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: Oil pressure switch inspection
1. Verify that the oil pressure warning light illuminates when the ignition
switch is at ON position.
2. Verify that the oil pressure warning light goes off when the engine is
started.
If the oil pressure warning light does not illuminate or remains
illuminated, inspect the related wirin ...
Mazda 6 Service Manual: Keys
WARNING
Do not leave the key in your vehicle with children and keep them in a place
where your children will not find or play with them: Leaving children in a
vehicle with the key is dangerous. This could result in someone being badly injured
or even killed. Children may find these keys to be ...