Mazda 6 Service Manual: Dtc p0125

Dtc p0123

Dtc p0131, p0132

Other materials:

Mazda 6 Service Manual: Intermittent concern troubleshooting
  Vibration Method 1. If malfunction occurs or becomes worse while driving on a rough road or when engine is vibrating, perform the steps below. Note There are several reasons vehicle or engine vibration could cause an electrical malfunction. Some of the things to check for are: ...

Mazda 6 Service Manual: Dual proportioning valve inspection (without abs)
1. Connect the SSTs to the brake pipes as shown in the figure. 2. Bleed the air from the brake system. 3. Measure the fluid pressure of the master cylinder and the rear brake. If not within the specification, replace the dual proportioning valve. Fluid pressure ...