
Diagnostic procedure

Dtc b1992, b1993, b1994, b1995
Dtc b2228, b2230, b2232, b2234Mazda 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: Seat warmer unit inspection
1. Remove the front seat. (See FRONT SEAT REMOVAL/INSTALLATION.)
2. Remove the seat cushion trim.
3. While inspecting for continuity between the terminals A and B of the
connector, use a dryer to warm the thermostat of the seat warmer unit on seat
cushion.
4. When the indication on the ohmm ...