{"id":9852,"date":"2022-03-10T20:30:51","date_gmt":"2022-03-10T20:30:51","guid":{"rendered":"https:\/\/www.hexorcism.com\/19BP\/sm2565405\/"},"modified":"2022-03-10T20:30:51","modified_gmt":"2022-03-10T20:30:51","slug":"sm2565405","status":"publish","type":"page","link":"https:\/\/www.hexorcism.com\/19BP\/sm2565405\/","title":{"rendered":"DSC HU\/CM [(US)]"},"content":{"rendered":"<div class=\"detailsTabContent\">\n<h3 class=\"c1\">DSC HU\/CM [(US)]<\/h3>\n<\/div>\n<p>SM2565405<\/p>\n<div class=\"node SERVICE_MANUALS\"><\/p>\n<div class=\"textleft\">\n<div class=\"attr CONTENT content c2\">\n<hr \/>\n<p class=\"servinfo-title-id\" align=\"right\">id0415001033x1<\/p>\n<p><br clear=\"all\" \/><br \/>\n<a name=\"id04150010330001\" id=\"id04150010330001\"><\/a><\/p>\n<p class=\"servinfosub-title\">Outline<\/p>\n<div class=\"list\">\u2022 A high reliability, reduced size and weight DSC HU\/CM, integrating both the DSC HU and the DSC CM, has been adopted.<\/p>\n<table class=\"figure-flame table-flame\">\n<tbody>\n<tr>\n<td width=\"10mm\"><\/td>\n<td>\n<table class=\"figure-float table-flame\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td align=\"center\"><img decoding=\"async\" src=\"..\/assets\/ac5wzn00000226.png\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"figure-caption\">ac5wzn00000226<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><br clear=\"all\" \/><br \/>\n<a name=\"id04150010330002\" id=\"id04150010330002\"><\/a><\/p>\n<p class=\"servinfosub-title\">DSC HU Part Purpose\/Function<\/p>\n<div class=\"list\">\u2022 According to DSC CM signals, the DSC HU controls (on\/off) each solenoid valve and the pump motor, adjusts fluid pressure in each caliper piston, and actuates each function (ABS, EBD, TCS, DSC, brake assist control, and Hill Launch Assist (HLA),vehicle roll prevention function) of the DSC system.<\/div>\n<p><br clear=\"all\" \/><br \/>\n<a name=\"id04150010330003\" id=\"id04150010330003\"><\/a><\/p>\n<p class=\"servinfosub-title\">DSC HU Part Construction<\/p>\n<div class=\"list\">\u2022 The DSC HU mainly consists of the inlet\/outlet solenoid valves, pump motor (pump), traction control solenoid valves, and stability control solenoid valves.<\/div>\n<p clear=\"all\">\n<p class=\"table-title\">Function of main component parts<\/p>\n<table class=\"table-flame\" border=\"1\">\n<thead>\n<tr>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">Part name<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">Function<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Inlet solenoid valve<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Adjusts the fluid pressure in each brake system according to DSC HU\/CM signals.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Outlet solenoid valve<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Adjusts the fluid pressure in each brake system according to DSC HU\/CM signals.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Stability control solenoid valve<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Switches the brake hydraulic circuits during and according to normal braking, ABS and EBD control, TCS control, DSC control, and brake assist control.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Traction control solenoid valve<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Switches the brake hydraulic circuits during and according to normal braking, ABS and EBD control, TCS control, DSC control, and brake assist control.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Reservoir<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Temporarily stores brake fluid from the caliper piston to ensure smooth pressure reduction during ABS and EBD control, TCS control, and DSC control.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Pump<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Returns the brake fluid stored in the reservoir to the master cylinder during ABS and DSC control.<\/div>\n<div class=\"list\">\u2022 Increases brake fluid pressure and sends brake fluid to each caliper piston during TCS control and DSC control.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Pump motor<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Operates the pump according to DSC HU\/CM signals.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"figure-flame-non table-flame\">\n<tbody>\n<tr>\n<td>\n<table class=\"figure-non-float table-flame\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td align=\"center\"><img decoding=\"async\" src=\"..\/assets\/ac5wzn00000227.png\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"figure-caption\">ac5wzn00000227<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><br clear=\"all\" \/><br \/>\n<a name=\"id04150010330004\" id=\"id04150010330004\"><\/a><\/p>\n<p class=\"servinfosub-title\">DSC HU Part Operation<\/p>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330005\" id=\"id04150010330005\"><\/a><\/p>\n<p class=\"topic-title\">During normal braking<\/p>\n<dl>\n<dd>\n<div class=\"list\">\u2022 During normal braking, the solenoid valves are not energized and all of them are off. When the brake pedal is depressed, brake fluid pressure is transmitted from the master cylinder, through the traction control solenoid and inlet solenoid valves, and then to the caliper piston.