Does anyone know what this mean? CAT, HWL, PAC, CCN in "SENSOR/SW CHECK" ON PFC?

also, i went non-sequential so what do i need to change in PFC?

Thanks guys

 

Page 35 of the manual tells but does not explain .

Except PAC and CCN are easy to understand if you know your basic engine control system.

Port Air Control and Charge CoNtrol in section "F" of the Mazda Service Manual.

 

it shows dark circle next to it, is that normal?

 

keep it all in one post

 

The DARK CIRCLE means it is activated. You can verfiy this by looking at the A/C button and turning your A/C off and on.