Start Stop Unit Removal/Installation: Notes

WARNING:

Handling the driver-side air bag module improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the SRS air bag system service warnings and cautions before handling the air bag module. (See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
(See AIR BAG SYSTEM SERVICE CAUTIONS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)

CAUTION:

If configuration is not performed when the start stop unit is replaced with a new one, the vehicle specification information is not stored in the start stop unit and the system will not operate normally.
When performing configuration, it is necessary to read the vehicle specification information from the start stop unit before replacing it. Connect the M-MDS to the vehicle and perform vehicle identification before removing the start stop unit. The vehicle specification information is temporarily stored in the M-MDS.

NOTE:

The start stop unit prior to replacement stores the vehicle specification information.
A new start stop unit does not store any vehicle specification information.
If the vehicle specification information from the start stop unit prior to replacement cannot be read, perform the configuration using As-Built data.

When replacing the start stop unit, perform the configuration. (See START STOP UNIT CONFIGURATION (USING READ/WRITE FUNCTION) .)
Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the following parts:
1. Driver-side air bag module (See DRIVER-SIDE AIR BAG MODULE REMOVAL [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .) (See DRIVER-SIDE AIR BAG MODULE INSTALLATION (US/CANADA) SPEC. .)
2. Steering wheel (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
3. Clock spring (See CLOCK SPRING REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
4. Column cover (See COLUMN COVER REMOVAL/INSTALLATION .)
5. Wiper and washer switch (See WIPER AND WASHER SWITCH REMOVAL/INSTALLATION .)
6. Light switch (See LIGHT SWITCH REMOVAL/INSTALLATION .)
Cover the instrument cluster, and dashboard using a rag to prevent scratches.

Courtesy of MAZDA MOTORS CORP.
Disconnect the connector.

Courtesy of MAZDA MOTORS CORP.
While pressing the tabs of the clip in the direction of arrow (1) shown in the figure, press it in the direction of arrow (2) to detach the wiring harness clip tabs from the start stop unit.
Remove the wiring harness clip from the start stop unit.
Make a groove on the bolt head by punching it with a chisel using a hammer, and remove the bolts by rotating them counter clockwise.

Courtesy of MAZDA MOTORS CORP.
Remove the bolts.
Remove the start stop unit from the steering shaft by pulling it in the direction of the arrow shown in the figure.

Courtesy of MAZDA MOTORS CORP.
Install in the reverse order of removal. (See START STOP UNIT INSTALLATION NOTE .)
NOTE:
- If configuration cannot be performed by reading/writing of the vehicle specification information, perform the configuration using As-Built information after replacing the start stop unit. (See START STOP UNIT CONFIGURATION (USING AS-BUILT DATA) .)
Perform the following when replacing the start stop unit.
- Immobilizer system-related parts programming. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING .)