
Diagnostic procedure

Dtc b1231
Dtc b1869, b1870Mazda 6 Service Manual: Manual Transaxle Shift Pattern
The shift pattern of the transaxle is conventional, as shown.
Depress the clutch pedal all the way down while shifting; then release it slowly.
Your vehicle is equipped with a device to prevent shifting to R (reverse) by mistake. Push the shift lever downward and shift to R.
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Mazda 6 Service Manual: Front door trim removal/installation
1. Disconnect the negative battery cable.
2. Open the cap using a small screwdriver, then remove the screw.
3. Remove the inner handle cover.
4. Remove the inner garnish.
5. Remove the cover, then remove screw A.
6. Remove the lens cover, then remove screw B.
7. Disengage clips A from the ...