SSANGYONG REXTON 2006.09 Manual page 403

17-4
4892-01
(2) Electronic system service precautions
Take care to avoid electronic brake control module (HECU) circuit overloading. In testing for
opens or shorts, do not ground or apply voltage to any circuit unless instructed to do so by the
diagnostic procedure. Test circuits only with a high-impedance multi-meter. Never remove or
apply power to any control module with the ignition switch in the ON position. Always turn the
ignition to the OFF position before removing or connecting battery cables, fuses or connectors.
(3) General service precautions
Disconnect the HECU connector before performing any vehicle welding work using an electric
arc welder. Do not attempt to disassemble any component designated as nonserviceable. The
hydraulic modulator and the HECU cannot be separated from each other. They have no
replaceable parts, and there is no replaceable parts, and there is no access to the components
they contain.
(4) Bleeding system
Replacement modulators are shipped already filled and bled. In normal procedures requiring
removal of the modulator, such as to replace the HECU, air will not enter the modulator, and
normal bleeding will be all that is needed. If air enters the hydraulic modulator, or if an unfilled
modulator is installed, use the brake bleeding program in the scan tool to bleed the modulator.
Manual bleeding of the hydraulic modulator is not possible.
ANTI-BRAKE SYSTEM
REXTON 2006.09