Mazda 6 Service Manual: Dtc b1869, b1870

Dtc b1342

Dtc b1871

Other materials:

Mazda 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.   ...

Mazda 6 Service Manual: Rear seat disassembly/assembly
4SD 1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. 5HB 1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. ...