Mazda RX-8 Manual page 1693

NO.2 AMOUNT OF AIR BLOWN FROM VENTS DOES NOT CHANGE
2
DESCRIPTION
POSSIBLE CAUSE
Diagnostic procedure
STEP INSPECTION
INSPECT BLOWER SYSTEM
Inspect the following systems and
•
electrical parts:
Blower relay
1
Blower motor
Resistor
Fan switch
Related wiring harnesses
Are they normal?
•
CHECK TO SEE WHETHER
MALFUNCTION IS IN BLOWER UNIT OR
ELSEWHERE
2
Turn ignition switch to ON position.
•
Turn fan switch on.
•
Recirculate air inside vehicle.
•
Does fan in blower unit rotate smoothly?
•
3 INSPECT BLOWER UNIT
Amount of air blown from vents does not change.
Malfunction in blower system.
•
Blower relay, blower motor, resistor, fan switch malfunction (Step 1)
•
Blower unit malfunction (Steps 24)
•
ACTION
Yes Go to next step.
Repair or replace malfunctioning part, then go
No
to Step 5.
Yes Go to Step 4.
No Go to next step.
Yes Go to next step.
(w) RX-8 - HVAC
Page 64