Mazda MX-5 Miata / Grand Touring. Manual — part 70

COMBINED SENSOR REMOVAL/INSTALLATION

1. Remove the console. (See CONSOLE REMOVAL/INSTALLATION .)

2. Remove in the order indicated in Fig. 13 .

CAUTION:



The 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.

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Dynamic Stability Control - MX-5 Miata

Fig. 13: Combined Sensor (With Torque Specifications)
Courtesy of MAZDA MOTORS CORP.

3. Install in the reverse order of removal.

4. After installation, perform the combined sensor initialization procedure. (See COMBINED SENSOR

INITIALIZATION PROCEDURE .)

COMBINED SENSOR INSPECTION

1. Turn the ignition switch off.

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Dynamic Stability Control - MX-5 Miata

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)

1. Lateral acceleration speed inspection

Fig. 14: Locating DLC-2 Connector
Courtesy of MAZDA MOTORS CORP.

1. 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.

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Dynamic Stability Control - MX-5 Miata

Fig. 15: Tilting Combined Sensor Left & Right
Courtesy of MAZDA MOTORS CORP.

2. Yaw rate inspection

1. 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.

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Dynamic Stability Control - MX-5 Miata