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: Sunvisors
When you need a sunvisor, lower it for use in front or swing it to the side.
Side Extension Sunvisors (Some models)
The visor extender extends the sunvisor's range of sun shading.
To use, pull it out.
CAUTION
When moving the sunvisor, retract the visor extender to its original position.
O ...
Mazda 6 Service Manual: Recommended Oil
U.S.A. and CANADA
Use SAE 0W-20 engine oil.
Mazda Genuine Oil is used in your Mazda vehicle. Mazda Genuine 0W-20 Oil is required
to achieve optimum fuel economy.
For maintenance service, Mazda recommends Mazda Genuine Parts and Castrol® (U.S.A.
only).
Only use SAE 0W-20 oil “Certified F ...