (ex. cylinder head cover gasket etc.)

      2. Cleaning and washing by flushing oil (ex. kerosene, white gasoline etc.) is prohibited:


        • Parts made of rubber. (ex. cylinder head cover gasket etc.)

  4. POSITION AND DIRECTION OF EACH PARTS.


    1. Each parts needs to be reassembled as the same position and direction as it disassembled.


      1. Precautions at disassembly and reassembly.


        • Follow the directions when the manual designates to mark the matchmark and/or direction mark.

        • Disassembled parts needs to be put in order as disassembled, not to change position and/ or direction.

        • Follow the directions when the manual instructs the position and direction.

  5. INSTALL ENGINE ASSEMBLY TO OVERHAUL STAND WHEN OVERHAUL THE ENGINE.

  6. PUT THE DISASSEMBLED PARTS IN ORDER AS THEY DISASSEMBLED.

  7. APPLY ENGINE OIL TO THE SLIDING AND ROTATING SURFACES.

  8. NON-REUSABLE PARTS SUCH AS GASKET AND SEAL NEEDS TO BE CHANGED TO THE NEW PARTS.

  9. BASIC REPAIR HINT


    1. HINTS ON OPERATIONS

      A01KEZAE02
      1 Attire

      • Always wear a clean uniform.


      • Hat and safety shoes must be worn.
      2 Vehicle protection Prepare a grille cover, fender cover, seat cover and floor mat before starting the operation.
      3 Safe operation

      • When working with 2 or more persons, be sure to check safety for one another.


      • When working with the engine running, make sure to provide ventilation for exhaust fumes in the workshop.


      • If working on high temperature, high pressure, rotating, moving, or vibrating parts, wear appropriate safety equipment and take extra care not to injure yourself or others.


      • When jacking up the vehicle, be sure to support the specified location with a safety stand.


      • When lifting up the vehicle, use appropriate safety equipment.
      4 Preparation of tools and measuring gauge Before starting operation, prepare a tool stand, SST, gauge, oil and parts for replacement.
      5 Removal and installation, disassembly and assembly operations

      • Diagnose with a thorough understanding of proper procedures and of the reported problem.


      • Before removing the parts, check the general condition of the assembly and for deformation and damage.


      • When the assembly is complicated, take notes. For example, note the total number of electrical connections, bolts, or hoses removed. Add matchmarks to insure reassembly of components in the original positions. Temporarily mark hoses and their fittings if needed.


      • Clean and wash the removed parts if necessary and assemble them after a thorough check.
      6 Removed parts

      • Place the removed parts in a separate box to avoid mixing them up with the new parts or contaminating the new parts.


      • For non-reusable parts such as gaskets, O-rings, and self-locking nuts, replace them with new ones as instructed in this manual.


      • Retain the removed parts for customer inspection, if requested.

    2. JACKING UP AND SUPPORTING VEHICLE


      1. Care must be taken when jacking up and supporting the vehicle. Be sure to lift and support the vehicle at the proper locations.

    3. A01KF24E10
      Text in Illustration
      *a Seal Lock Adhesive

      PRECOATED PARTS


      1. Precoated parts are bolts and nuts that are coated with a seal lock adhesive at the factory.

      2. If a precoated part is retightened, loosened or moved in any way, it must be recoated with the specified adhesive.

      3. When reusing a precoated part, clean off the old adhesive and dry the part with compressed air. Then apply new seal lock adhesive appropriate to that part.

      4. Some seal lock agents harden slowly. You may have to wait for the seal lock adhesive to harden.

    4. GASKETS


      1. When necessary, use a sealer on gaskets to prevent leaks.

    5. BOLTS, NUTS AND SCREWS


      1. Carefully follow all the specifications for tightening torques. Always use a torque wrench.

    6. A01KHU7E04
      Text in Illustration
      *a INCORRECT
      *b CORRECT

      FUSES


      1. When inspecting a fuse, check that the wire of the fuse is not broken.

      2. 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.

