Fundamental Procedures

Disconnection of the Negative Battery Cable
Before beginning any work, turn the ignition switch to LOCK position, then disconnect the negative battery cable and wait for more than 1 minute to allow the backup power supply of the SAS control module to deplete its stored power. Disconnecting the battery cable will delete the memories of the clock, audio, and DTCs, etc. Therefore, it is necessary to verify those memories before disconnecting the cable.




Removal of Parts
While correcting a problem, also try to determine its cause. Begin work only after first learning which parts and subassemblies must be removed and disassembled for replacement or repair. after removing the part, plug all holes and ports to prevent foreign material from entering.




Disassembly
If the disassembly procedure is complex, requiring many parts to be disassembled, all arts should be marked in a place that will not affect their performance or external appearance an identified so that reassembly can be perform d easily and efficiently.




Inspection During Removal, Disassembly
When removed, each part should be careful inspected for malfunction, deformation, damage, and other problems.





Arrangement of Parts
- All disassembled parts should be careful arranged for reassembly.
- Be sure to separate or otherwise identify the parts to be replaced from those that will be reused.




Cleaning of Parts
All parts to be reused should be carefully and thoroughly cleaned in the appropriate method.

WARNING: Using compressed air can cause dirt and other particles to fly out causing injury to the eyes. Wear protective eye wear whenever using compressed air.

Reassembly




- Standard values, such as torques and certain adjustments, must be strictly observed in the reassembly of all parts.

- If removed, these parts should be replaced with new ones:
- Oil seals
- Gaskets
- O-rings
- Lock washers
- Cotter pins
- Nylon nuts




- Depending on location:
- Sealant and gaskets, or both, should be applied to specified locations. When sealant is applied, parts should be installed before sealant hardens to prevent leakage
- Oil should be applied to the moving components of parts.
- Specified oil or grease should be applied at the prescribed locations (such as oil seals) before reassembly.




Adjustment
Use suitable gauges and/or testers when making adjustments.




Rubber Parts and Tubing
Prevent gasoline or oil from getting on rubber pans or tubing.




Hose Clamps
When reinstalling, position the hose clamp in the original location on the hose and squeeze the clamp lightly with large pliers to ensure a good fit.







Torque Formulas
When using a torque wrench-SST or equivalent combination, the written torque must be recalculated due to the extra length that the SST. or equivalent adds to the torque wrench. Recalculate the torque using the given formulas. Choose the formula that applies to you.




Vise
When using a vise, put protective plates in the jaws of the vise to prevent damage to pans.

Dynamometer
- When test-running a vehicle on a dynamometer:
- Place a fan, preferably a vehicle-speed proportional type, in front of the vehicle.
- Connect an exhaust gas ventilation unit.
- Cool the exhaust pipes with a fan.
- Keep the area around the vehicle uncluttered.
- Watch the water temperature gauge.

NOTE: When the vehicle is on a chassis roller and only the front wheels rotate, the ABS warning light may illuminate. (Refer to PRECAUTION (BRAKES) to turn off the warning light.)