Part 1
INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION
1. BASIC REPAIR HINT
(a) HINTS ON OPERATIONS
CAUTION:
*:Be sure to perform these checks properly, not performing these checks properly after finishing work can lead to serious accident or injury.
(b) 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.
(c) 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.
(d) GASKETS
(1) When necessary, use a sealer on gaskets to prevent leaks.
(e) BOLTS, NUTS AND SCREWS
(1) Carefully follow all the specifications for tightening torques. Always use a torque wrench.
(f) FUSES
(1) When inspecting a fuse, check that the wire of the fuse is not broken.
(2) If the wire of a fuse is broken, confirm that there are no shorts in its circuit.
(3) When a fuse is replaced, a fuse with the same amperage rating must be used.
(g) CLIPS
(1) The removal and installation methods of typical clips used for vehicle body parts are shown in the table below.
HINT
If clips are damaged during a procedure, always replace the clips with new clips.
(h) CLAWS
(1) The removal and installation methods of typical claws used for vehicle body parts are shown in the table below.
HINT
If claws of caps or covers are damaged during a procedure, always replace the caps or covers with new ones.
(i) HINGE, GUIDE, CLAMP, PIN ETC.
(1) 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.
(j) 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.
(2) 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.
(k) TORQUE WHEN USING TORQUE WRENCH WITH EXTENSION TOOL
(1) Use the formula below to calculate special torque values for situations where SST or an extension tool is combined with a torque wrench.
Formula:
T' = L2 / (L1 + L2) * T
NOTICE:
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 WITH SUPPLEMENTAL RESTRAINT SYSTEM
The LAND CRUISER is equipped with a Supplemental Restraint System (SRS). The SRS of this vehicle consists of the following:
* Steering pad
* Front passenger airbag assembly
* Curtain shield airbag assembly
* Front seat side airbag assembly
* Knee airbag assembly
* Center airbag sensor assembly
* Front airbag sensor
* Side airbag sensor
* Seat position airbag sensor
* Occupant classification ECU
* Front seat outer belt assembly with pretensioner
CAUTION:
* Failure to carry out service procedures in the correct sequence could cause SRS parts to unexpectedly deploy and possibly lead to serious injuries. Furthermore, if a mistake is made when servicing SRS parts, they may fail to operate when required. Before performing servicing (including installation/removal, inspection and replacement of parts), be sure to read the following precautions.
* Before starting work, wait at least 90 seconds after the engine switch is turned off and after the cable is disconnected from the negative (-) battery terminal. (SRS parts are equipped with a backup power source. If work is started within 90 seconds of turning the engine switch off and disconnecting the cable from the negative (-) battery terminal, SRS parts may deploy).
* Do not expose SRS parts directly to hot air or flames.
NOTICE:
* Malfunction symptoms of SRS parts are difficult to confirm. DTCs are the most important source of information when troubleshooting. During troubleshooting, always confirm DTCs before disconnecting the cable from the negative (-) battery terminal.
* For minor collisions where SRS parts do not deploy, always inspect the SRS parts.
* Before performing repairs, remove airbag sensors as necessary if any kind of impact is likely to occur to an airbag sensor during repairs.
* Never use SRS parts from another vehicle. When replacing SRS parts, replace them with new ones.
* Never disassemble or attempt to repair SRS parts.
* If an SRS part has been dropped, or if there are any cracks, dents or other defects in the case, bracket or connector, replace the SRS part with a new one.
* Use an ohmmeter/voltmeter with high impedance (10 kOhms/V minimum) for troubleshooting the electrical circuits.
* Information labels are attached to the periphery of SRS parts. Follow the cautions and instructions on the labels.
* After work on SRS parts is completed, perform the SRS warning light check.
* When the cable is disconnected from the negative (-) battery terminal, the memory settings of each system will be cleared. Because of this, be sure to write down the settings of each system before starting work. When work is finished, reset the settings of each system as before. Never use a backup power supply from outside the vehicle to avoid erasing the memory in a system.
* An airbag or pretensioner may be activated by static electricity. To prevent this, be sure to touch a metal surface with bare hands to discharge static electricity before performing this procedure.
(a) 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.