        Illustration Symbol Part Name Abbreviation
        A01KF03 A01KHGG FUSE FUSE
        A01KGFH A01KICE MEDIUM CURRENT FUSE M-FUSE
        A01KEAT A01KG7D HIGH CURRENT FUSE H-FUSE
        A01KEYG A01KFRM FUSIBLE LINK FL
        A01KF3L A01KI9W CIRCUIT BREAKER CB

    7. CLIPS


      1. The removal and installation methods of typical clips used for vehicle body parts are shown in the table below.

        Tech Tips

        If clips are damaged during a procedure, always replace the damaged clip with a new clip.

        Shape (Example) Illustration Procedures
        A01KI5J A01KHZZ

        1. Remove clips with clip remover or pliers.
        A01KE9F A01KI5L

        1. Remove the clips with clip remover or screwdriver.
        A01KIBC A01KG6U

        1. Remove clips with wide scraper to prevent panel damage.
        A01KEJM A01KHD9

        1. Remove clips by pushing center pin through and prying out the shell.
        A01KGWB A01KF0X

        1. Remove clips by unscrewing the center pin and prying out the shell.
        A01KEC3 A01KH6W

        1. Remove clips by prying out the pin and then prying out the shell.

    8. CLAWS


      1. The removal and installation methods of typical claws used for vehicle body parts are shown in the table below.

        Tech Tips

        If claws are damaged during a procedure, always replace the damaged claws with new caps or covers.

        Shape (Example) Illustration Procedures
        A01KGQO A01KH12

        1. Using a screwdriver, detach the claws and remove the cap or covers.
        A01KFJL A01KEMU

        1. Using a screwdriver, detach the claws and remove the cap or covers.
        A01KFJD A01KGYL

        1. Using a screwdriver, detach the claws and remove the cap or covers.
    9. A01KEFYE04

      REMOVAL AND INSTALLATION OF VACUUM HOSES


      1. 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 cause damage.

        Text in Illustration
        *a INCORRECT
        *b CORRECT
      2. A01KI0JE02

        When disconnecting vacuum hoses, use tags to identify where they should be reconnected.

      3. After completing any hose related repairs, double check that the vacuum hoses are properly connected. The label under the hood shows the proper layout.

      4. When using a vacuum gauge, never force the hose onto a connector that is too large. If a hose has been stretched, it may leak air. Use a step-down adapter if necessary.

    10. A01KEFZE03

      TORQUE WHEN USING TORQUE WRENCH WITH EXTENSION TOOL


      1. A01KGYHE02

        Use the formula below to calculate special torque values for situations where SST or an extension tool is combined with the torque wrench.

        Note

        If an extension tool or SST is combined with a torque wrench and the wrench is used to tighten to a torque specification in this manual, the actual torque will be excessive and parts will be damaged.

      2. FOR VEHICLES EQUIPPED WITH SRS AIRBAG

        The TOYOTA DYNA 100, 150 is equipped with a Supplemental Restraint System (SRS).

        CAUTION:

        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 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.


        1. GENERAL NOTICE


          1. 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 the DTCs before disconnecting the battery.

          2. Work must be started at least 90 seconds after the engine 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 engine 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, clock and audio system memory is 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 system memory. The back-up power source may inadvertently power the SRS and cause it to deploy.

          3. In minor collisions where the SRS does not deploy, the steering pad and front passenger airbag assembly, should be inspected before further use of the vehicle.

          4. Never use SRS parts from another vehicle. When replacing parts, use new parts.

          5. Before repairs, remove the airbag sensor assemblies if impacts are likely to be applied to the sensor during repairs.

          6. Never disassemble and attempt to repair all airbag sensor assemblies, all airbag assemblies.


            1. Steering pad

            2. Front passenger airbag assembly

          7. 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.

