Depress the button on the seat belt buckle.
If the belt does not fully retract, pull it out and check for kinks or twists. Then make sure it remains untwisted as it retracts.

NOTE If a belt does not fully retract, inspect it for kinks and twists. If it is still not retracting properly, have it inspected at an Authorized Mazda Dealer.
Fastening the Seat Belt
Front Shoulder Belt AdjusterOil Control Valve (OCV) Inspection [Mzr 2.3 Disi Turbo]
Coil Resistance Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the OCV connector.
4. Measure the coil resistance between terminals A and B using a tester.
If not as specified, replace the OCV..
OCV coil resistance
6. ...
Control System Personalization Features Setting Procedure
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initial
screen of the M-MDS.
When using the IDS (laptop PC)
Select the “Module Programming”.
Select the “Programmable Parameters”.
3 ...
TCM Removal/Installation [FS5 A EL]
CAUTION:
Do not apply a shock to or touch the projection on the TCM, otherwise it
may not operate normally.
1. Perform the following procedures.
a. Remove the battery cover..
b. Disconnect the negative battery cable.
c. Remove the battery component (ex: battery, battery tray a ...