<\/div>\n<\/dd>\n<\/dl>\n<p clear=\"all\">\n<p class=\"table-title\">Solenoid valve operation table<\/p>\n<table class=\"table-flame\" border=\"1\">\n<thead>\n<tr>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Traction control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Stability control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Inlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Outlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" rowspan=\"2\">\n<p class=\"thead\">Pump motor, pump<\/p>\n<\/th>\n<\/tr>\n<tr>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Stopped<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"figure-title\">Hydraulic Circuit Diagram<\/p>\n<table class=\"figure-flame-non table-flame\">\n<tbody>\n<tr>\n<td>\n<table class=\"figure-non-float table-flame\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td align=\"center\"><img decoding=\"async\" src=\"..\/assets\/ac5wzn00001068.png\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"figure-caption\">ac5wzn00001068<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330006\" id=\"id04150010330006\"><\/a><\/p>\n<p class=\"topic-title\">During ABS and EBD control<\/p>\n<dl>\n<dd>\n<div class=\"list\">\u2022 During ABS and EBD control when wheel lock-up is about to occur, the traction control solenoid and stability control solenoid valves are not energized, and the inlet and outlet solenoid valves are energized and controlled in three pressure modes (increase, reduction or maintain), thereby adjusting brake fluid pressure. Brake fluid during pressure reduction is temporarily stored in the reservoir and afterwards the pump motor operates the pump to return the fluid to the master cylinder. (The following figure shows these conditions: right front wheel pressure increased, left front wheel pressure maintained, and both rear wheels pressure decreased.)<\/div>\n<\/dd>\n<\/dl>\n<p clear=\"all\">\n<p class=\"table-title\">Solenoid valve operation table<\/p>\n<table class=\"table-flame\" border=\"1\">\n<thead>\n<tr>\n<th id=\"\" align=\"center\" rowspan=\"2\">\n<p class=\"thead\">\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Traction control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Stability control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Inlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Outlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" rowspan=\"2\">\n<p class=\"thead\">Pump motor, pump<\/p>\n<\/th>\n<\/tr>\n<tr>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure increase mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Stopped<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure maintain mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">ON (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Stopped<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure reduction mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">ON (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">ON (open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Operating<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"figure-title\">Hydraulic Circuit Diagram<\/p>\n<table class=\"figure-flame-non table-flame\">\n<tbody>\n<tr>\n<td>\n<table class=\"figure-non-float table-flame\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td align=\"center\"><img decoding=\"async\" src=\"..\/assets\/ac5wzn00000943.png\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"figure-caption\">ac5wzn00000943<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330007\" id=\"id04150010330007\"><\/a><\/p>\n<p class=\"topic-title\">During DSC control (to suppress oversteer tendency) and TCS control<\/p>\n<dl>\n<dd>\n<div class=\"list\">\u2022 When a large oversteer tendency or driving wheel spin is determined, the traction control solenoid and stability control solenoid valves are energized, switching the hydraulic circuits. At the same time, the pump motor is actuated to operate the pump, thereby increasing pressure by supplying brake fluid pressure to the caliper piston of the outer front wheel or the slipping driving wheel. Also at this time, the inlet solenoid valve of the inner rear wheel is energized and the hydraulic circuit of this wheel is closed.<\/div>\n<div class=\"list\">\u2022 After a pressure increase, brake fluid pressure is adjusted using the three pressure modes (reduction, maintain, increase) so that the target wheel speed is obtained. (The following figure shows a left turn, or control of right front wheel spin (during pressure increase mode).)<\/div>\n<\/dd>\n<\/dl>\n<p clear=\"all\">\n<p class=\"table-title\">Solenoid valve operation table<\/p>\n<table class=\"table-flame\" border=\"1\">\n<thead>\n<tr>\n<th id=\"\" align=\"center\" rowspan=\"2\">\n<p class=\"thead\">\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Traction control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Stability control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Inlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Outlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" rowspan=\"2\">\n<p class=\"thead\">Pump motor, pump<\/p>\n<\/th>\n<\/tr>\n<tr>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure increase mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Operating<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure maintain mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Stopped<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure reduction mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Operating<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"figure-title\">Hydraulic Circuit Diagram<\/p>\n<table class=\"figure-flame-non table-flame\">\n<tbody>\n<tr>\n<td>\n<table class=\"figure-non-float table-flame\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td align=\"center\"><img decoding=\"async\" src=\"..