Contents Section: Anti-Lock/traction Control All sections

Dynamic Stability Control: Removal & Installation Mazda RX-8 I рестайлинг

Anti-Lock/traction Control 13 illustrations ~768 words

DSC HU/CM REMOVAL/INSTALLATION

CAUTIONWhen replacing the DSC HU/CM, the configuration procedure must be done before removing the DSC HU/CM. If the configuration is not completed before removing the DSC HU/CM, DSC will not work properly after installation of the DSC HU/CM. The DSC may not function normally when the DSC HU/CM is replaced. After installation, always perform the initialization procedures for the combined sensor and the steering angle sensor. The internal parts of the DSC HU/CM could be damaged if dropped. Be careful not to drop the DSC HU/CM. Replace the DSC HU/CM if it is subjected to an impact.
  1. Remove the engine cover. (See «ENGINE COVER REMOVAL/INSTALLATION [13B-MSP]»(ref-367623-S37771794152010072700000) .)
  2. Remove the front suspension tower bar. (See «FRONT SUSPENSION TOWER BAR REMOVAL/INSTALLATION [MT]»(ref-367617-S15466659542010072700000) .) (See «FRONT SUSPENSION TOWER BAR REMOVAL/INSTALLATION [AT]»(ref-367650-S42099286512010072700000) .)
  3. Remove in the order indicated in the figure below.
  4. Install in the reverse order of removal.
  5. Configure the DSC HU/CM. (See «DSC CONFIGURATION»(ref-367629-S26478250912010072700000) .)
  6. After installation, perform the combined sensor initialization procedure. (See «COMBINED SENSOR INITIALIZATION PROCEDURE»(ref-367629-S22524300342010072700000) .)
  7. After installation, perform the steering angle sensor initialization procedure. (See «STEERING ANGLE SENSOR INITIALIZATION PROCEDURE»(ref-367629-S28414488552010072700000) .)

Scheme 19

Scheme 19

DSC HU/CM Connector Removal Note

  1. Pull the lock lever up in the direction of the arrow.
  2. Pull the connector toward the vehicle rear and remove it.

Scheme 20

Scheme 20

Brake Pipe Removal Note

  1. Place an alignment mark on the brake pipe and DSC HU/CM.
  2. Apply protective tape to the connector to prevent brake fluid from entering.
  3. Remove the brake pipe.

Scheme 21

Scheme 21

Brake Pipe Installation Note

  1. Align the marks made before removal and install the brake pipe to the DSC HU/CM and brake pipe joint referring to the figure below.
  2. Tighten the brake pipe to the specified torque using the commercially available flare nut wrench.

Scheme 22

Scheme 22

DSC HU/CM Connector Installation Note

  1. After connecting the connector, verify that the lock lever is completely pushed in.

Scheme 23

Scheme 23

FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION

  1. Slightly bend back the front mudguard. (See «FRONT MUDGUARD REMOVAL/INSTALLATION»(ref-367654-S39876391292010072700000) .)
  2. Remove in the order indicated in the figure below.
  3. Install in the reverse order of removal.

Scheme 24

Scheme 24

REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION

  1. Remove the trunk side trim. (See «TRUNK SIDE TRIM REMOVAL/INSTALLATION»(ref-367662-S24296380552010072700000) .)
  2. Remove in the order indicated in the figure below.
  3. Install in the reverse order of removal.

Scheme 25

Scheme 25

COMBINED SENSOR REMOVAL/INSTALLATION

CAUTIONThe internal parts of the combined sensor could be damaged if dropped. Be careful not to drop the combined sensor. Replace the combined sensor if it is subjected to an impact. Also, do not use an impact wrench or other similar air tools when removing/installing the sensor.

Scheme 26

Scheme 26
  1. Remove the rear console. (See «CONSOLE REMOVAL/INSTALLATION»(ref-367662-S08997723562010072700000) .)
  2. Remove in the order indicated in the figure below.
  3. Install in the reverse order of removal.
  4. After installation, perform the combined sensor initialization procedure. (See «COMBINED SENSOR INITIALIZATION PROCEDURE»(ref-367629-S22524300342010072700000) .)

Scheme 27

Scheme 27

Scheme 28

Scheme 28
  1. Turn the ignition switch off.
  2. Connect the M-MDS to the DLC-2.
  3. Select the following PIDs, then inspect the lateral acceleration speed and the yaw rate. LAT_ACCL: (lateral acceleration speed) YAW_RATE: (yaw rate) Lateral acceleration speed inspection Verify the LAT_ACCL change when the combined sensor is tilted to the left and right. If there is any malfunction, replace the combined sensor. Standard When the sensor is tilted to the right: LAT_ACCL changes negatively. When the sensor is tilted to the left: LAT_ACCL changes positively. Yaw rate inspection Verify the YAW_RATE change when the combined sensor is rotated to the left and right. If there is any malfunction, replace the combined sensor. Standard When the sensor is rotated to the right: YAW_RATE changes negatively. When the sensor is rotated to the left: YAW_RATE changes positively.

STEERING ANGLE SENSOR REMOVAL/INSTALLATION

Note. The steering angle sensor is integrated into the combination switch to ensure sensor performance. Replace the steering angle sensor and combination switch as a single unit. (See COMBINATION SWITCH REMOVAL/INSTALLATION .)

Scheme 29

Scheme 29: STEERING ANGLE SENSOR INSPECTION
  1. Remove the column cover.
  2. Measure the voltage between steering angle sensor terminal B and ground. If there is any malfunction, inspect the wiring harness between steering angle sensor terminal B and battery, then repair or replace if necessary. Standard voltage B+
  3. Turn the ignition switch to the ON position, then measure the voltage between steering angle sensor terminal A and ground. If there is any malfunction, inspect the wiring harness between steering angle sensor terminal A and ignition switch, then repair or replace if necessary. Standard voltage B+
  4. Measure the voltage between steering angle sensor terminal H and the ground. If there is any malfunction, inspect the wiring harness between steering angle sensor terminal H and ground point, then repair or replace if necessary. Standard voltage 0V
  5. Turn the ignition switch off.
  6. Connect the M-MDS to the DLC-2.
  7. Select the "SWA_POS" PID.
  8. Verify the SWA_POS changes when the steering wheel is turned to the left and right. If there is any malfunction, replace the steering angle sensor. Standard When the steering wheel is turned to the right: SWA_POS changes positively. When the steering wheel is turned to the left: SWA_POS changes negatively.

DSC OFF Switch Removal Note

  1. Access the DSC OFF switch from behind of the dashboard, and squeeze the tabs of the switch.
  2. Pull the DSC OFF switch towards the driver's side to remove it.

Scheme 30

Scheme 30: DSC OFF SWITCH INSPECTION

Scheme 31

Scheme 31
  1. Remove the DSC OFF switch.
  2. Verify that the continuity is as indicated in the continuity chart below. If not as indicated in the chart, replace the DSC OFF switch.