1. Connect the WDS or equivalent to the DLC-2.
2. Measure the PID value.
Note
PID/DATA MONITOR AND RECORD function table

Dtc p0841
TroubleshootingMazda 6 Service Manual: Light Bulbs
With LED Headlights
With Halogen Headlights
WARNING
Never touch the glass portion of a halogen bulb with your bare hands and
always wear eye protection when handling or working around the bulbs: When
a halogen bulb breaks, it is dangerous. These bulbs contain pressurized gas. If
one is ...
Mazda 6 Service Manual: New standards
Following is a comparison of the previous standard and the new standard.
#1 : Diagnostic trouble codes depend on the diagnostic test mode
#2 : Controlled by the PCM
#3 : In some models, there is a fuel pump relay that controls pump speed.
That relay is now called the fuel pump relay (s ...