Basic flow of troubleshooting
DTC troubleshooting flow (on-board diagnostic)
Diagnostic trouble codes (DTCs) are important hints for repairing malfunctions that are difficult to simulate.
Perform the specific DTC diagnostic inspection to quickly and accurately diagnose the malfunction.
The on-board diagnostic function is used during inspection. When a DTC is shown specifying the cause of a malfunction, continue the diagnostic inspection according to the items indicated by the on-board diagnostic function.
Diagnostic index
The diagnostic index lists the symptoms of specific malfunctions. Select the symptoms related or most closely relating to the malfunction.
Quick diagnosis chart (If mentioned)
The quick diagnosis chart lists diagnosis and inspection procedures to be performed specifically relating to the cause of the malfunction.
Symptom troubleshooting
Symptom troubleshooting quickly determines the location of the malfunction according to symptom type.
Procedures for Use
Using the basic inspection (section K)
Using the DTC troubleshooting flow
Using the diagnosis index
Using the quick diagnosis chart
Using the symptom troubleshooting
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: 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 ...