EASY AND SMOOTH START SYSTEM PRECAUTION


  1. PRECAUTION FOR DISCONNECTING THE CABLE FROM THE NEGATIVE (-) BATTERY TERMINAL

    Note

    When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected:

    System See Procedure
    N04C-UH ECD System

    Click here

  2. TROUBLESHOOTING PRECAUTIONS


    1. When there is a malfunction with terminal contact points or part installation problems, removal and installation of the suspected 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 DTC output, and record them before disconnecting each connector or removing and installing parts.

    3. Since the system may be influenced by malfunctions in systems other than the ES start system, be sure to check for DTCs in other systems.

      Tech Tips


      • The ES start system is controlled by the skid control ECU.


      • If any DTCs for the ABS system are stored, repair the ABS system first.

  3. HANDLING PRECAUTIONS


    1. Be sure to perform preparation before work and confirmation after work is completed by following the directions in the repair manual when working on the ES start system.

    2. Be sure to remove and install the ECU, brake actuator and each sensor, etc. with the ignition switch off unless it is specified in the inspection procedure.

      Tech Tips

      The ES start system may be powered by the +B circuit after the ignition switch is turned off.

    3. Since the system must be turned off before performing any work, observe the following precautions:


      1. Wait for 10 seconds after turning the ignition switch off. Do not disconnect the connector immediately.

      2. If the ignition switch is turned off while the ES start system is still operating, the buzzer will sound for 30 seconds. Disconnect the connector 10 seconds after the buzzer stops sounding.

  4. DTC PRECAUTION


    1. Warnings for some DTCs will not be cleared by just replacing the defective parts. If a warning is still displayed after completing a repair, turn the ignition switch off before beginning the procedure for clearing DTCs.

      Note

      If a part is still malfunctioning even after the DTC is cleared, the DTC will be stored again.