\/assets\/ac5wzn00000230.png\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"figure-caption\">ac5wzn00000230<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330008\" id=\"id04150010330008\"><\/a><\/p>\n<p class=\"topic-title\">During DSC control (to suppress understeer tendency)<\/p>\n<dl>\n<dd>\n<div class=\"list\">\u2022 When a large understeer tendency is determined, the traction control solenoid and stability control solenoid valves are energized, switching the hydraulic circuits. At the same time, the pump motor is actuated to operate the pump, supplying brake fluid pressure from the reservoir to the inner rear caliper piston. Also at this time, the inlet solenoid valve of the outer front wheel is energized and the hydraulic circuit of this wheel is closed.<\/div>\n<div class=\"list\">\u2022 After a pressure increase, brake fluid pressure is adjusted using the three pressure modes (reduction, maintain, increase) so that the target wheel speed is obtained. (The following figure shows control during a left turn during pressure increase mode.)<\/div>\n<\/dd>\n<\/dl>\n<p clear=\"all\">\n<p class=\"table-title\">Solenoid valve operation table<\/p>\n<table class=\"table-flame\" border=\"1\">\n<thead>\n<tr>\n<th id=\"\" align=\"center\" rowspan=\"2\">\n<p class=\"thead\">\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Traction control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"2\">\n<p class=\"thead\">Stability control solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Inlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" colspan=\"4\">\n<p class=\"thead\">Outlet solenoid valve<\/p>\n<\/th>\n<th id=\"\" align=\"center\" rowspan=\"2\">\n<p class=\"thead\">Pump motor, pump<\/p>\n<\/th>\n<\/tr>\n<tr>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF\u2015RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF\u2015LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RF<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">LR<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">RR<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure increase mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Operating<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure maintain mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"4\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Stopped<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">During pressure reduction mode<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF (closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\" colspan=\"2\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">ON<\/div>\n<div class=\"tbody\">(open)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">OFF<\/div>\n<div class=\"tbody\">(closed)<\/div>\n<\/td>\n<td id=\"\" align=\"center\">\n<div class=\"tbody\">Operating<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"figure-title\">Hydraulic Circuit Diagram<\/p>\n<table class=\"figure-flame-non table-flame\">\n<tbody>\n<tr>\n<td>\n<table class=\"figure-non-float table-flame\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td align=\"center\"><img decoding=\"async\" src=\"..\/assets\/ac5wzn00000231.png\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"figure-caption\">ac5wzn00000231<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><br clear=\"all\" \/><br \/>\n<a name=\"id04150010330009\" id=\"id04150010330009\"><\/a><\/p>\n<p class=\"servinfosub-title\">DSC CM Part Function<\/p>\n<div class=\"list\">\u2022 The DSC CM makes calculations using signals input from each sensor, and outputs a brake fluid pressure control signal to the DSC HU to actuate DSC system functions. It also outputs an engine output control signal to the PCM.<\/div>\n<div class=\"list\">\u2022 The DSC HU\/CM controls the following functions:<\/div>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330010\" id=\"id04150010330010\"><\/a><\/p>\n<p class=\"topic-title\">Function table<\/p>\n<p clear=\"all\">\n<table class=\"table-flame\" border=\"1\">\n<thead>\n<tr>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">Function name<\/p>\n<\/th>\n<th id=\"\" align=\"center\">\n<p class=\"thead\">Contents<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">ABS control function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Controls brake fluid pressure when braking to maintain directional stability, ensure steerability, and reduce stopping distance.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Electronic brakeforce distribution (EBD) control function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Constantly controls proper distribution of brake fluid pressure to the front and rear wheels according to vehicle load, road surface, and vehicle speed conditions to prevent early lock-up of the rear wheels.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">TCS control function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Controls traction to within the road surface friction limit and according to road and driving conditions to improve starting and acceleration performance, and safety.