          8. Do not directly expose the airbag sensor assembly or airbag assembly to hot air or flames.

          9. Use a voltmeter / ohmmeter with high impedance (minimum=10 kΩ) for troubleshooting electrical circuits.

          10. Information labels are attached to the SRS components. Follow the instructions on the labels.

          11. After work on the SRS is completed, check the SRS warning light.

        2. A01KGKME03
        3. Text in Illustration
        *a Mark

      SPIRAL CABLE


      1. The steering wheel must be fitted correctly to the steering column with the spiral cable at the neutral position, as cable disconnection and other problems may occur. Refer to the information about correct installation of the steering wheel.

    11. STEERING PAD


      1. Always place a removed or new steering pad surface upward as shown in the illustration. Placing the horn button with the pad surface facing down could cause a serious accident if the airbag inflates. Also, do not place anything on top of the horn button.

        A01KEPKE17
        Text in Illustration
        *a Example *b CORRECT
        *c INCORRECT - -

      2. Never measure the resistance of the airbag squib. This may cause the airbag to inflate, which could cause serious injury.

        A01KHGKE12
        Text in Illustration
        *a Example - -

      3. Grease or detergents of any kind should not be applied to the horn button.

      4. Store the horn button 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.

      5. When using electric welding anywhere on the vehicle, disconnect the airbag ECU connectors (4 pins). These connectors contain shorting springs. This feature reduces the possibility of the airbag deploying due to currents entering the squib wiring.

      6. When disposing of the vehicle or the horn button assembly by itself, the airbag should be deployed using SST before disposal. Activate the airbag in a safe place away from electrical noise.

    12. FRONT PASSENGER AIRBAG ASSEMBLY


      1. 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 inflation direction facing down could cause a serious accident if the airbag inflates.

        A01KIGFE16
        Text in Illustration
        *a Example *b CORRECT
        *c INCORRECT - -

      2. Never measure the resistance of the airbag squib. This may cause the airbag to inflate, which could cause serious injury.

        A01KFFXE10
        Text in Illustration
        *a Example - -

      3. Grease or detergents of any kind should not be applied to the front passenger airbag assembly.

      4. 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.

      5. When using electric welding anywhere on the vehicle, disconnect the airbag ECU connectors (4 pins). These connectors contain shorting springs. This feature reduces the possibility of the airbag deploying due to currents entering the squib wiring.

      6. When disposing of the vehicle or the airbag assembly unit by itself, the airbag should be deployed using SST before disposal. Activate in a safe place, away from electrical noise.

    13. AIRBAG SENSOR ASSEMBLY


      1. Never reuse an airbag sensor assembly that has been involved in a collision where the SRS has deployed.

      2. The connectors to the airbag sensor assembly should be connected or disconnected with the sensor placed on the floor. If the connectors are connected or disconnected while the airbag sensor assembly is not placed on the floor, the SRS may activate.

      3. Work must be started at least 90 seconds after the engine switch is turned off and the cable is disconnected from the negative (-) battery terminal, even if only loosening the set bolts of the airbag sensor assembly.

    14. WIRE HARNESS AND CONNECTOR


      1. The SRS wire harness is integrated with the instrument panel wire harness assembly. All the connectors in the system are a standard yellow color. If the SRS wire harness becomes disconnected or the connector becomes broken, repair or replace it.

  10. ELECTRONIC CONTROL

    A01KF36E15
    Text in Illustration
    *1 Negative (-) Cable
    *2 Negative (-) Battery Terminal

    1. REMOVAL AND INSTALLATION OF BATTERY TERMINAL

      Note

      Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.


      1. Before performing electronic work, disconnect the cable from the negative (-) battery terminal to prevent component and wire damage caused by accidental short circuits.

      2. When disconnecting the cable, turn the engine switch and headlight dimmer switch OFF and loosen the cable nut completely. Perform these operations without twisting or prying the cable. Then disconnect the cable.

