TRANSFER SYSTEM PRECAUTION


  1. IGNITION SWITCH EXPRESSION

    Tech Tips

    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.

    Expression Ignition Switch (position) Engine Switch (condition)
    Ignition Switch off Off Off
    Ignition Switch ON ON On (IG)
    Ignition Switch ACC ACC On (ACC)
    Engine Start START Start

  2. PRECAUTION


    1. Before disassembling the transfer assembly, thoroughly clean it to remove any foreign matter. This will help prevent contamination during disassembly and reassembly.

    2. When removing the transfer cover or any other light alloy parts, do not pry them off with a screwdriver or other tool that may cause damage. Instead, tap the parts with a plastic-faced hammer.

    3. Always arrange removed parts in the order they were removed and protect them from foreign matter.

    4. Before installation of each part, thoroughly clean and dry it. Then apply transfer oil to it. Do not use alkaline chemicals to clean aluminum parts, rubber parts or ring gear set bolts. Also, do not use non-residue solvent or other cleaning oils to clean O-rings, oil seals or rubber parts.

    5. Coat sliding surfaces and rotating parts with hypoid gear oil.

    6. Do not fix a part directly in a vise. Place aluminum plates between the part and vise.

    7. Replace any damaged or deformed snap rings with new ones.

    8. Do not allow the case mating surfaces to be scratched. Scratches may lead to oil leakage.

    9. Using a razor blade and gasket scraper, remove old FIPG from the sealing surface.

    10. Clean all parts to remove excess FIPG completely.

    11. Clean the sealing surface with solvent so that no residue remains on the sealing surface.

    12. Apply FIPG in a continuous line of approximately 1.2 mm (0.0472 in.) in diameter along the sealing surface.

    13. Be sure to assemble parts within 10 minutes of FIPG application. Otherwise, the FIPG must be removed and reapplied.

    14. After sealing parts, do not allow oil to come into contact with the seal for at least 1 hour.

    15. Do not allow scratches on surfaces which contact oil seals or gaskets. Scratches may lead to oil leakage.

    16. When press-fitting an oil seal, be careful not to damage the lip of the oil seal or its periphery.

  3. TROUBLESHOOTING PRECAUTION


    1. When there is a malfunction in the contact point of the terminals or installation problems with parts, removal and installation of the suspected problem parts may return the system to the normal condition either completely or temporarily.

    2. In order to determine the malfunctioning area, be sure to check the conditions at the time the malfunction occurred, such as by DTC output, and record them before disconnecting each connector or removing and installing parts.

    3. Since the transfer system may be influenced by a malfunction in other systems, be sure to check for DTCs in the other systems.

  4. CAN COMMUNICATION SYSTEM PRECAUTION


    1. The CAN communication system is used for data communication between each of the ECUs and sensors. If there is trouble in the CAN communication line, a CAN communication line DTC is output.

    2. If a CAN communication line DTC is output, repair the malfunction in the communication line and troubleshoot the transfer system.

    3. Since the CAN communication line has its own length and route, it cannot be repaired temporarily with a bypass wire, etc.