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">DSC control function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Suppresses strong over-steer and under-steer tendencies when turning by controlling engine output and braking of each wheel to assure driving safety.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Brake assist control function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 The brake pedal depression speed and force is calculated from the brake fluid pressure sensor signal. If it exceeds the specification, an emergency braking situation is determined and a higher amount of hydraulic pressure than the normal specified amount is generated in the hydraulic unit and supplied to each wheel based on the activation of each solenoid valve, pump motor, and pump.<\/div>\n<div class=\"list\">\u2022 If a condition is detected in which emergency braking is anticipated by the change in speed of the accelerator pedal position, the gap between the brake pad and disc plate is reduced to enhance the response when braking.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Hill launch assist (HLA) control function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 For detailed information on the hill launch assist (HLA), refer to HILL LAUNCH ASSIST (HLA). (See <a href=\"SM2334034\">HILL LAUNCH ASSIST (HLA)<\/a>.)<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">CAN communication function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 Outputs the vehicle speed signal and DSC system warning control data via CAN lines.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">On-board diagnostic system<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 A function that allows important parts of the DSC control system to perform self-diagnosis. In case a malfunction occurs, the warning lights illuminate to alert the driver, and at the same time a DTC is stored in the DSC HU\/CM.<\/div>\n<div class=\"list\">\u2022 When a malfunction is determined as a result of the on-board diagnostic test, system control is suspended or limited to prevent any dangerous situation while driving.<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td id=\"\" align=\"left\">\n<div class=\"tbody\">Automatic configuration function<\/div>\n<\/td>\n<td id=\"\" align=\"left\">\n<div class=\"list\">\u2022 When the ignition is switched to ON or the engine is started after the DSC HU\/CM have been replaced, the DSC CM reads data from the instrument cluster via CAN communication to perform automatic configuration.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330011\" id=\"id04150010330011\"><\/a><\/p>\n<p class=\"topic-title\">Block diagram<\/p>\n<table class=\"figure-flame-non table-flame\">\n<tbody>\n<tr>\n<td>\n<table class=\"figure-non-float table-flame\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td align=\"center\"><img decoding=\"async\" src=\"..\/assets\/am3zzn00008810.png\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"figure-caption\">am3zzn00008810<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><br clear=\"all\" \/><br \/>\n<a name=\"id04150010330012\" id=\"id04150010330012\"><\/a><\/p>\n<p class=\"servinfosub-title\">Brake Fluid Pressure Sensor<\/p>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330013\" id=\"id04150010330013\"><\/a><\/p>\n<p class=\"topic-title\">Purpose\/function<\/p>\n<dl>\n<dd>\n<div class=\"list\">\u2022 The brake fluid pressure sensor detects the fluid pressure from the master cylinder and transmits it to the DSC HU\/CM.<\/div>\n<\/dd>\n<\/dl>\n<p><br clear=\"all\" \/><\/p>\n<p><a name=\"id04150010330014\" id=\"id04150010330014\"><\/a><\/p>\n<p class=\"topic-title\">Construction<\/p>\n<dl>\n<dd>\n<div class=\"list\">\u2022 The brake fluid pressure sensor is built into the DSC HU\/CM. Therefore if there is any malfunction of the brake fluid pressure sensor, replace the DSC HU\/CM.<\/div>\n<\/dd>\n<\/dl>\n<\/div>\n<div class=\"ATTACHMENTS\"><\/div>\n<div class=\"attr VTOC_FILENAME content c2\"><!--\n                        am3zz041500n0000085 --><\/div>\n<div class=\"attr SIE_ID content c2\"><!--\n                        id0415001033x1.ent --><\/div>\n<p><!--\n*****************************\nERROR: Schema not found. TYPE=META REFERENCEKEY=SERVICE_MANUALS ROOT=null\n*****************************\n--><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>DSC HU\/CM [(US)] SM2565405 id0415001033x1 Outline \u2022 A high reliability, reduced size and weight DSC HU\/CM, integrating both the DSC HU and the DSC CM, has been adopted. ac5wzn00000226 DSC HU Part Purpose\/Function \u2022 According to DSC CM signals, the DSC HU controls (on\/off) each solenoid valve and the pump motor, adjusts fluid pressure in each caliper piston, and actuates each function (ABS, EBD, TCS, DSC, brake assist control, and Hill Launch Assist (HLA),vehicle roll [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-9852","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/9852","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/comments?post=9852"}],"version-history":[{"count":0,"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/pages\/9852\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hexorcism.com\/19BP\/wp-json\/wp\/v2\/media?parent=9852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}