      3. Clock settings, radio settings, audio system memory, DTCs and other data are erased when the cable is disconnected from the negative (-) battery terminal. Write down any necessary data before disconnecting the cable.

    2. A01KI4BE04
      Text in Illustration
      *a INCORRECT

      HANDLING OF ELECTRONIC PARTS


      1. 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.

      2. Do not pull the wires when disconnecting electronic connectors. Pull the connector itself.

      3. Be careful not to drop electronic components, such as sensors or relays. If they are dropped on a hard surface, they should be replaced.

      4. When cleaning the engine with steam, protect the electronic components, air filter and emission-related components from water.

      5. Never use an impact wrench to remove or install temperature switches or temperature sensors.

      6. When measuring the resistance of a wire connector, insert the tester probe carefully to prevent terminals from bending.

    3. INITIALIZATION OF STEPPER MOTOR TYPE ISC

      The TOYOTA DYNA 100, 150 uses a stepper motor type ISC. When replacing the throttle body or ECU, or reconnecting the battery negative (-) terminal, initialize the ISC using the following procedures:

      Tech Tips

      Perform the following without depressing the accelerator pedal.


      1. Turn the ignition switch ON (do not start the engine) and wait for 5 seconds.

      2. Turn the ignition switch OFF and wait for approximately 15 seconds.

      3. Turn the ignition switch ON and start the engine.

  11. REMOVAL AND INSTALLATION OF FUEL CONTROL PARTS


    1. 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.

      2. Never work in a pit or near a pit as vaporized fuel will collect in those places.

    2. REMOVING AND INSTALLING FUEL SYSTEM PARTS


      1. Prepare a fire extinguisher before starting the operation.

      2. To prevent static electricity, install a ground wire to the fuel changer, vehicle and fuel tank, 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.

      3. Avoid using electric motors, working 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.

  12. REMOVAL AND INSTALLATION OF ENGINE INTAKE PARTS

    A01KGOHE07

    1. If any metal particles enter inlet system parts, this may damage the engine.

    2. When removing and installing inlet system parts, cover the openings of the removed parts and engine openings. Use gummed tape or other suitable materials.

    3. When installing inlet system parts, check that no metal particles have entered the engine or the installed parts.

  13. HANDLING OF HOSE CLAMPS

    A01KEV6E09
    Text in Illustration
    *1 Spring Type Clamp
    *a Clamp Track

    1. Before removing the hose, check the clamp position so that it can be reinstalled in the same position.

    2. Replace any deformed or dented clamps with new ones.

    3. When reusing a hose, attach the clamp on the clamp track portion of the hose.

    4. For a spring type clamp, you may want to spread the tabs slightly after installation by pushing in the direction of the arrows as shown in the illustration.

  14. FOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS

    A01KFWHE02

    1. Install the antenna far away from the ECU and sensors of the vehicle electronic systems as possible.

    2. Install an antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the vehicle electronic systems. For details about ECU and sensors locations, refer to the section on the applicable components.

    3. Keep the antenna and feeder separate from other wirings as much as possible. This will prevent signals from the communication equipment from affecting vehicle equipment and vice-versa.

    4. Check that the antenna and feeder are correctly adjusted.

    5. Do not install any high-powered mobile communication system.

  15. FOR VEHICLES EQUIPPED WITH CATALYTIC CONVERTER

    CAUTION:

    If a large amount of unburned gasoline or gasoline vapors flow into the converter, it may cause overheating and create a fire hazard. To prevent this, observe the following precautions.


    1. Use only unleaded gasoline.

    2. Avoid idling the engine for more than 20 minutes.

    3. Avoid performing unnecessary spark jump tests.


      1. Perform a spark jump test only when absolutely necessary. Perform this test as rapidly as possible.

      2. While testing, never race the engine.

    4. Avoid a prolonged engine compression measurement. Engine compression measurements must be performed as rapidly as possible.

    5. 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.