Dynamic Stability Control System: Removal & Installation Mazda MX-5 NC

DSC HU/CM REMOVAL/INSTALLATION

Scheme 4

1. Perform DSC configuration. (See «DSC CONFIGURATION»(ref-244445-S08042108252006092400000).)
2. Remove in the order indicated in (Scheme 4).
3. Install in the reverse order of removal.
4. After installation, perform the combined sensor initialization procedure. (See «COMBINED SENSOR INITIALIZATION PROCEDURE»(ref-244445-S17481721062006092400000).)
5. After installation, perform the steering angle sensor initialization procedure. (See «STEERING ANGLE SENSOR INITIALIZATION PROCEDURE»(ref-244445-S36929774422006092400000).)
6. After installation, perform the steering angle signal initialization procedure. (See «STEERING ANGLE SIGNAL INITIALIZATION PROCEDURE»(ref-244445-S05794702532006092400000).)

Scheme 5

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

Scheme 6

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.

Brake Pipe (DSC HU/CM-brake Pipe Joint) Installation Note

1. Align with the mark made before removing the brake pipe and temporarily install the brake pipe to the DSC HU/CM. CAUTION: If the brake pipe is tightened to the specified torque, it may be difficult to install it to the vehicle. Therefore, only temporarily tighten the brake pipe so that it can still be moved.

Scheme 7

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.
2. Tighten the brake pipe to the specified torque using the SST (49 0259 770B).

Scheme 8

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

FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION

1. Remove or install the front ABS wheel-speed sensor in the same order of vehicles with ABS. (See «FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION»(ref-244482-S36680248392006092400000) .)

REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION

1. Remove or install the rear ABS wheel-speed sensor in the same order of vehicles with ABS. (See «REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION»(ref-244482-S08306396722006092400000) .)

COMBINED SENSOR REMOVAL/INSTALLATION

Scheme 9

1. Remove the console. (See «CONSOLE REMOVAL/INSTALLATION»(ref-244480-S13223079142006092400000).)
2. Remove in the order indicated in (Scheme 9).
3. Install in the reverse order of removal.
4. After installation, perform the combined sensor initialization procedure. (See «COMBINED SENSOR INITIALIZATION PROCEDURE»(ref-244445-S17481721062006092400000).)

Scheme 10

Scheme 11

1. Turn the ignition switch off.
2. Connect the WDS or equivalent 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 (A): LAT_ACCL changes negatively. When the sensor is tilted to the left (B): 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 (A): YAW_RATE changes negatively. When the sensor is rotated to the left (B): 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 12

1. Remove the column cover. (See «COLUMN COVER REMOVAL/INSTALLATION»(ref-244480-S03023275402006092400000) .)
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 0 V
5. Turn the ignition switch off.
6. Connect the WDS or equivalent 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 Connector Removal Note

1. Access the DSC OFF switch connector from behind of the dashboard, and squeeze the tabs of the switch connector.
2. Disconnect the DSC OFF switch connector from the DSC OFF switch.

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 13

Scheme 14

1. Remove the DSC OFF switch.
2. Verify that the continuity is as indicated in (Scheme 13). If not as indicated in (Scheme 13) replace the DSC OFF switch.